CN112753571A - Breeding method of sorghum cytoplasmic male sterile line with high tannin content - Google Patents
Breeding method of sorghum cytoplasmic male sterile line with high tannin content Download PDFInfo
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- CN112753571A CN112753571A CN202110274859.1A CN202110274859A CN112753571A CN 112753571 A CN112753571 A CN 112753571A CN 202110274859 A CN202110274859 A CN 202110274859A CN 112753571 A CN112753571 A CN 112753571A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/02—Methods or apparatus for hybridisation; Artificial pollination ; Fertility
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/04—Processes of selection involving genotypic or phenotypic markers; Methods of using phenotypic markers for selection
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/46—Gramineae or Poaceae, e.g. ryegrass, rice, wheat or maize
Abstract
The invention provides a breeding method of sorghum cytoplasmic male sterile line with high tannin content, which comprises the following steps: hybridizing a known cytoplasmic male sterile maintainer line as a female parent with a conventional sorghum variety with high tannin content as a male parent to obtain F1 generation seeds, selfing to obtain F2 generation seeds, planting and screening to obtain F3 generation seeds, harvesting and screening to obtain F4 generation strains, planting and selfing to obtain F5 generation strains, testing and crossing the F4 generation strains with the known sorghum cytoplasmic male sterile line to obtain a test cross 1 generation, backcrossing the F5 generation strains with the test cross 1 generation to obtain a backcross 1 generation, backcrossing to a backcross 6 generation, and screening the sorghum cytoplasmic male sterile line which has consistent agronomic characters with the F10 generation strains, stable sterility and high tannin content. The sorghum cytoplasmic male sterile line with high tannin content bred by the invention can effectively prevent birds from pecking during seed production, and the high tannin male sterile line is hybridized with the restorer line, thereby being beneficial to improving the tannin content of hybridized combination and increasing the flavor of sorghum liquor.
Description
Technical Field
The invention belongs to the technical field of genetic breeding, and particularly relates to a breeding method of a sorghum cytoplasmic male sterile line with high tannin content.
Background
Sorghum [ Sorghum bicolor (L.) Moench ] is one of the important cereal crops in China, has multiple resistances of drought resistance, waterlogging resistance, barren resistance, saline-alkali resistance and the like, can be planted in plains, hills and saline-alkali lands, and has high biological yield and economic yield. Sorghum mainly utilizes heterosis by a three-line system, the tannin of the sterile line of the sorghum is generally low at present, bird pecking is more serious in the process of seed production, and the yield of the seed production is seriously influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a breeding method of sorghum cytoplasmic male sterile line with high tannin content aiming at the defects of the prior art, the sorghum cytoplasmic male sterile line with high tannin content bred by the method is hybridized with a restorer line, the tannin content of the hybridized combination is favorably improved, and the flavor of sorghum liquor is increased.
In order to solve the technical problems, the invention adopts the technical scheme that: a breeding method of sorghum cytoplasmic male sterile line with high tannin content comprises the following steps:
s1, hybridizing a known cytoplasmic male sterile maintainer line serving as a female parent with a conventional sorghum variety with high tannin content serving as a male parent to obtain F1 generation seeds; the tannin content of the cytoplasmic male sterile maintainer line is lower than that of the conventional sorghum variety with high tannin content;
s2, planting the F1 seeds obtained in the S1, bagging, selfing and harvesting to obtain F2 seeds;
s3, planting the F2 generation seeds obtained in S2, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and have excellent agronomic characters from the F2 generation seeds, harvesting to obtain F3 generation seeds, and establishing strains;
s4, planting F3 generation seeds obtained in S3, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and are excellent in agronomic characters from the sorghum single plants, harvesting F4 generation seeds according to a strain established by the F3 generation seeds in S3 to obtain F4 generation strains, measuring the tannin content of each F4 generation strain, and reserving seeds with the tannin content being more than or equal to 1.3% from the F4 generation strains to obtain F4 generation strains;
s5, planting the F4 generation strain obtained in S4, when the sorghum is spilt and bloomed, selecting an individual plant with excellent agronomic character from the F4 generation strain by taking the known sorghum cytoplasmic male sterile line in S1 as a female parent, carrying out paired test crossing, carrying out test crossing on the individual plant with excellent agronomic character in the F4 generation strain and the known sorghum cytoplasmic male sterile line to obtain a test crossing 1 generation, selecting the individual plant with excellent agronomic character from the F4 generation strain, carrying out selfing to obtain an F5 generation strain, and reserving seeds with the tannin content of more than or equal to 1.3% from the F5 generation strain to obtain an F5 generation strain;
s6, planting F5 generation strains obtained in S5 and test cross 1 generation obtained in S5 in pairs respectively, detecting the sterility degree of the test cross 1 generation when the sorghum shoots and blooms, backcrossing single plants which are excellent in agronomic characters and can keep the sterility of the test cross 1 generation in the F5 generation strains and the test cross 1 generation to obtain backcross 1 generation, selfing the single plants which are excellent in agronomic characters in the F5 generation strains to obtain F6 generation strains, and keeping seeds with the tannin content being more than or equal to 1.3% in the F6 generation strains to obtain F6 generation strains;
s7, backcrossing the individual plant with excellent agronomic characters in the F6 generation strain obtained in the S6 with the backcross 1 generation obtained in the S6 to obtain a backcross 2 generation, selfing the individual plant with excellent agronomic characters in the F6 generation strain to obtain an F7 generation strain, and reserving seeds with the tannin content more than or equal to 1.3% from the F7 generation strain to obtain an F7 generation strain;
s8, backcrossing the individual plant with excellent agronomic characters in the F7 generation strain obtained in the S7 with the backcross 2 generation obtained in the S7 to obtain a backcross 3 generation, and selfing the individual plant with excellent agronomic characters in the F7 generation strain to obtain an F8 generation strain;
s9, backcrossing the individual plant with excellent agronomic characters in the F8 generation strain obtained in the S8 with the backcross 3 generation obtained in the S8 to obtain a backcross 4 generation, and selfing the individual plant with excellent agronomic characters in the F8 generation strain to obtain an F9 generation strain;
s10, backcrossing the individual plant with excellent agronomic characters in the F9 generation strain obtained in the S9 with the backcross generation 4 obtained in the S9 to obtain a backcross generation 5, and selfing the individual plant with excellent agronomic characters in the F9 generation strain to obtain an F10 generation strain;
and S11, backcrossing the individual plant with excellent agronomic characters in the F10 generation strain obtained in the S10 with the backcross 5 generation obtained in the S10 to obtain a backcross 6 generation, and screening a sorghum cytoplasmic male sterile line which is consistent with the F10 generation strain in agronomic characters, stable in sterility and high in tannin content, namely the sorghum cytoplasmic male sterile line with high tannin content.
Preferably, the tannin content of the known cytoplasmic male sterile maintainer line of S1 is less than or equal to 0.05%; the tannin content of the conventional sorghum variety with high tannin content is 1.5-1.8%.
Preferably, the known cytoplasmic male sterile maintainer line is an a1 type cytoplasmic male sterile maintainer line, and the high tannin content conventional sorghum variety is sorghum No. 1 or sorghum No. 6.
Preferably, the F2 seeds in S3 are planted in a number of not less than 2000.
Preferably, the agronomic traits of S3-S11 are plant growth vigor, plant height, branch number and seed setting rate.
Preferably, the tannin content of the sorghum cytoplasmic male sterile line with high tannin content in S11 is 1.5-1.7%.
Compared with the prior art, the invention has the following advantages:
the sorghum cytoplasmic male sterile line with high tannin content and excellent characters is obtained, the tannin content can be high, the pecking of the sorghum by birds in the seed production process can be avoided, the seed production yield is improved, the bred sorghum cytoplasmic male sterile line with high tannin content is hybridized with the restorer line, the tannin content of the hybridized combination is favorably improved, and the flavor of sorghum liquor is increased.
The present invention will be described in further detail with reference to examples.
Detailed Description
Example 1
The breeding method of the sorghum cytoplasmic male sterile line with high tannin content comprises the following steps:
s1, hybridizing a known cytoplasmic male sterile maintainer line 54B serving as a female parent and a conventional sorghum variety with high tannin content serving as a male parent to obtain F1 generation seeds; the tannin content of the cytoplasmic male sterile maintainer line is lower than that of the conventional sorghum variety with high tannin content; the tannin content of the known cytoplasmic male sterile maintainer line is 0.05%; the tannin content of the conventional sorghum variety with high tannin content is 1.5%; the known cytoplasmic male sterile maintainer line is an A1 type cytoplasmic male sterile maintainer line, and the conventional sorghum variety with high tannin content is No. 1 glutinous sorghum;
s2, planting the F1 seeds obtained in the S1, bagging, selfing and harvesting to obtain F2 seeds;
s3, planting the F2 generation seeds obtained in S2, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and have excellent agronomic characters from the F2 generation seeds, harvesting to obtain F3 generation seeds, and establishing strains; the planting quantity of the F2 seeds is not less than 2000;
s4, planting F3 generation seeds obtained in S3, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and are excellent in agronomic characters from the sorghum single plants, harvesting F4 generation seeds according to a strain established by the F3 generation seeds in S3 to obtain F4 generation strains, measuring the tannin content of each F4 generation strain, and reserving seeds with the tannin content being more than or equal to 1.3% from the F4 generation strains to obtain F4 generation strains;
s5, planting the F4 generation strain obtained in S4, when the sorghum is spilt and bloomed, selecting an individual plant with excellent agronomic character from the F4 generation strain by taking the known sorghum cytoplasmic male sterile line in S1 as a female parent, carrying out paired test crossing, carrying out test crossing on the individual plant with excellent agronomic character in the F4 generation strain and the known sorghum cytoplasmic male sterile line to obtain a test crossing 1 generation, selecting the individual plant with excellent agronomic character from the F4 generation strain, carrying out selfing to obtain an F5 generation strain, and reserving seeds with the tannin content of more than or equal to 1.3% from the F5 generation strain to obtain an F5 generation strain;
s6, planting F5 generation strains obtained in S5 and test cross 1 generation obtained in S5 in pairs respectively, detecting the sterility degree of the test cross 1 generation when the sorghum shoots and blooms, backcrossing single plants which are excellent in agronomic characters and can keep the sterility of the test cross 1 generation in the F5 generation strains and the test cross 1 generation to obtain backcross 1 generation, selfing the single plants which are excellent in agronomic characters in the F5 generation strains to obtain F6 generation strains, and keeping seeds with the tannin content being more than or equal to 1.3% in the F6 generation strains to obtain F6 generation strains;
s7, backcrossing the individual plant with excellent agronomic characters in the F6 generation strain obtained in the S6 with the backcross 1 generation obtained in the S6 to obtain a backcross 2 generation, selfing the individual plant with excellent agronomic characters in the F6 generation strain to obtain an F7 generation strain, and reserving seeds with the tannin content more than or equal to 1.3% from the F7 generation strain to obtain an F7 generation strain;
s8, backcrossing the individual plant with excellent agronomic characters in the F7 generation strain obtained in the S7 with the backcross 2 generation obtained in the S7 to obtain a backcross 3 generation, and selfing the individual plant with excellent agronomic characters in the F7 generation strain to obtain an F8 generation strain;
s9, backcrossing the individual plant with excellent agronomic characters in the F8 generation strain obtained in the S8 with the backcross 3 generation obtained in the S8 to obtain a backcross 4 generation, and selfing the individual plant with excellent agronomic characters in the F8 generation strain to obtain an F9 generation strain;
s10, backcrossing the individual plant with excellent agronomic characters in the F9 generation strain obtained in the S9 with the backcross generation 4 obtained in the S9 to obtain a backcross generation 5, and selfing the individual plant with excellent agronomic characters in the F9 generation strain to obtain an F10 generation strain;
s11, backcrossing the individual plant with excellent agronomic characters in the F10 generation strain obtained in the S10 with the backcross generation 5 obtained in the S10 to obtain a backcross generation 6, and screening a sorghum cytoplasmic male sterile line which is consistent with the F10 generation strain in agronomic characters, stable in sterility and high in tannin content, namely the sorghum cytoplasmic male sterile line with high tannin content; the tannin content of the sorghum cytoplasmic male sterile line with high tannin content is 1.5%;
the agronomic characters of S3-S11 include plant growth vigor, plant height, branch number and seed setting rate.
Example 2
The breeding method of the sorghum cytoplasmic male sterile line with high tannin content comprises the following steps:
s1, hybridizing a known cytoplasmic male sterile maintainer line 407B serving as a female parent and a conventional sorghum variety with high tannin content serving as a male parent to obtain F1 generation seeds; the tannin content of the cytoplasmic male sterile maintainer line is lower than that of the conventional sorghum variety with high tannin content; the tannin content of the known cytoplasmic male sterile maintainer line is 0.03%; the tannin content of the conventional sorghum variety with high tannin content is 1.8%; the known cytoplasmic male sterile maintainer line is an A1 type cytoplasmic male sterile maintainer line, and the conventional sorghum variety with high tannin content is sorghum red sorghum 6;
s2, planting the F1 seeds obtained in the S1, bagging, selfing and harvesting to obtain F2 seeds;
s3, planting the F2 generation seeds obtained in S2, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and have excellent agronomic characters from the F2 generation seeds, harvesting to obtain F3 generation seeds, and establishing strains; the planting quantity of the F2 seeds is not less than 2000;
s4, planting F3 generation seeds obtained in S3, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and are excellent in agronomic characters from the sorghum single plants, harvesting F4 generation seeds according to a strain established by the F3 generation seeds in S3 to obtain F4 generation strains, measuring the tannin content of each F4 generation strain, and reserving seeds with the tannin content being more than or equal to 1.3% from the F4 generation strains to obtain F4 generation strains;
s5, planting the F4 generation strain obtained in S4, when the sorghum is spilt and bloomed, selecting an individual plant with excellent agronomic character from the F4 generation strain by taking the known sorghum cytoplasmic male sterile line in S1 as a female parent, carrying out paired test crossing, carrying out test crossing on the individual plant with excellent agronomic character in the F4 generation strain and the known sorghum cytoplasmic male sterile line to obtain a test crossing 1 generation, selecting the individual plant with excellent agronomic character from the F4 generation strain, carrying out selfing to obtain an F5 generation strain, and reserving seeds with the tannin content of more than or equal to 1.3% from the F5 generation strain to obtain an F5 generation strain;
s6, planting F5 generation strains obtained in S5 and test cross 1 generation obtained in S5 in pairs respectively, detecting the sterility degree of the test cross 1 generation when the sorghum shoots and blooms, backcrossing single plants which are excellent in agronomic characters and can keep the sterility of the test cross 1 generation in the F5 generation strains and the test cross 1 generation to obtain backcross 1 generation, selfing the single plants which are excellent in agronomic characters in the F5 generation strains to obtain F6 generation strains, and keeping seeds with the tannin content being more than or equal to 1.3% in the F6 generation strains to obtain F6 generation strains;
s7, backcrossing the individual plant with excellent agronomic characters in the F6 generation strain obtained in the S6 with the backcross 1 generation obtained in the S6 to obtain a backcross 2 generation, selfing the individual plant with excellent agronomic characters in the F6 generation strain to obtain an F7 generation strain, and reserving seeds with the tannin content more than or equal to 1.3% from the F7 generation strain to obtain an F7 generation strain;
s8, backcrossing the individual plant with excellent agronomic characters in the F7 generation strain obtained in the S7 with the backcross 2 generation obtained in the S7 to obtain a backcross 3 generation, and selfing the individual plant with excellent agronomic characters in the F7 generation strain to obtain an F8 generation strain;
s9, backcrossing the individual plant with excellent agronomic characters in the F8 generation strain obtained in the S8 with the backcross 3 generation obtained in the S8 to obtain a backcross 4 generation, and selfing the individual plant with excellent agronomic characters in the F8 generation strain to obtain an F9 generation strain;
s10, backcrossing the individual plant with excellent agronomic characters in the F9 generation strain obtained in the S9 with the backcross generation 4 obtained in the S9 to obtain a backcross generation 5, and selfing the individual plant with excellent agronomic characters in the F9 generation strain to obtain an F10 generation strain;
s11, backcrossing the individual plant with excellent agronomic characters in the F10 generation strain obtained in the S10 with the backcross generation 5 obtained in the S10 to obtain a backcross generation 6, and screening a sorghum cytoplasmic male sterile line which is consistent with the F10 generation strain in agronomic characters, stable in sterility and high in tannin content, namely the sorghum cytoplasmic male sterile line with high tannin content; the tannin content of the sorghum cytoplasmic male sterile line with high tannin content is 1.7%;
the agronomic characters of S3-S11 include plant growth vigor, plant height, branch number and seed setting rate.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.
Claims (6)
1. A breeding method of sorghum cytoplasmic male sterile line with high tannin content is characterized in that the method comprises the following steps:
s1, hybridizing a known cytoplasmic male sterile maintainer line serving as a female parent with a conventional sorghum variety with high tannin content serving as a male parent to obtain F1 generation seeds; the tannin content of the cytoplasmic male sterile maintainer line is lower than that of the conventional sorghum variety with high tannin content;
s2, planting the F1 seeds obtained in the S1, bagging, selfing and harvesting to obtain F2 seeds;
s3, planting the F2 generation seeds obtained in S2, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and have excellent agronomic characters from the F2 generation seeds, harvesting to obtain F3 generation seeds, and establishing strains;
s4, planting F3 generation seeds obtained in S3, selecting sorghum single plants which are chewy and unsmooth in the milk stage, are not pecked by mature-stage birds and are excellent in agronomic characters from the sorghum single plants, harvesting F4 generation seeds according to a strain established by the F3 generation seeds in S3 to obtain F4 generation strains, measuring the tannin content of each F4 generation strain, and reserving seeds with the tannin content being more than or equal to 1.3% from the F4 generation strains to obtain F4 generation strains;
s5, planting the F4 generation strain obtained in S4, when the sorghum is spilt and bloomed, selecting an individual plant with excellent agronomic character from the F4 generation strain by taking the known sorghum cytoplasmic male sterile line in S1 as a female parent, carrying out paired test crossing, carrying out test crossing on the individual plant with excellent agronomic character in the F4 generation strain and the known sorghum cytoplasmic male sterile line to obtain a test crossing 1 generation, selecting the individual plant with excellent agronomic character from the F4 generation strain, carrying out selfing to obtain an F5 generation strain, and reserving seeds with the tannin content of more than or equal to 1.3% from the F5 generation strain to obtain an F5 generation strain;
s6, planting F5 generation strains obtained in S5 and test cross 1 generation obtained in S5 in pairs respectively, detecting the sterility degree of the test cross 1 generation when the sorghum shoots and blooms, backcrossing single plants which are excellent in agronomic characters and can keep the sterility of the test cross 1 generation in the F5 generation strains and the test cross 1 generation to obtain backcross 1 generation, selfing the single plants which are excellent in agronomic characters in the F5 generation strains to obtain F6 generation strains, and keeping seeds with the tannin content being more than or equal to 1.3% in the F6 generation strains to obtain F6 generation strains;
s7, backcrossing the individual plant with excellent agronomic characters in the F6 generation strain obtained in the S6 with the backcross 1 generation obtained in the S6 to obtain a backcross 2 generation, selfing the individual plant with excellent agronomic characters in the F6 generation strain to obtain an F7 generation strain, and reserving seeds with the tannin content more than or equal to 1.3% from the F7 generation strain to obtain an F7 generation strain;
s8, backcrossing the individual plant with excellent agronomic characters in the F7 generation strain obtained in the S7 with the backcross 2 generation obtained in the S7 to obtain a backcross 3 generation, and selfing the individual plant with excellent agronomic characters in the F7 generation strain to obtain an F8 generation strain;
s9, backcrossing the individual plant with excellent agronomic characters in the F8 generation strain obtained in the S8 with the backcross 3 generation obtained in the S8 to obtain a backcross 4 generation, and selfing the individual plant with excellent agronomic characters in the F8 generation strain to obtain an F9 generation strain;
s10, backcrossing the individual plant with excellent agronomic characters in the F9 generation strain obtained in the S9 with the backcross generation 4 obtained in the S9 to obtain a backcross generation 5, and selfing the individual plant with excellent agronomic characters in the F9 generation strain to obtain an F10 generation strain;
and S11, backcrossing the individual plant with excellent agronomic characters in the F10 generation strain obtained in the S10 with the backcross 5 generation obtained in the S10 to obtain a backcross 6 generation, and screening a sorghum cytoplasmic male sterile line which is consistent with the F10 generation strain in agronomic characters, stable in sterility and high in tannin content, namely the sorghum cytoplasmic male sterile line with high tannin content.
2. The method for breeding the sorghum sterile line with high tannin content according to claim 1, wherein the tannin content of the known cytoplasmic male sterile maintainer line in S1 is less than or equal to 0.05%; the tannin content of the conventional sorghum variety with high tannin content is 1.5-1.8%.
3. The method for breeding the high-tannin sorghum sterile line, according to claim 2, wherein the known cytoplasmic male sterile maintainer line is an A1 type cytoplasmic male sterile maintainer line, and the high-tannin conventional sorghum variety is sorghum Glutinosa or sorghum Red sorghum 6.
4. The method for breeding the sorghum sterile line with high tannin content according to claim 1, wherein the F2 seeds are planted in S3 in a number of not less than 2000.
5. The breeding method of the sorghum sterile line with high tannin content according to claim 1, wherein the agronomic traits in S3-S11 are plant growth vigor, plant height, branch number and seed setting rate.
6. The method for breeding the sorghum sterile line with high tannin content according to claim 1, wherein the tannin content of the sorghum cytoplasmic male sterile line with high tannin content in S11 is 1.5% -1.7%.
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| CN1136885A (en) * | 1995-05-31 | 1996-12-04 | 辽宁省农科院高粱研究所 | Hybrid vigor utilizing technique for Chinese sorghum 'Liaoza No.10' |
| US20050283851A1 (en) * | 2004-03-09 | 2005-12-22 | Sharon Abrahams | Novel genes encoding proteins involved in proanthocyanidin synthesis |
| US20110162100A1 (en) * | 2009-12-28 | 2011-06-30 | Pioneer Hi-Bred International, Inc. | Sorghum fertility restorer genotypes and methods of marker-assisted selection |
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| CN108377907A (en) * | 2018-04-16 | 2018-08-10 | 吉林省农业科学院 | A method of initiative sorghum male sterile line |
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