CN108476969A - Rice homogeneity oozes the selection of round-grained rice restorer - Google Patents
Rice homogeneity oozes the selection of round-grained rice restorer Download PDFInfo
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- CN108476969A CN108476969A CN201810146365.3A CN201810146365A CN108476969A CN 108476969 A CN108476969 A CN 108476969A CN 201810146365 A CN201810146365 A CN 201810146365A CN 108476969 A CN108476969 A CN 108476969A
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- rice
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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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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- General Health & Medical Sciences (AREA)
- Botany (AREA)
- Developmental Biology & Embryology (AREA)
- Environmental Sciences (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The invention discloses the selections that rice homogeneity oozes round-grained rice restorer, select existing homogeneity to ooze round-grained rice restorer and carry out hybridizing acquisition F with dense cluster type restorer1, then mix and harvest to obtain F2；F2Group goes out the fine individual plant of better resistance by rice blast evaluation and screening；The preliminary survey that coordinate force is carried out in F3 generations, filters out the stronger F4 of coordinate force for elite plant strain, and the consistent strain of the feature for selecting hybrid vigour strong is mixed to receive breeding, is bred as new homogeneity and oozes round-grained rice dense cluster type restorer.Hybridized with dense cluster type restorer using existing homogeneity crushed grain round-grained rice restorer material in the method for the present invention, utilize the hybrid vigour of subspecies, and it carries out rice blast identification using F2 generations to be combined for early stage combining ability test is carried out with F3, effectively reduce workload and shortens the breeding time limit.To further play the hybrid vigour of subspecies, make contributions for hybrid rice volume increase.
Description
Technical field
The present invention relates to rice breeding technology fields, and the selection and breeding side of round-grained rice restorer is oozed more particularly, to a kind of rice homogeneity
Method.
Technical background
Monitoring of Paddy Rice Plant Area accounts for about the 30% of cereal crops area, and rice yield accounts for the half of total grain output, therefore,
Rice Production is most important to the grain-production and grain security that ensure China.By reinforcing Rice Germplasm Resources innovation, implement
The selection and breeding of super hybrid rice Combination nova could constantly push advancing for rice research and production.The current country passes through authorization
Reaching unanimity of Rice Genetic, difference is smaller, and the heredity for causing to produce rice varieties is fragile, seriously affects rice peace
Full production.Therefore in order to solve the problems, such as that rice genetic difference is smaller, ensure that rice safety production, rice breeding men exist always
New excellent resources and heterosis utilization approach are found, to the new high yield and high quality kind of selection and breeding.Homogeneity oozes the seed rice money of round-grained rice
The innovation in source and heterosis utilization select the Hybrid Rice Combinations of good quality and high output, have important meaning to the selection and breeding of super hybridization rice
Justice.
Invention content
The purpose of the present invention is be directed to soil sampling caused by reducing karst Agriculture Field experiment soil heterogeneity
Inaccuracy, especially heavy metal soil are sampled not reproducible sex chromosome mosaicism, and the selection and breeding side that a kind of rice homogeneity oozes round-grained rice restorer is provided
Method.
The object of the present invention is achieved like this：
The purpose of the present invention：The purpose of the present invention is to provide the selection and breeding sides that a kind of rice homogeneity oozes round-grained rice dense cluster type restorer
Method enriches rice genetic basis, overcomes hereditary fragility, improve the hybrid vigour of Rice Combination.
The invention is realized in this way：It selects existing homogeneity to ooze round-grained rice restorer to carry out hybridizing acquisition with dense cluster type restorer
F1, then mix and harvest to obtain F2；F2Group goes out the fine individual plant of better resistance by rice blast evaluation and screening；Coordinated in F3 generations
The preliminary survey of power filters out the stronger F4 of coordinate force for elite plant strain, and the consistent strain of the feature for selecting hybrid vigour strong is mixed to be received
Breeding, is bred as new homogeneity and oozes round-grained rice dense cluster type restorer.
Specifically, the step of its technical solution, is：
(1) hybridize：It selects existing rice homogeneity to ooze round-grained rice restorer with dense cluster type rice restorer to be hybridized, obtains F1
For seed, F1 generation seed is planted, mixes and obtains F2 after receiving for seed.
(2) rice blast is identified：F2 is planted in rice blast sick nursery for group, is carried out blast resisting evaluation and screening, is selected resistance
Stronger single plant obtains F3 for seed.
(3) it surveys extensive：F3 is planted for strain material, the strain of selection target type carries out test cross with common rice sterile line,
Harvest single plant obtains F4 for seed and corresponding generation test cross kind respectively.
(4) work of the 3rd step is repeated, until restorer is stablized.
The present invention has the advantage that compared with traditional technology：
Hybridized with dense cluster type restorer using existing homogeneity crushed grain round-grained rice restorer material in the method for the present invention, utilizes subspecies
Between hybrid vigour, and using F2 generation carry out rice blast identification with F3 generation progress early stage combining ability test be combined, effectively subtract
Few workload and the shortening breeding time limit.To further play the hybrid vigour of subspecies, make contributions for hybrid rice volume increase.
Specific implementation mode
With reference to embodiment, the invention will be further described, but not as any limitation of the invention.
Embodiment 1：
1, hybridize：It is that female parent hybridizes with dense cluster type restorer R749 to ooze round-grained rice restorer Q431 with existing homogeneity, obtains F1
Generation, after planting F1 generation, it is mixed harvest F2 for seed.
2, F2 is identified for rice blast：F2 carries out natural appraisal for mixed planting in rice blast sick nursery, filters out disease-resistant relatively strong
Fine individual plant, obtain F3 for seed.
3, F3 is for combining ability test：It selects excellent strain to be hybridized with normal sterile line, obtains cenospecies, and harvest pair
The single plant answered obtains F4 generations.
4, F4 is selected for pedigree：F4 is planted for strain material and cenospecies.According to the performance of cenospecies, select to do very well
Corresponding F4 carries out focal selection for strain material.
5, F5 is for combining ability test：Selection elite plant strain is hybridized with common sterile line, obtains cenospecies, and harvest pair
Single plant is answered, obtains F6 for seed.
6, F6 is selected for hybrid vigour：F6 is planted for strain and corresponding test cross kind.Select hybrid vigour strong, feature domestic animal one
The strain of cause is mixed to be received, and is bred as new homogeneity and is oozed round-grained rice dense cluster type restorer " extensive 100 " in Guizhou Province and " extensive 101 " in Guizhou Province, for the progress of next season
The a large amount of of cross combination are measured.
The specific application example of the above only present invention, the present invention also has other embodiments, all to use equivalent replacement
Or the technical solution that equivalent transformation is formed, it all falls within protection domain of the presently claimed invention.
Claims (3)
1. a kind of rice homogeneity oozes the selection of round-grained rice restorer, it is characterised in that：Select existing homogeneity ooze round-grained rice restorer with
Dense cluster type restorer carries out hybridization and obtains F1, then mix and harvest to obtain F2；F2Group goes out better resistance by rice blast evaluation and screening
Fine individual plant；The preliminary survey that coordinate force is carried out in F3 generations, filter out the stronger F4 of coordinate force for elite plant strain, selects hybrid vigour strong
The consistent strain of feature is mixed to receive breeding, is bred as new homogeneity and oozes round-grained rice dense cluster type restorer.
2. rice homogeneity according to claim 1 oozes the selection of round-grained rice restorer, it is characterised in that include the following steps：
(1) hybridize：It selects existing rice homogeneity to ooze round-grained rice restorer with dense cluster type rice restorer to be hybridized, obtains F1 generation kind
Son plants F1 generation seed, mixes and obtains F2 after receiving for seed；
(2) rice blast is identified：F2 is planted in rice blast sick nursery for group, is carried out blast resisting evaluation and screening, is selected better resistance
Single plant obtain F3 for seed；
(3) it surveys extensive：F3 is planted for strain material, the strain of selection target type carries out test cross with common rice sterile line, respectively
It harvests single plant and obtains F4 for seed and corresponding generation test cross kind；
(4) work of (3) step is repeated, until restorer is stablized.
3. rice homogeneity according to claim 1 or 2 oozes the selection of round-grained rice restorer, it is characterised in that including walking as follows
Suddenly：
(1) hybridize：It is that female parent hybridizes with dense cluster type restorer R749 to ooze round-grained rice restorer Q431 with existing homogeneity, obtains F1 generation,
After planting F1 generation, it is mixed harvest F2 for seed；
(2) F2 is identified for rice blast：F2 carries out natural appraisal for mixed planting in rice blast sick nursery, filters out disease-resistant stronger excellent
Good single plant obtains F3 for seed；
(3) F3 is for combining ability test：It selects excellent strain to be hybridized with normal sterile line, obtains cenospecies, and harvest correspondence
Single plant, obtain F4 generations；
(4) F4 is selected for pedigree：F4 is planted for strain material and cenospecies；According to the performance of cenospecies, pair to do very well is selected
F4 is answered to carry out focal selection for strain material；
(5) F5 is for combining ability test：Selection elite plant strain is hybridized with common sterile line, obtains cenospecies, and harvest correspondence
Single plant obtains F6 for seed；
(6) F6 is selected for hybrid vigour：F6 is planted for strain and corresponding test cross kind；Select hybrid vigour strong, feature domestic animal is consistent
Strain it is mixed receive, be bred as new homogeneity and ooze round-grained rice dense cluster type restorer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146365.3A CN108476969A (en) | 2018-02-12 | 2018-02-12 | Rice homogeneity oozes the selection of round-grained rice restorer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810146365.3A CN108476969A (en) | 2018-02-12 | 2018-02-12 | Rice homogeneity oozes the selection of round-grained rice restorer |
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| CN108476969A true CN108476969A (en) | 2018-09-04 |
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| CN201810146365.3A Pending CN108476969A (en) | 2018-02-12 | 2018-02-12 | Rice homogeneity oozes the selection of round-grained rice restorer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663992A (en) * | 2009-06-23 | 2010-03-10 | 江苏沿海地区农业科学研究所 | Cultivation method of high-grain weight excellent-quality ternary hybrid rice variety |
| CN102388798A (en) * | 2011-07-28 | 2012-03-28 | 江苏丰源种业有限公司 | Breeding method of rice photo-thermo-sensitive genic male sterile line |
| CN103168680A (en) * | 2013-04-15 | 2013-06-26 | 四川得月科技种业有限公司 | Method for rapidly and selectively breeding restoring line of hybrid rice |
| CN104823843A (en) * | 2015-05-06 | 2015-08-12 | 云南种业集团有限责任公司 | Breeding method of one-restore dual-purpose aromatic soft hybrid rice restorer line |
| CN106993528A (en) * | 2017-04-06 | 2017-08-01 | 中国水稻研究所 | A kind of dense cluster type two-line sterile line of rice selection |
-
2018
- 2018-02-12 CN CN201810146365.3A patent/CN108476969A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663992A (en) * | 2009-06-23 | 2010-03-10 | 江苏沿海地区农业科学研究所 | Cultivation method of high-grain weight excellent-quality ternary hybrid rice variety |
| CN102388798A (en) * | 2011-07-28 | 2012-03-28 | 江苏丰源种业有限公司 | Breeding method of rice photo-thermo-sensitive genic male sterile line |
| CN103168680A (en) * | 2013-04-15 | 2013-06-26 | 四川得月科技种业有限公司 | Method for rapidly and selectively breeding restoring line of hybrid rice |
| CN104823843A (en) * | 2015-05-06 | 2015-08-12 | 云南种业集团有限责任公司 | Breeding method of one-restore dual-purpose aromatic soft hybrid rice restorer line |
| CN106993528A (en) * | 2017-04-06 | 2017-08-01 | 中国水稻研究所 | A kind of dense cluster type two-line sterile line of rice selection |
Non-Patent Citations (1)
| Title |
|---|
| 周乐良等: ""杂交水稻恢复系Q431选育及其组合金优431优异性分析"", 《种子》 * |
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Application publication date: 20180904 |