WO2011022792A1 - Método para obtenção de linhagens parentais fêmeas de asteraceas a partir de híbridos - Google Patents
Método para obtenção de linhagens parentais fêmeas de asteraceas a partir de híbridos Download PDFInfo
- Publication number
- WO2011022792A1 WO2011022792A1 PCT/BR2009/000277 BR2009000277W WO2011022792A1 WO 2011022792 A1 WO2011022792 A1 WO 2011022792A1 BR 2009000277 W BR2009000277 W BR 2009000277W WO 2011022792 A1 WO2011022792 A1 WO 2011022792A1
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- Prior art keywords
- rfrf
- plants
- rha
- strain
- strains
- Prior art date
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Classifications
-
- 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
- A01H1/022—Genic fertility modification, e.g. apomixis
Definitions
- the present invention relates to the field of plant breeding for agricultural or ornamental purposes, specifically for obtaining female parent lines from sunflower hybrids, based on crossbreeding strategies of interest.
- Hybrid seed production involves controlled pollination between parent lines, with sufficient pollen transfer and limited self-fertilization.
- Many methods have been proposed to limit self-fertilization of parent lines, such as chemical-induced male sterility, genetic male sterility, cytoplasmic male sterility and self-incompatibility.
- Cytoplasmic male sterility associated with pollen fertility restorative genes have been the main promoters of the development of commercial sunflower (Helianthus annuus L.) hybrids in the world (MILLER, JF; FICK, GN. The genetics of sunflower. In: SCHNEITER, AA (Ed.), Sunflower technology and production, Wisconsin: ASA-CSSA-SSSA, 1997. p.441-495.).
- the inbred female parent line is a CMS-HA, which bears the characteristic of male cytoplasmic sterility ( S-type cytoplasm), but no fertility restorer (Rf) genes in the nucleus.
- the female parent is therefore a male-sterile inbred line with genotype S-rfrf.
- the male parent line is an inbred RHA strain, which may contain a normal (N) or S (sterile) type cytoplasm, but must necessarily carry the Rf gene. Therefore, the inbred RHA strain is male-fertile, either with the S-RfRf genotype or with the N-RfRf genotype.
- the resulting hybrid is male-fertile with the S-Rfrf genotype.
- Inbred lines with the fertility restorer gene can be developed by self-pollination of commercial hybrids, followed by selection of male-fertile plants from segregating populations (MILLER, JF; VICK, BA. sunflower germplasms Crop Science, v.41, p.602, 2001; Miller, JF; GULYA, TJ; SEILER, GJ Registration of five fertility restorer sunflower germplasms., Crop Science, v.42, p.989-991, 2002. ; MILLER, JF; GREEN, CE; LI, YM; CHANEY, RL Registration of three low cadmium (HA 448, HA 449, and RHA 450) confection sunflower genetic stocks.
- CMS-HA strains male cytoplasmic sterility strains
- the non-recurrent parent is any endogenous S-type (sterile male) cytoplasm strain and the recurrent is usually a pedigree. Inbreeding HA previously improved by several selection cycles and carries the N-rfrf genotype.
- HA strains maintain CMS-HA strains, and are derived from other HA strains (Miller, JF; Vick, BA. Registration of four high linoleic sunflower germplasms. Crop Science, v.41, p.
- MILLER, JF; VICK BA Registration of four mid-range oil acid sunflower genetic stocks Crop Science, v.42, p.994, 2002; MILLER, JF; SEILER, GJ Registrations of five oilseed maintainer ( HA 429-HA 433) sunflower germplasm lines Crop Science, v.43, p.2313-2314, 2003; MILLER, JF; GULYA, TJ Registration of two restorer (RHA 439 and RHA 440) and one maintainer (HA 441) Sc / ero / n / a-tolerant oilseed sunflower germplasms.
- the aim of the present invention is to present a method of producing female parent lines from hybrids of Asteraceae plants using the sunflower as a model and incorporations made to obtain the described results by said method.
- the present invention provides a method for obtaining female parent lines of the botanical family Asteraceae using the Helianthus annuus species as a model from hybrids.
- inbred lines RH A obtained from the self-fertilization of hybrids (commercial or not), in inbred HA lines and, thus, alter these HA strains in male sterile plants.
- This method consists of several stages of breeding and evaluation of progenies obtained from the proposed breeding, as follows:
- step b Generate an F1 containing 50% of the genotype of the recurrent lineage of step a;
- step h (i) identify and self-pollinate HA (N rfrf) and RHA (N RfRf and N Rfrf) plants obtained from self-pollination of Rfrf plants in step h; j) Alter plant HA (N rfrf) obtained in step h in male-sterile plants by successive cross-breeding, where the non-recurrent strain is any plant with cytoplasmic male sterility and the recurrent strain is the HA strain. (Nfrf). F1 generation is obtained at the HA plant identification step described in step i.
- the RC1 generation identification step in the claimed method is incorporated into the invention according to the following procedure: fertilization of male sterile plants with RC1 produced pollen; identification of a strain produced in RC1 as the dominant homozygote for the fertility restoration gene (RfRf) if it generates 100% fertile plants after mating; or, the identification of a strain produced in RC1 as heterozygous for the fertility restoration gene (Rfrf) if it generates fertile and sterile plants.
- This process is also done in the RC n generation identification step (step h).
- the identification of the HA (N rfrf) and RHA (N RfRf and N Rfrf) plants obtained in step i in the claimed method is incorporated into the invention according to the following procedure: fertilization of male-sterile plants with plant-produced pollen. test; identification of HA (N rfrf) plants if it is generating 100% of plants sterile after crossing; or the identification of RHA plant (N RfRf and N Rfrf) if it generates 100% fertile or fertile plants in any proportion.
- Obtaining the RC2 provided for in step f as an embodiment of the method of the invention is accomplished by pollinating previously emasculated RC1 plant flowers (or pollen sterilization with chemical agents or other mechanisms) with pollen from the recurrent RHA strain cited above. in step a; the resulting progeny show normal cytoplasm and carry the dominant homozygous genotype to the fertility restoration gene; or the resulting progeny may be from RC1 strains containing normal cytoplasm and bearing the homozygous or heterozygous fertility restoration genotype.
- the method described above further incorporates the fact that fertilization of male-sterile plants is done with pollen extracted from the peripheral region of the RC1 plant chapter, which after having pollen extracted, has this part of the chapter immediately removed. .
- Another embodiment of the claimed method reveals that RC1 flowers to be pollinated with recurrent RHA strain pollen are located in the central region of the chapter.
- step h One change from step h, as an embodiment of the claimed method, is to self-fertilize a set of RC n (RfRf and Rfrf) plants and identify and self-pollinate HA (N rfrf) and RHA plants (N RfRf and N Rfrf) from that set. self-fertilized as described in step i.
- An additional embodiment of the method presented is the use of molecular markers, or any other technology, for the differentiation identification of heterozygous and homozygous plants for the fertility restoration gene.
- Figure 1 Obtaining inbred sunflower strains containing the normal cytoplasm, which are heterozygous or homozygous for the Rf fertility restoration gene.
- Cytoplasmic male-strains strains from all RHA strains included in this study were obtained using the methodology proposed in the present invention.
- the usual procedure for obtaining female sunflower strains for the production of hybrids requires successive self-fertilization of HA strains and incorporation of cytoplasmic male sterility in these inbred HA plants (MILLER, JF; FICK, GN.)
- MILLER, JF; FICK, GN. The genetics of sunflower.
- the aim of the present invention is to present a method of producing female parent lines from hybrids of Asteraceae plants using the sunflower as a model and incorporations made to obtain the described results by said method.
- only genotypes expressing monogenic restoration of fertility for CMS PET1 were used, as in more than 40 CMS sources identified since Leclercq's discovery of PET1 CMS in 1968 (Leclercq, P. 1969 A sterilInstitut cytoplasmique sacrifice le tournament Ann Amelior Plantes 19: 99-106), from a cross between H.petiolaris and H. annuus, it has been found that restoration of fertility is predominantly controlled by one or two genes. (SERIES, H. Identification, study and utilization in breeding programs of new CMS sources.
- RHA strains were altered into HA strains by successive cross-breeding, crossing any HA strains (non-recurrent strains) with an inbred RHA strains (recurrent strains) ( Figure 1).
- the crossings since the female parents (HA and the F1 and RC n generations) have a normal cytoplasm, they were previously emasculated.
- heterozygotes (Rfrf) and homozygotes (RfRf) of RC n generation were self-pollinated.
- Self-pollinated plants Rfrf generation plants were obtained RC n H a (N rfrf) and RHA plants (N and N RfRf Rfrf).
- HA (N rfrf) and RHA (N RfRf and N Rfrf) plants obtained from self-pollination of Rfrf plants were self-pollinated.
- plant HA (N rfrf) was altered in male-sterile plants by successive cross-breeding, in which the non-recurrent strain was any cytoplasmic male-sterility plant and the recurrent strain was HA (N rfrf) strain.
- the F1 generation was obtained in the HA plant identification step. The process It went according to any backcrossing system, with male-sterile plants crossed with the parental HA.
- the feasibility of transforming the process of extracting female parental strains from hybrids into a breeding routine is also associated with the number of RHA strains to be altered in inbred HA strains.
- One way to reduce this number is to evaluate, before changing, the general and / or specific combining ability of RHA strains using topcross with CMS-HA strains isogenic to male strains of hybrids, or to male-sterile or strains. with high combining ability. Only the elite lineages would be altered, thus reducing the time and labor required.
- a further embodiment of the invention is that test crosses to differentiate heterozygous plants from homozygous plants for the fertility restoration gene may also be facilitated by the use of molecular markers. This is true for the single gene controlled CMS trait and is especially useful in the few cases reported in the sunflower fertility restoration literature being controlled by a maximum of four genes (VRANCEANU, VA; STOENESCU, FM. sunflower (Helianthus annuus L.) Euphytica, v.20, p.536-541, 1971.; ANASHCHENKO, AV; DUKA, MV Study of the genetic system of CMS-Rf in sunflower (Helianthus annuus L.) III.
- CMS-HA strains were derived from 10 inbred RHA strains obtained by self-fertilization and selection of plants from several commercial hybrids in Brazil, without recording their origins. Only genotypes expressing restoration of monogenic fertility for CMS PET1 were used.
- RHA strains were initially altered into HA strains through three backcrosses (sufficient to reach an expected percentage of recurrent strains of over 90%) with HA 300 strains (inbred strains). USDA-ARS), used as a non-recurring lineage. The RfRf and Rfrf plants obtained from the third generation of backcrossing were then self-fertilized and identified by test crosses with the CMS-HA 300 inbred line. This inbred CMS-HA strain was also used to differentiate HA plants.
- N rfrf from RHA plants (N RfRf and N Rfrf) from the progeny of self-fertilized Rfrf plants.
- HA lines were then changed to CMS-HA by three cross-breeding with the CMS-HA 300 line, used as a non-recurrent parent, according to the procedures described by MILLER, J.F .; FICK, G.N. The genetics of sunflower. In: SCHNEITER, A.A. (Ed.). Sunflower technology and production. Wisconsin: ASA-CSSA-SSSA, 1997. p.441-495. All crossings performed to alter RHA in HA plants were performed in a greenhouse environment to obtain a high control of experimental conditions. However, crosses for introducing male sterility into HA plants were performed in the experimental field, as is routinely done in breeding programs.
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (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
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112012004371A BR112012004371A2 (pt) | 2009-08-31 | 2009-08-31 | método para obtenção de linhagens parentais fêmeas de asteraceas a partir de híbridos |
PCT/BR2009/000277 WO2011022792A1 (pt) | 2009-08-31 | 2009-08-31 | Método para obtenção de linhagens parentais fêmeas de asteraceas a partir de híbridos |
RU2012112597/10A RU2012112597A (ru) | 2009-08-31 | 2009-08-31 | Способ получения женских инбредных линий из гибридов asteracea |
EP09848588.1A EP2484201A4 (en) | 2009-08-31 | 2009-08-31 | METHOD OF OBTAINING FEMALE PARENTAL LINES OF ASTERACEAE FROM HYBRIDS |
UAA201202387A UA105801C2 (uk) | 2009-08-31 | 2009-08-31 | Спосіб одержання жіночих інбредних ліній з гібридів asteracea |
US13/393,466 US20120233722A1 (en) | 2009-08-31 | 2009-08-31 | Method of obtaining female inbred lines from asteracea hybrids |
US16/802,870 US20200187438A1 (en) | 2009-08-31 | 2020-02-27 | Method of obtaining female inbred lines from asteracea hybrids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2009/000277 WO2011022792A1 (pt) | 2009-08-31 | 2009-08-31 | Método para obtenção de linhagens parentais fêmeas de asteraceas a partir de híbridos |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/393,466 A-371-Of-International US20120233722A1 (en) | 2009-08-31 | 2009-08-31 | Method of obtaining female inbred lines from asteracea hybrids |
US16/802,870 Division US20200187438A1 (en) | 2009-08-31 | 2020-02-27 | Method of obtaining female inbred lines from asteracea hybrids |
Publications (1)
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WO2011022792A1 true WO2011022792A1 (pt) | 2011-03-03 |
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PCT/BR2009/000277 WO2011022792A1 (pt) | 2009-08-31 | 2009-08-31 | Método para obtenção de linhagens parentais fêmeas de asteraceas a partir de híbridos |
Country Status (6)
Country | Link |
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US (2) | US20120233722A1 (pt) |
EP (1) | EP2484201A4 (pt) |
BR (1) | BR112012004371A2 (pt) |
RU (1) | RU2012112597A (pt) |
UA (1) | UA105801C2 (pt) |
WO (1) | WO2011022792A1 (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104255439A (zh) * | 2014-10-11 | 2015-01-07 | 河北双星种业有限公司 | 一种向日葵人工去雄的方法 |
CN111837941A (zh) * | 2020-08-10 | 2020-10-30 | 四川省农业科学院水稻高粱研究所 | 一种低镉含量稻米杂交品种的选育方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6034307A (en) * | 1997-12-18 | 2000-03-07 | Pannar Seed Limited | Hybrid sunflower plant and seed pan 9612 |
WO2008135296A2 (en) * | 2007-06-13 | 2008-11-13 | Syngenta Participations Ag | New hybrid system for brassica napus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4627192B1 (en) * | 1984-11-16 | 1995-10-17 | Sigco Res Inc | Sunflower products and methods for their production |
WO2001065922A2 (en) * | 2000-03-09 | 2001-09-13 | E. I. Du Pont De Nemours And Company | Sulfonylurea-tolerant sunflower plants |
-
2009
- 2009-08-31 UA UAA201202387A patent/UA105801C2/uk unknown
- 2009-08-31 WO PCT/BR2009/000277 patent/WO2011022792A1/pt active Application Filing
- 2009-08-31 BR BR112012004371A patent/BR112012004371A2/pt not_active Application Discontinuation
- 2009-08-31 EP EP09848588.1A patent/EP2484201A4/en not_active Withdrawn
- 2009-08-31 RU RU2012112597/10A patent/RU2012112597A/ru not_active Application Discontinuation
- 2009-08-31 US US13/393,466 patent/US20120233722A1/en not_active Abandoned
-
2020
- 2020-02-27 US US16/802,870 patent/US20200187438A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6034307A (en) * | 1997-12-18 | 2000-03-07 | Pannar Seed Limited | Hybrid sunflower plant and seed pan 9612 |
WO2008135296A2 (en) * | 2007-06-13 | 2008-11-13 | Syngenta Participations Ag | New hybrid system for brassica napus |
Non-Patent Citations (2)
Title |
---|
LINKE, B. ET AL.: "Mitochondrial effects on flower and pollen development.", MITOCHONDRION, vol. 5, no. 6, 2005, pages 389 - 402, XP027686442 * |
See also references of EP2484201A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP2484201A4 (en) | 2013-04-24 |
BR112012004371A2 (pt) | 2019-09-24 |
EP2484201A1 (en) | 2012-08-08 |
US20120233722A1 (en) | 2012-09-13 |
UA105801C2 (uk) | 2014-06-25 |
RU2012112597A (ru) | 2013-10-10 |
US20200187438A1 (en) | 2020-06-18 |
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