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A kind of breeding method of allopolyploid triticale germplasm

An allopolyploid, rye technology, applied in the fields of botanical equipment and methods, plant genetic improvement, application, etc., can solve the problems of male sterility of offspring plants, poor genetic stability of offspring, and false selfing, etc. Simplify steps and procedures, expand the effect of using space

Active Publication Date: 2022-05-10
长沙麦生道生物技术有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the insurmountable hybrid F 0 Low viability, hybrid F 1 Many problems such as male sterility of generation plants, false self-fertilization, and poor genetic stability of offspring

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  • A kind of breeding method of allopolyploid triticale germplasm

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Embodiment Construction

[0016] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] Such as figure 1 As shown, the invention provides a breeding method of allopolyploid triticale germplasm.

[0018] 1) Treat diploid rye (RR) with colchicine to obtain tetraploid rye ZS507 (chromosomal configuration RRRR, 2n=28) after chromosome doubling. The diploid rye (RR) was treated with colchicine to obtain tetraploid rye (RRRR), and the number of diploid rye genomes was increased to tetraploid in order to compare with tetraploid hard When crossing grain wheat, the number of ...

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Abstract

The invention discloses a breeding method of allopolyploid triticale germplasm. The diploid rye whose chromosome configuration is RR is treated with colchicine to obtain chromosome RRRR type tetraploid rye. The RRRR type tetraploid rye is the male parent, and the chromosome AABB type tetraploid durum wheat is the female parent, which is polyploid triticale germplasm resources. The polyploid triticale germplasm obtained through this program combines the dwarf, high-yielding, hard traits of wheat and the resistance to three rusts and powdery mildew of rye, laying the foundation for the breeding of macaroni triticale varieties The foundation expands the utilization space of triticale.

Description

technical field [0001] The invention belongs to the technical field of wheat breeding, and in particular relates to a breeding method of allopolyploid triticale germplasm. Background technique [0002] In 1888, the German breeder Rimpau obtained the wheat-rye hybrid Rimpau for the first time. In 1935, the Swedish geneticist A.Muntzing identified the world's first wheat-rye double diploid system at the cytological level Rimpau is an allo-octoploid triticale. Around 1957, Mr. Bao Wenkui crossed wheat "China Spring" (genome configuration AABBDD) with rye (RR), and the hybrid F 1 After artificial doubling, octoploid triticale (AABBDDRR) was synthesized for the first time in China. In the late 1970s, the University of Manitoba, Canada used tetraploid branched wheat T.Turgidum L. (chromosomal configuration AABB) to hybridize with diploid rye, and the immature embryos of the hybrids synthesized hexaploids after embryo culture. Triticale (AABBRR). The existing domestic hexaploid...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/08A01H1/02
CPCA01H1/08A01H1/02
Inventor 孟凡华游光霞杨丽李桂英刘秉华王增远孙元枢
Owner 长沙麦生道生物技术有限公司
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