Cleistogamy method for broad beans and application thereof

A technology for flower utensils and cloud beans, applied in the fields of application, botanical equipment and methods, plant genetic improvement, etc., can solve the difficulties in germplasm resources research, technical engineering of variety improvement, and breeding and production of fine varieties, and has relatively large technical and facilities. investment and other issues

Inactive Publication Date: 2014-01-29
FOOD CROPS RES INST YUNNAN ACADEMY OF AGRI SCI
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] The pollination habit of broad bean species belongs to the type of heterogeneous flowers, and its outcrossing rate is between 25.75-56.14%, which requires that the species maintenance should be carried out under the condition of strictly controlling

Method used

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  • Cleistogamy method for broad beans and application thereof
  • Cleistogamy method for broad beans and application thereof

Examples

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Effect test

example 1

[0049] The outcrossing rate of broad bean crops is 3-27%, which is a limiting factor for germplasm evaluation, variety improvement research, seed production and service life of newly bred varieties. Research on the improvement of broad bean pollination system has always been a subject of this crop research, mainly starting from the mutation improvement of flower organ structure, and obtaining the effect of reducing the outcrossing rate due to the contact pollination of insects (bees) due to flower organ structure obstacles. "Yundou 470" is a strain with an outcrossing rate of less than 5% by successfully introducing cleistogamous pollination variant flower structure traits through cross breeding programs, and the population traits are homozygous and neat. This variety is bred by hybridization with the "8137 Flower" material as the parent. The hybridization was done in 1991, and superior single plants were selected from the hybrid progeny in 1994. After a total of more than 10 ...

example 2

[0052] "Yundou Lvxin 1" broad bean variety is a strain with an outcrossing rate of less than 5% through the successful introduction of cleistogamous pollination variant flower structure traits through a cross-breeding program. The male parent of this variety is "8137 Flower" specific The material, the female parent is green cotyledon special material. After analysis, its "cotyledon green, cleistophyte fertilization" is the most unique trait in this kind of crops. After more than 10 years of various types of experiments, this strain has found that its outcrossing rate is less than 5%. The traits are homozygous and neat; "Yundou Luxin 1" is consistent in terms of plant morphology, flower structure, and cotyledon color. The appearance of this variety in the field is relatively consistent, and its flower color and flower shape have inherited the characteristics of the male parent (cleistogamous fertilization). At the same time, it also has the excellent trait of green cotyledons of...

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Abstract

The invention relates to the breeding field of crops, in particular to broad bean. 8137 in the 8137 floral material cleistogamy technology studied in the project has special floral organ structure and is a rare cleistogamy type; the sizes of vexilla and carina of the 8137 are the same as those of a floral organ of a common broad bean plant, but ala of the 8137 is remarkably degraded and reduced and is only 20% of the floral organ of the common broad bean plant in size; and the degraded ala closely clasps the carina, in this way, a pollination vector insect cannot stays at the floral organ for collecting honey and getting pollen normally, and pollen is transmitted between flowers and between floral organs of the plants, so that outcrossing is caused. A cleistogamy material is provided with an 8137 floral organ structure; the technology using the 8137 material comprises genetic research, breed improvement and other applications. The cleistogamy character of the broad bean is not reported yet at home at present, and no application of the cleistogamy varieties and materials to the production exists. The new variety (kidney bean 8137) bred by the project has the cleistogamy character.

Description

[0001] technical field [0002] Vicia faba is the only cultivated species in the Fabaceae family. broad bean( Vicia faba ), the English name is Horsebean, Broadbean, Faba Bean, which is an annual herbaceous plant sown in spring or sown in autumn. Broad beans belong to the leguminosae (Leguminosae), Papilionoideae (Papilionoideae), broad bean family ( Vicia L . ). It is the best isolated species in this genus. Vicia and Vegetables ( Vicia L . ) There are no examples of successful hybridization among other species. Compared with other species in the genus Vicia, Vicia faba has larger chromosomes and a larger amount of DNA, but the number of chromosomes is less 2n=12, and other species 2n=14. [0003] Broad beans originated from Southwest Asia to the Mediterranean region, and are one of the oldest cultivated crops in the world, with a cultivation history of more than 4,000 years. The introduction of broad beans to Asia was the earliest in my country, and it was first i...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 包世英王丽萍吕梅媛何玉华杨峰郑爱清
Owner FOOD CROPS RES INST YUNNAN ACADEMY OF AGRI SCI
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