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Influence of aegilops tauschii D-group chromosome on a plurality of wheat yield traits

A technology of goat grass and chromosomes, applied in the field of crop genetics and breeding, can solve the problems of few reports, achieve the effect of enriching genetic diversity and improving resistance

Inactive Publication Date: 2010-06-16
李祥
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Problems solved by technology

[0006] At present, in the genetic improvement of wheat, goat grass is mainly used to improve the resistance of wheat, and there are few reports on other traits

Method used

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  • Influence of aegilops tauschii D-group chromosome on a plurality of wheat yield traits
  • Influence of aegilops tauschii D-group chromosome on a plurality of wheat yield traits
  • Influence of aegilops tauschii D-group chromosome on a plurality of wheat yield traits

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] 1. Character investigation

[0028] When investigating BC1F1, 120 individual plants were randomly selected in the field; when investigating BC1F2, 432 individual plants were randomly selected for investigation. The traits such as plant height, number of panicles per plant, length of panicle, number of spikelets per panicle, number of grains per panicle, yield per plant and 1000-grain weight were investigated respectively, and the survey results were statistically analyzed.

[0029] 2. From the investigation results of the two generations, it can be seen that compared with the parent PH85-16, several main yield traits investigated in the two populations all appeared to exceed the types of PH85-16. The parent Am6 had obvious positive effects on the above traits of the hybrid offspring. In addition, dwarf types were also isolated.

[0030] Compared with BC1F1, after one generation of self-crossing, many original heterozygous loci became homozygous, and the additive effec...

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Abstract

Aegilops tauschii is mainly used for enhancing wheat resistance in genetic improvement. The population is a backcross population of common wheat variety and an amphidiploid which is synthesized from aegilops tauschii and durum wheat, an aegilops tauschii D-group chromosome gene is carried, and the genetic diversity of the wheat D-group chromosome gene is enriched. The sites of the D-group chromosome controlling yield traits are located, and the good gene of the aegilops tauschii can be identified to determine the utilization value of the aegilops tauschii D chromosome group in the genetic improvement, thereby providing basis for effective utilization.

Description

technical field [0001] A. roughis is mainly used in improving the resistance of wheat in the genetic improvement of wheat. The population used in the present invention is the backcross population of amphidiploid Am6 synthesized by A. roughis and durum wheat and common wheat varieties. The D genome chromosome genes enrich the genetic diversity of the wheat D genome; the location of the loci controlling the yield traits of the D genome can identify the excellent genes from A. tachyphylla, so as to clarify the role of the D genome in wheat. The utilization value in genetic improvement, so as to provide a basis for its effective use, belongs to the field of crop genetics and breeding. Background technique [0002] With the development of agricultural production and the improvement of people's living standards, higher requirements are put forward for the yield, quality and resistance of wheat. In order to enrich the genetic basis of wheat and further improve the disease resistan...

Claims

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Application Information

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IPC IPC(8): A01H1/00A01H5/00
Inventor 李祥
Owner 李祥
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