Identification method research of wheat-secale cereale L 1BL/1RS translocation line

Abstract

Secale cereale L is one of the important kindred plants of wheat and has the characteristics of floweriness, multi-powder, eurytopicity, and the like. The 1RS segment of secale cereale L carries resistance genes Lr26, Sr31, Yr9 and Pro8 for resisting leaf rust, stem rust, stripe rust and powdery mildew as well as plant hopper resistant gene Gb2 and a great amount of anti-retrieval genes. The content of soluble fiber of 1BL / 1RS translocation wheat flour is higher than that of ordinary wheat and is beneficial to human body. Related genes of a plurality of excellent traits for increasing the QTL loci, improving the yield traits and increasing the protein content exists on the 1RS. Me1z, Schlegel and Thiele find that partial isogeny relationship exists between 1RS, 1RL, 2RL, 3RS and 5RS and corresponding wheat chromosome arms via ph16 line analysis of addition line, telomere line and the wheat, thereby being capable of producing abnormal addition line, replacement line and translocation line of wheat-secale cereale L. As 1RS can favorably compensate negative effect caused by 1BS defect on the heredity, the wheat 1B / 1R translocation line can be directly applied to wheat breeding. The researched is carried out based thereon.

Description

technical field [0001] The invention relates to the research on the identification method of the wheat-rye 1BL / 1RS translocation line, which belongs to the field of cell biology. Background technique [0002] Rye (Secale cereale L) is one of the important relatives of wheat, which has the characteristics of many flowers, many powders, and wide adaptability (Wu Jinhua, Journal of Wheat Crops, 2005, 25(1): 115-119). The rye 1RS fragment carries the resistance genes Lr26, Sr31, Yr9, Pro8 for leaf rust, stem rust, stripe rust and powdery mildew resistance, planthopper resistance gene Gb2 and a large number of stress resistance genes, 1BL / 1RS translocation wheat flour The soluble fiber content of wheat is higher than that of general wheat, which is beneficial to the human body (Shang Haiying, Southwest Agricultural Journal, 2004, 17(3): 273-277). There are QTL loci for increasing the number of spikelets and genes related to various excellent traits such as increasing yield trait...

AI Technical Summary

Problems solved by technology

[0003] Although it is generally believed that there is a Sec-1 locus encoding ryeine on 1RS, the replacement of 1BS by 1RS has caused the loss of important gene loci Glu-3 and Gli-1 on 1BS, resulting in the baking of 1BL / 1RS translocated wheat flour. Poor roasting quality (Ren Yan, Journal of Wheat Crops, 2006, 26(3): 152-158)

However, it is difficult to breed new varieties to replace all 1BL / 1RS translocation varieties in a short period of time

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