Examining the Effects of Temperature on Recombination in Wheat

被引：14

作者：

Coulton, Alexander ^{[1
]}

Burridge, Amanda J. ^{[1
]}

Edwards, Keith J. ^{[1
]}

机构：

[1] Univ Bristol, Sch Biol Sci, Bristol, Avon, England

来源：

FRONTIERS IN PLANT SCIENCE | 2020年 / 11卷

基金：

英国生物技术与生命科学研究理事会;

关键词：

recombination; temperature; meiosis; wheat; genotyping; HEXAPLOID WHEAT; MEIOSIS; LANDSCAPE; GROWTH; ARRAY;

D O I：

10.3389/fpls.2020.00230

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Meiotic recombination plays a crucial role in the generation of new varieties. The effectiveness of recombination is limited by the distribution of crossover events, which in wheat and many other crops is skewed toward the distal regions of the chromosomes. Whole-genome sequencing of wheat has revealed that there are numerous important genes in the pericentromeric regions, which are inaccessible to manipulation due to the lack of crossover events. Studies in barley have shown that the distribution of recombination events can be shifted toward the centromeres by increasing temperature during meiosis. Here we present an analysis of the effects of temperature on the distribution and frequency of recombination events in wheat. Our data show that although increased temperature during meiosis does cause an inward shift in recombination distribution for some chromosomes, its overall utility is limited, with many genes remaining highly linked.

引用

页数：13

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