期刊
BIOCHEMICAL SOCIETY TRANSACTIONS
卷 50, 期 4, 页码 1179-1186出版社
PORTLAND PRESS LTD
DOI: 10.1042/BST20220405
关键词
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资金
- UKRI BBSRC strategic long and large (sLola) [BB/N002628/1]
This mini-review discusses the factors associated with restricted crossover formation in wheat, including timing of meiotic events, chromatin organisation, pre-meiotic DNA replication, and dosage of crossover genes, as a means to modulate recombination.
Wheat is a major cereal crop that possesses a large allopolyploid genome formed through hybridisation of tetraploid and diploid progenitors. During meiosis, crossovers (COs) are constrained in number to 1-3 per chromosome pair that are predominantly located towards the chromosome ends. This reduces the probability of advantageous traits recombining onto the same chromosome, thus limiting breeding. Therefore, understanding the underlying factors controlling meiotic recombination may provide strategies to unlock the genetic potential in wheat. In this mini-review, we will discuss the factors associated with restricted CO formation in wheat, such as timing of meiotic events, chromatin organisation, pre-meiotic DNA replication and dosage of CO genes, as a means to modulate recombination.
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