期刊
CHROMOSOME RESEARCH
卷 30, 期 2-3, 页码 229-239出版社
SPRINGER
DOI: 10.1007/s10577-022-09687-4
关键词
Chromosome drive; Nondisjunction; Supernumerary B chromosome; Asymmetric cell division
资金
- NSF [IOS-1545780]
- DFG [HO 1779/301, HE9114/1-1]
- Projekt DEAL
B chromosomes, also known as supernumerary chromosomes, are dispensable elements in the genome of many plants, animals, and fungi. This study summarizes the findings of the drive process of plant B chromosomes, focusing on maize and rye.
B chromosomes, also known as supernumerary chromosomes, are dispensable elements in the genome of many plants, animals, and fungi. Many B chromosomes have evolved one or more drive mechanisms to transmit themselves at a higher frequency than predicted by Mendelian genetics, and these mechanisms counteract the tendency of non-essential genetic elements to be lost over time. The frequency of Bs in a population results from a balance between their effect on host fitness and their transmission rate. Here, we will summarize the findings of the drive process of plant B chromosomes, focusing on maize and rye.
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