Mutation rate analysis via parent-progeny sequencing of the perennial peach. II. No evidence for recombination-associated mutation.
Mutation rate analysis via parent-progeny sequencing of the perennial peach. II. No evidence for recombination-associated mutation.
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通过多年生桃子的亲子测序进行突变率分析。
DOI:
10.1098/rspb.2016.1785
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发表时间:
2016-10-26
期刊:
影响因子:
--
通讯作者:
Hurst LD
中科院分区:
文献类型:
--
作者:
Wang L;Zhang Y;Qin C;Tian D;Yang S;Hurst LD
Mutation rates and recombination rates vary between species and between regions within a genome. What are the determinants of these forms of variation? Prior evidence has suggested that the recombination might be mutagenic with an excess of new mutations in the vicinity of recombination break points. As it is conjectured that domesticated taxa have higher recombination rates than wild ones, we expect domesticated taxa to have raised mutation rates. Here, we use parent–offspring sequencing in domesticated and wild peach to ask (i) whether recombination is mutagenic, and (ii) whether domesticated peach has a higher recombination rate than wild peach. We find no evidence that domesticated peach has an increased recombination rate, nor an increased mutation rate near recombination events. If recombination is mutagenic in this taxa, the effect is too weak to be detected by our analysis. While an absence of recombination-associated mutation might explain an absence of a recombination–heterozygozity correlation in peach, we caution against such an interpretation.
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