Parapatric speciation in three islands: Dynamics of geographical configuration of allele sharing

Ryo Yamaguchi, Yoh Iwasa

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

We studied the time to speciation by geographical isolation for a species living on three islands connected by rare migration. We assumed that incompatibility was controlled by a number of quantitative loci and that individuals differing in loci by more than a threshold did not mix genetically with each other. For each locus, we defined the geographical configuration (GC), which specifies islands with common alleles, and traced the stochastic transitions between different GCs. From these results, we calculated the changes in genetic distances. As a single migration event provides an opportunity for transitions in multiple loci, the GCs of different loci are correlated, which can be evaluated by constructing the stochastic differential equations of the number of loci with different GCs. Our model showed that the low number of incompatibility loci facilitates parapatric speciation and that migrants arriving as a group shorten the waiting time to speciation compared with the same number of migrants arriving individually. We also discuss how speciation rate changes with geographical structure.

本文言語英語
論文番号160819
ジャーナルRoyal Society Open Science
4
2
DOI
出版ステータス出版済み - 2 22 2017

All Science Journal Classification (ASJC) codes

  • 一般

フィンガープリント

「Parapatric speciation in three islands: Dynamics of geographical configuration of allele sharing」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル