Is speciation driven by cycles of mixing and isolation?

• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2019,（2）
• 页码范围: 291-292
• 页数: 2页
• 语种: 英文
• DOI: 10.1093/nsr/nwy113

摘要

He et al.[1] describe genetic divergence between mangrove species that are distributed across the Straits of Malacca.Divergence varies much more across the genome than in a simple null model of strict allopatry.Such heterogeneity (often termed 'genomic islands of speciation') can be generated by population structure: populations that exchange genes at a low rate will show wide variability in divergence, depending on when migration events occurred on the ancestral lineages that trace backfrom each section ofgenome.