作者
Nathaniel B Edelman, Paul B Frandsen, Miriam Miyagi, Bernardo Clavijo, John Davey, Rebecca B Dikow, Gonzalo García-Accinelli, Steven M Van Belleghem, Nick Patterson, Daniel E Neafsey, Richard Challis, Sujai Kumar, Gilson RP Moreira, Camilo Salazar, Mathieu Chouteau, Brian A Counterman, Riccardo Papa, Mark Blaxter, Robert D Reed, Kanchon K Dasmahapatra, Marcus Kronforst, Mathieu Joron, Chris D Jiggins, W Owen McMillan, Federica Di Palma, Andrew J Blumberg, John Wakeley, David Jaffe, James Mallet
发表日期
2019/11/1
期刊
Science
卷号
366
期号
6465
页码范围
594-599
出版商
American Association for the Advancement of Science
简介
We used 20 de novo genome assemblies to probe the speciation history and architecture of gene flow in rapidly radiating Heliconius butterflies. Our tests to distinguish incomplete lineage sorting from introgression indicate that gene flow has obscured several ancient phylogenetic relationships in this group over large swathes of the genome. Introgressed loci are underrepresented in low-recombination and gene-rich regions, consistent with the purging of foreign alleles more tightly linked to incompatibility loci. Here, we identify a hitherto unknown inversion that traps a color pattern switch locus. We infer that this inversion was transferred between lineages by introgression and is convergent with a similar rearrangement in another part of the genus. These multiple de novo genome sequences enable improved understanding of the importance of introgression and selective processes in adaptive radiation.
学术搜索中的文章
NB Edelman, PB Frandsen, M Miyagi, B Clavijo… - Science, 2019