Salmonid Chromosome Evolution as Revealed by a Novel Method for Comparing RADseq Linkage Maps.

ABSTRACT: Whole genome duplication (WGD) can provide material for evolutionary innovation. Family Salmonidae is ideal for studying the effects of WGD as the ancestral salmonid underwent WGD relatively recently, ∼65 Ma, then rediploidized and diversified. Extensive synteny between homologous chromosome arms occurs in extant salmonids, but each species has both conserved and unique chromosome arm fusions and fissions. Assembly of large, outbred eukaryotic genomes can be difficult, but structural rearrangements within such taxa can be investigated using linkage maps. RAD sequencing provides unprecedented ability to generate high-density linkage maps for nonmodel species, but can result in low numbers of homologous markers between species due to phylogenetic distance or differences in library preparatio

SUBMITTER: Sutherland BJG 

PROVIDER: S-EPMC5381510 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature