PromethION Sequencing and Assembly of the Genome of Micropoecilia picta, a Fish with a Highly Degenerated Y Chromosome.

ABSTRACT: We here describe sequencing and assembly of both the autosomes and the sex chromosome in Micropoecilia picta, the closest related species to the guppy, Poecilia reticulata. Poecilia (Micropoecilia) picta is a close outgroup for studying the guppy, an important organism for studies in evolutionary ecology and in sex chromosome evolution. The guppy XY pair (LG12) has long been studied as a test case for the importance of sexually antagonistic variants in selection for suppressed recombination between Y and X chromosomes. The guppy Y chromosome is not degenerated, but appears to carry functional copies of all genes that are present on its X counterpart. The X chromosomes of M. picta (and its relative Micropoecilia parae) are homologous to the guppy XY pair, but their Y chromosomes are highly

SUBMITTER: Charlesworth D 

PROVIDER: S-EPMC8449826 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature