B chromosomes of multiple species have intense evolutionary dynamics and accumulated genes related to important biological processes.

ABSTRACT:

Background

One of the biggest challenges in chromosome biology is to understand the occurrence and complex genetics of the extra, non-essential karyotype elements, commonly known as supernumerary or B chromosomes (Bs). The non-Mendelian inheritance and non-pairing abilities of B chromosomes make them an interesting model for genomics studies, thus bringing to bear different questions about their genetic composition, evolutionary survival, maintenance and functional role inside the cell. This study uncovers these phenomena in multiple species that we considered as representative organisms of both vertebrate and invertebrate models for B chromosome analysis.

Results

We sequenced the genomes of three animal species including two fishes Astyanax mexicanus and Astyanax correntinu

SUBMITTER: Ahmad SF 

PROVIDER: S-EPMC7509943 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature