Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Sep 1;7(36):eabe8215. doi: 10.1126/sciadv.abe8215

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 4. — (A) Size distribution of sex-differentiated regions. The size of these regions corresponds to the proportion of the reference genome LG with windows that have more sex-specific SNPs than two times the mean across all windows. (B) Per-species proportion of the chromosome(s) showing sex differentiation and corresponding estimated ages of the sex chromosomal system based on ancestral state reconstructions on a time-calibrated species tree. The degree of differentiation is not associated with the estimated age of origin (pGLS, P = 0.9049, coefficient = 0.0011).