Little evidence for switches to environmental sex determination and turnover of sex chromosomes in lacertid lizards

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F19%3A00506135" target="_blank" >RIV/67985904:_____/19:00506135 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/19:10407916

Result on the web

<a href="https://www.nature.com/articles/s41598-019-44192-5" target="_blank" >https://www.nature.com/articles/s41598-019-44192-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-019-44192-5" target="_blank" >10.1038/s41598-019-44192-5</a>

Result language

angličtina

Original language name

Little evidence for switches to environmental sex determination and turnover of sex chromosomes in lacertid lizards

Original language description

Amniotes possess variability in sex determination, from environmental sex determination (ESD), where no sex chromosomes are present, to genotypic sex determination (GSD) with highly differentiated sex chromosomes. Some evolutionary scenarios postulate high stability of differentiated sex chromosomes and rare transitions from GSD to ESD. However, sex chromosome turnovers and two independent transitions from highly differentiated ZZ/ZW sex chromosomes to ESD were previously reported in the lacertid lizards. Here, we examined the homology of sex chromosomes in the wide phylogenetic spectrum of lacertids and their outgroups by comparing gene copy numbers between sexes in genes previously found to be Z-specific in some lacertids. Our current sampling covers 45 species from 26 genera including lineages supposed to possess a derived sex determining systems. We found that all tested lacertids share homologous differentiated ZZ/ZW sex chromosomes, which were present already in their common ancestor living around 85 million years ago. These differentiated sex chromosomes are not present in amphisbaenians and teiid lizards, the close relatives of lacertids. Our study demonstrates how inaccuracies in data can influence the outcome of phylogenetic reconstructions of evolution of sex determination, in this case they overestimated the number of shifts from GSD to ESD and the rate in turnovers of sex chromosomes.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10603 - Genetics and heredity (medical genetics to be 3)

Project

<a href="/en/project/GA17-22604S" target="_blank" >GA17-22604S: The lizard perspective on mammalian sex chromosomes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

May 24

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

7832

UT code for WoS article

000468859400047

EID of the result in the Scopus database

2-s2.0-85066930392