The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.

Reptiles have a wide diversity of sex-determining mechanisms and types of sex chromosomes. Turtles exhibit temperature-dependent sex determination and genotypic sex determination, with male heterogametic (XX/XY) and female heterogametic (ZZ/ZW) sex chromosomes. Identification of sex chromosomes in m...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Taiki Kawagoshi, Yoshinobu Uno, Chizuko Nishida, Yoichi Matsuda
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/24e0b525dc304f43a46b9e36439f22df
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:24e0b525dc304f43a46b9e36439f22df
record_format	dspace
spelling	oai:doaj.org-article:24e0b525dc304f43a46b9e36439f22df2021-11-25T06:04:44ZThe Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.1932-620310.1371/journal.pone.0105315https://doaj.org/article/24e0b525dc304f43a46b9e36439f22df2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25121779/?tool=EBIhttps://doaj.org/toc/1932-6203Reptiles have a wide diversity of sex-determining mechanisms and types of sex chromosomes. Turtles exhibit temperature-dependent sex determination and genotypic sex determination, with male heterogametic (XX/XY) and female heterogametic (ZZ/ZW) sex chromosomes. Identification of sex chromosomes in many turtle species and their comparative genomic analysis are of great significance to understand the evolutionary processes of sex determination and sex chromosome differentiation in Testudines. The Mexican giant musk turtle (Staurotypus triporcatus, Kinosternidae, Testudines) and the giant musk turtle (Staurotypus salvinii) have heteromorphic XY sex chromosomes with a low degree of morphological differentiation; however, their origin and linkage group are still unknown. Cross-species chromosome painting with chromosome-specific DNA from Chinese soft-shelled turtle (Pelodiscus sinensis) revealed that the X and Y chromosomes of S. triporcatus have homology with P. sinensis chromosome 6, which corresponds to the chicken Z chromosome. We cloned cDNA fragments of S. triporcatus homologs of 16 chicken Z-linked genes and mapped them to S. triporcatus and S. salvinii chromosomes using fluorescence in situ hybridization. Sixteen genes were localized to the X and Y long arms in the same order in both species. The orders were also almost the same as those of the ostrich (Struthio camelus) Z chromosome, which retains the primitive state of the avian ancestral Z chromosome. These results strongly suggest that the X and Y chromosomes of Staurotypus turtles are at a very early stage of sex chromosome differentiation, and that these chromosomes and the avian ZW chromosomes share the same origin. Nonetheless, the turtles and birds acquired different systems of heterogametic sex determination during their evolution.Taiki KawagoshiYoshinobu UnoChizuko NishidaYoichi MatsudaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 8, p e105315 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Taiki Kawagoshi Yoshinobu Uno Chizuko Nishida Yoichi Matsuda The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
description	Reptiles have a wide diversity of sex-determining mechanisms and types of sex chromosomes. Turtles exhibit temperature-dependent sex determination and genotypic sex determination, with male heterogametic (XX/XY) and female heterogametic (ZZ/ZW) sex chromosomes. Identification of sex chromosomes in many turtle species and their comparative genomic analysis are of great significance to understand the evolutionary processes of sex determination and sex chromosome differentiation in Testudines. The Mexican giant musk turtle (Staurotypus triporcatus, Kinosternidae, Testudines) and the giant musk turtle (Staurotypus salvinii) have heteromorphic XY sex chromosomes with a low degree of morphological differentiation; however, their origin and linkage group are still unknown. Cross-species chromosome painting with chromosome-specific DNA from Chinese soft-shelled turtle (Pelodiscus sinensis) revealed that the X and Y chromosomes of S. triporcatus have homology with P. sinensis chromosome 6, which corresponds to the chicken Z chromosome. We cloned cDNA fragments of S. triporcatus homologs of 16 chicken Z-linked genes and mapped them to S. triporcatus and S. salvinii chromosomes using fluorescence in situ hybridization. Sixteen genes were localized to the X and Y long arms in the same order in both species. The orders were also almost the same as those of the ostrich (Struthio camelus) Z chromosome, which retains the primitive state of the avian ancestral Z chromosome. These results strongly suggest that the X and Y chromosomes of Staurotypus turtles are at a very early stage of sex chromosome differentiation, and that these chromosomes and the avian ZW chromosomes share the same origin. Nonetheless, the turtles and birds acquired different systems of heterogametic sex determination during their evolution.
format	article
author	Taiki Kawagoshi Yoshinobu Uno Chizuko Nishida Yoichi Matsuda
author_facet	Taiki Kawagoshi Yoshinobu Uno Chizuko Nishida Yoichi Matsuda
author_sort	Taiki Kawagoshi
title	The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
title_short	The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
title_full	The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
title_fullStr	The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
title_full_unstemmed	The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
title_sort	staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/24e0b525dc304f43a46b9e36439f22df
work_keys_str_mv	AT taikikawagoshi thestaurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT yoshinobuuno thestaurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT chizukonishida thestaurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT yoichimatsuda thestaurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT taikikawagoshi staurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT yoshinobuuno staurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT chizukonishida staurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination AT yoichimatsuda staurotypusturtlesandavessharethesameoriginofsexchromosomesbutevolveddifferenttypesofheterogameticsexdetermination
_version_	1718414211708616704

The Staurotypus turtles and aves share the same origin of sex chromosomes but evolved different types of heterogametic sex determination.

Ejemplares similares