Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome

Comparative chromosome maps investigating sex chromosomal linkage groups in amniotes and microsatellite repeat motifs of a male house gecko lizard (<i>Hemidactylus frenatus</i>, HFR) and a flat-tailed house gecko lizard (<i>H. platyurus</i>, HPL) of unknown sex were examined...

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Autores principales:	Worapong Singchat, Thitipong Panthum, Syed Farhan Ahmad, Sudarath Baicharoen, Narongrit Muangmai, Prateep Duengkae, Darren K. Griffin, Kornsorn Srikulnath
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	chromosome map gecko lizard bacterial artificial chromosome fusion super-sex chromosome evolution Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/df32b91179a4464b9eed0a32ce754384
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spelling	oai:doaj.org-article:df32b91179a4464b9eed0a32ce7543842021-11-25T17:09:54ZRemnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome10.3390/cells101129692073-4409https://doaj.org/article/df32b91179a4464b9eed0a32ce7543842021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4409/10/11/2969https://doaj.org/toc/2073-4409Comparative chromosome maps investigating sex chromosomal linkage groups in amniotes and microsatellite repeat motifs of a male house gecko lizard (<i>Hemidactylus frenatus</i>, HFR) and a flat-tailed house gecko lizard (<i>H. platyurus</i>, HPL) of unknown sex were examined using 75 bacterial artificial chromosomes (BACs) from chicken and zebra finch genomes. No massive accumulations of microsatellite repeat motifs were found in either of the gecko lizards, but 10 out of 13 BACs mapped on HPL chromosomes were associated with other amniote sex chromosomes. Hybridization of the same BACs onto multiple different chromosome pairs suggested transitions to sex chromosomes across amniotes. No BAC hybridization signals were found on HFR chromosomes. However, HFR diverged from HPL about 30 million years ago, possibly due to intrachromosomal rearrangements occurring in the HFR lineage. By contrast, heterochromatin likely reshuffled patterns between HPL and HFR, as observed from C-positive heterochromatin distribution. Six out of ten BACs showed partial homology with squamate reptile chromosome 2 (SR2) and snake Z and/or W sex chromosomes. The gecko lizard showed shared unrelated sex chromosomal linkages—the remnants of a super-sex chromosome. A large ancestral super-sex chromosome showed a correlation between SR2 and snake W sex chromosomes.Worapong SingchatThitipong PanthumSyed Farhan AhmadSudarath BaicharoenNarongrit MuangmaiPrateep DuengkaeDarren K. GriffinKornsorn SrikulnathMDPI AGarticlechromosome mapgecko lizardbacterial artificial chromosomefusionsuper-sex chromosomeevolutionBiology (General)QH301-705.5ENCells, Vol 10, Iss 2969, p 2969 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	chromosome map gecko lizard bacterial artificial chromosome fusion super-sex chromosome evolution Biology (General) QH301-705.5
spellingShingle	chromosome map gecko lizard bacterial artificial chromosome fusion super-sex chromosome evolution Biology (General) QH301-705.5 Worapong Singchat Thitipong Panthum Syed Farhan Ahmad Sudarath Baicharoen Narongrit Muangmai Prateep Duengkae Darren K. Griffin Kornsorn Srikulnath Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome
description	Comparative chromosome maps investigating sex chromosomal linkage groups in amniotes and microsatellite repeat motifs of a male house gecko lizard (<i>Hemidactylus frenatus</i>, HFR) and a flat-tailed house gecko lizard (<i>H. platyurus</i>, HPL) of unknown sex were examined using 75 bacterial artificial chromosomes (BACs) from chicken and zebra finch genomes. No massive accumulations of microsatellite repeat motifs were found in either of the gecko lizards, but 10 out of 13 BACs mapped on HPL chromosomes were associated with other amniote sex chromosomes. Hybridization of the same BACs onto multiple different chromosome pairs suggested transitions to sex chromosomes across amniotes. No BAC hybridization signals were found on HFR chromosomes. However, HFR diverged from HPL about 30 million years ago, possibly due to intrachromosomal rearrangements occurring in the HFR lineage. By contrast, heterochromatin likely reshuffled patterns between HPL and HFR, as observed from C-positive heterochromatin distribution. Six out of ten BACs showed partial homology with squamate reptile chromosome 2 (SR2) and snake Z and/or W sex chromosomes. The gecko lizard showed shared unrelated sex chromosomal linkages—the remnants of a super-sex chromosome. A large ancestral super-sex chromosome showed a correlation between SR2 and snake W sex chromosomes.
format	article
author	Worapong Singchat Thitipong Panthum Syed Farhan Ahmad Sudarath Baicharoen Narongrit Muangmai Prateep Duengkae Darren K. Griffin Kornsorn Srikulnath
author_facet	Worapong Singchat Thitipong Panthum Syed Farhan Ahmad Sudarath Baicharoen Narongrit Muangmai Prateep Duengkae Darren K. Griffin Kornsorn Srikulnath
author_sort	Worapong Singchat
title	Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome
title_short	Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome
title_full	Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome
title_fullStr	Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome
title_full_unstemmed	Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome
title_sort	remnant of unrelated amniote sex chromosomal linkage sharing on the same chromosome in house gecko lizards, providing a better understanding of the ancestral super-sex chromosome
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/df32b91179a4464b9eed0a32ce754384
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Remnant of Unrelated Amniote Sex Chromosomal Linkage Sharing on the Same Chromosome in House Gecko Lizards, Providing a Better Understanding of the Ancestral Super-Sex Chromosome

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