Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.

Sex chromosome meiotic drive has been suggested as a cause of several evolutionary genetic phenomena, including genomic conflicts that give rise to reproductive isolation between new species. In this paper we present a population genetic analysis of X chromosome drive in the stalk-eyed fly, Teleopsi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sarah J Christianson, Cara L Brand, Gerald S Wilkinson
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2ba91c0301c54726b3ca5255db9f1ad8
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2ba91c0301c54726b3ca5255db9f1ad8
record_format	dspace
spelling	oai:doaj.org-article:2ba91c0301c54726b3ca5255db9f1ad82021-11-18T07:34:45ZReduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.1932-620310.1371/journal.pone.0027254https://doaj.org/article/2ba91c0301c54726b3ca5255db9f1ad82011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22087274/?tool=EBIhttps://doaj.org/toc/1932-6203Sex chromosome meiotic drive has been suggested as a cause of several evolutionary genetic phenomena, including genomic conflicts that give rise to reproductive isolation between new species. In this paper we present a population genetic analysis of X chromosome drive in the stalk-eyed fly, Teleopsis dalmanni, to determine how this natural polymorphism influences genetic diversity. We analyzed patterns of DNA sequence variation at two X-linked regions (comprising 1325 bp) approximately 50 cM apart and one autosomal region (comprising 921 bp) for 50 males, half of which were collected in the field from one of two allopatric locations and the other half were derived from lab-reared individuals with known brood sex ratios. These two populations are recently diverged but exhibit partial postzygotic reproductive isolation, i.e. crosses produce sterile hybrid males and fertile females. We find no nucleotide or microsatellite variation on the drive X chromosome, whereas the same individuals show levels of variation at autosomal regions that are similar to field-collected flies. Furthermore, one field-caught individual collected 10 years previously had a nearly identical X haplotype to the drive X, and is over 2% divergent from other haplotypes sampled from the field. These results are consistent with a selective sweep that has removed genetic variation from much of the drive X chromosome. We discuss how this finding may relate to the rapid evolution of postzygotic reproductive isolation that has been documented for these flies.Sarah J ChristiansonCara L BrandGerald S WilkinsonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 11, p e27254 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sarah J Christianson Cara L Brand Gerald S Wilkinson Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.
description	Sex chromosome meiotic drive has been suggested as a cause of several evolutionary genetic phenomena, including genomic conflicts that give rise to reproductive isolation between new species. In this paper we present a population genetic analysis of X chromosome drive in the stalk-eyed fly, Teleopsis dalmanni, to determine how this natural polymorphism influences genetic diversity. We analyzed patterns of DNA sequence variation at two X-linked regions (comprising 1325 bp) approximately 50 cM apart and one autosomal region (comprising 921 bp) for 50 males, half of which were collected in the field from one of two allopatric locations and the other half were derived from lab-reared individuals with known brood sex ratios. These two populations are recently diverged but exhibit partial postzygotic reproductive isolation, i.e. crosses produce sterile hybrid males and fertile females. We find no nucleotide or microsatellite variation on the drive X chromosome, whereas the same individuals show levels of variation at autosomal regions that are similar to field-collected flies. Furthermore, one field-caught individual collected 10 years previously had a nearly identical X haplotype to the drive X, and is over 2% divergent from other haplotypes sampled from the field. These results are consistent with a selective sweep that has removed genetic variation from much of the drive X chromosome. We discuss how this finding may relate to the rapid evolution of postzygotic reproductive isolation that has been documented for these flies.
format	article
author	Sarah J Christianson Cara L Brand Gerald S Wilkinson
author_facet	Sarah J Christianson Cara L Brand Gerald S Wilkinson
author_sort	Sarah J Christianson
title	Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.
title_short	Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.
title_full	Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.
title_fullStr	Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.
title_full_unstemmed	Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.
title_sort	reduced polymorphism associated with x chromosome meiotic drive in the stalk-eyed fly teleopsis dalmanni.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/2ba91c0301c54726b3ca5255db9f1ad8
work_keys_str_mv	AT sarahjchristianson reducedpolymorphismassociatedwithxchromosomemeioticdriveinthestalkeyedflyteleopsisdalmanni AT caralbrand reducedpolymorphismassociatedwithxchromosomemeioticdriveinthestalkeyedflyteleopsisdalmanni AT geraldswilkinson reducedpolymorphismassociatedwithxchromosomemeioticdriveinthestalkeyedflyteleopsisdalmanni
_version_	1718423211804196864

Reduced polymorphism associated with X chromosome meiotic drive in the stalk-eyed fly Teleopsis dalmanni.

Ejemplares similares