A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites

I examined genetic variation for two populations of Black-crowned Night Herons using a 467 base pair region of the mitochondrial DNA. One population inhabits an environment highly impacted by industrial waste, heavy metals, and urbanization; while the other, a reference population, comes from a cont...

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Bibliographic Details
Main Author:	Bernard, Danielle Summer
Other Authors:	Arnold, Keith A
Format:	Others
Language:	en_US
Published:	Texas A&M University 2007
Subjects:	Black-crowned Night Herons Genetic Contamination
Online Access:	http://hdl.handle.net/1969.1/4698

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record_format	oai_dc
spelling	ndltd-tamu.edu-oai-repository.tamu.edu-1969.1-46982013-01-08T10:38:34ZA comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sitesBernard, Danielle SummerBlack-crowned Night HeronsGenetic ContaminationI examined genetic variation for two populations of Black-crowned Night Herons using a 467 base pair region of the mitochondrial DNA. One population inhabits an environment highly impacted by industrial waste, heavy metals, and urbanization; while the other, a reference population, comes from a contaminant-free area. I observed a total of 10 haplotypes, three of which the two populations share. One individual from the contaminated site was ostensibly heteroplasmic. I found no evidence of significant genetic differentiation between the two populations. Coalescent simulation results provided evidence that both populations have undergone or are currently undergoing population expansion. The results of the biological marker I developed showed a high diversity for the ND-6 gene, making it a useful biomarker of population effects.Texas A&M UniversityArnold, Keith A2007-04-25T20:03:07Z2007-04-25T20:03:07Z2005-122007-04-25T20:03:07ZBookThesisElectronic Thesistext181768 byteselectronicapplication/pdfborn digitalhttp://hdl.handle.net/1969.1/4698en_US
collection	NDLTD
language	en_US
format	Others
sources	NDLTD
topic	Black-crowned Night Herons Genetic Contamination
spellingShingle	Black-crowned Night Herons Genetic Contamination Bernard, Danielle Summer A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites
description	I examined genetic variation for two populations of Black-crowned Night Herons using a 467 base pair region of the mitochondrial DNA. One population inhabits an environment highly impacted by industrial waste, heavy metals, and urbanization; while the other, a reference population, comes from a contaminant-free area. I observed a total of 10 haplotypes, three of which the two populations share. One individual from the contaminated site was ostensibly heteroplasmic. I found no evidence of significant genetic differentiation between the two populations. Coalescent simulation results provided evidence that both populations have undergone or are currently undergoing population expansion. The results of the biological marker I developed showed a high diversity for the ND-6 gene, making it a useful biomarker of population effects.
author2	Arnold, Keith A
author_facet	Arnold, Keith A Bernard, Danielle Summer
author	Bernard, Danielle Summer
author_sort	Bernard, Danielle Summer
title	A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites
title_short	A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites
title_full	A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites
title_fullStr	A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites
title_full_unstemmed	A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites
title_sort	comparison of genetic variation between black-crowned night heron (nycticorax nycticorax) populations from contaminated and reference sites
publisher	Texas A&M University
publishDate	2007
url	http://hdl.handle.net/1969.1/4698
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A comparison of genetic variation between Black-Crowned Night Heron (Nycticorax nycticorax) populations from contaminated and reference sites

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