Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene

Demographic changes during the late Pleistocene-Holocene left signatures in the DNA of contemporary populations. These signatures reveal demographic phenomena like the increase or decrease in effective population size. In this paper we searched for signatures of demographic change in the DNA of the...

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Autores principales: Costa, Carolina L. N., Pérez, Sergio Iván, Louvise, José, Tonhatti, Carlos H., Clemente-Carvalho, Rute B. G., Petry, Ana C., dos Reis, S. F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Antropología
Ancestral Population Dynamics
Coalescence
Bayesian Skyline Plot
Mitochondrial DNA
Last Glacial Maximum
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/119320
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-119320
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Antropología
Ancestral Population Dynamics
Coalescence
Bayesian Skyline Plot
Mitochondrial DNA
Last Glacial Maximum
spellingShingle Antropología
Ancestral Population Dynamics
Coalescence
Bayesian Skyline Plot
Mitochondrial DNA
Last Glacial Maximum
Costa, Carolina L. N.
Pérez, Sergio Iván
Louvise, José
Tonhatti, Carlos H.
Clemente-Carvalho, Rute B. G.
Petry, Ana C.
dos Reis, S. F.
Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene
topic_facet Antropología
Ancestral Population Dynamics
Coalescence
Bayesian Skyline Plot
Mitochondrial DNA
Last Glacial Maximum
description Demographic changes during the late Pleistocene-Holocene left signatures in the DNA of contemporary populations. These signatures reveal demographic phenomena like the increase or decrease in effective population size. In this paper we searched for signatures of demographic change in the DNA of the Neotropical freshwater fish Poecilia vivipara . Also, we investigated whether demographic changes are correlated with palaeoclimatic events of the late Pleistocene-Holocene, in particular, if changes in effective population size are correlated with expansion and contraction of available habitats, induced by global ice-volume changes and sea-level fluctuations. We used Bayesian Skyline Plot (BSP) analysis with sequences from the mitochondrial gene cytochrome b to estimate the ancestral demography of the Neotropical freshwater fish P. vivipara . To test the assumptions of neutrality and absence of population structure we used Tajima’s D and Spatial Analysis of Molecular Variance (SAMOVA), respectively. Effective population size of P. vivipara remained stable until 75,000 years ago, increased by 10-fold reaching a maximum at approximately 25,000 years ago, then suddenly declined at the Pleistocene- Holocene boundary. Variation in effective population size in P. vivipara correlates with expansion and contraction of habitats induced by sea-level fluctuations, caused by the advance and retreat of ice sheets during the Last Glacial Maximum (LGM).
format Articulo
Articulo
author Costa, Carolina L. N.
Pérez, Sergio Iván
Louvise, José
Tonhatti, Carlos H.
Clemente-Carvalho, Rute B. G.
Petry, Ana C.
dos Reis, S. F.
author_facet Costa, Carolina L. N.
Pérez, Sergio Iván
Louvise, José
Tonhatti, Carlos H.
Clemente-Carvalho, Rute B. G.
Petry, Ana C.
dos Reis, S. F.
author_sort Costa, Carolina L. N.
title Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene
title_short Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene
title_full Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene
title_fullStr Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene
title_full_unstemmed Demographic Expansion and Contraction in a Neotropical Fish during the Late Pleistocene-Holocene
title_sort demographic expansion and contraction in a neotropical fish during the late pleistocene-holocene
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/119320
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