Genetic divergence of Chilean long-tailed snake (Philodryas chamissonis) across latitudes: Conservation threats for different lineages

N. Sallaberry-Pincheira, C. F. Garin, D. González-Acuña, M. A. Sallaberry, J. A. Vianna

Resultado de la investigación: Article

15 Citas (Scopus)

Resumen

Aim The Chilean long-tailed snake (Philodryas chamissonis) has a wide distribution across different latitudes and ecosystems in Chile ranging from the south of the Atacama Desert (26° S) to the extremely humid Valdivian temperate rain forest (40° S). Throughout this vast distribution, which is isolated by the Andes mountain range on the east and the Pacific Ocean on the west, there are biogeographical boundaries and large geographical barriers that must have played an important role in the distribution of genetic diversity within this species. This study aimed at elucidating the evolutionary history of P. chamissonis in Chile by analysis of mitochondrial DNA sequences.Location Chile (29°41'-38°23' S).Methods We extracted DNA from 66 tissue samples collected across different latitudes and amplified and sequenced the mitochondrial DNA control region and the NADH dehydrogenase subunit 4 gene for phylogenetic and population analysis.Results Four distinct haplogroups were identified for P. chamissonis. These are highly consistent with a latitudinal geographic pattern, different ecosystems and the increase in topography towards central Chile. Three of the four haplogroups are concentrated in central Chile (33° S latitude) where the highest herpetofaunal diversity of the country is found. The Maipo River acts as historical geographical barrier for the species influenced by Pleistocene glaciation cycles, leading to a marked phylogeographical boundary. A strong population structure was found for the species (Φst = 0.78, P < 0.0001), with a high haplotype diversity (h = 0.97 ± 0.01) and nucleotide diversity (Π = 0.0151 ± 0.0077).Main conclusions At least three evolutionarily significant units (ESUs) were designated for the species, and these should be taken into account for conservation plans. Three of the four haplogroups found within P. chamissonis are already threatened because their distribution along central Chile overlaps with most of the largest cities in the country.

Idioma originalEnglish
Páginas (desde-hasta)152-162
Número de páginas11
PublicaciónDiversity and Distributions
Volumen17
N.º1
DOI
EstadoPublished - ene 2011

Huella dactilar

snake
snakes
Chile
divergence
genetic variation
mitochondrial DNA
ecosystem
glaciation
population structure
Andes region
NADH dehydrogenase
ecosystems
desert
topography
Pleistocene
temperate forests
phylogenetics
DNA
Pacific Ocean
rain forests

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Citar esto

@article{b72b76d4130448838b5a50147e55ca02,
title = "Genetic divergence of Chilean long-tailed snake (Philodryas chamissonis) across latitudes: Conservation threats for different lineages",
abstract = "Aim The Chilean long-tailed snake (Philodryas chamissonis) has a wide distribution across different latitudes and ecosystems in Chile ranging from the south of the Atacama Desert (26° S) to the extremely humid Valdivian temperate rain forest (40° S). Throughout this vast distribution, which is isolated by the Andes mountain range on the east and the Pacific Ocean on the west, there are biogeographical boundaries and large geographical barriers that must have played an important role in the distribution of genetic diversity within this species. This study aimed at elucidating the evolutionary history of P. chamissonis in Chile by analysis of mitochondrial DNA sequences.Location Chile (29°41'-38°23' S).Methods We extracted DNA from 66 tissue samples collected across different latitudes and amplified and sequenced the mitochondrial DNA control region and the NADH dehydrogenase subunit 4 gene for phylogenetic and population analysis.Results Four distinct haplogroups were identified for P. chamissonis. These are highly consistent with a latitudinal geographic pattern, different ecosystems and the increase in topography towards central Chile. Three of the four haplogroups are concentrated in central Chile (33° S latitude) where the highest herpetofaunal diversity of the country is found. The Maipo River acts as historical geographical barrier for the species influenced by Pleistocene glaciation cycles, leading to a marked phylogeographical boundary. A strong population structure was found for the species (Φst = 0.78, P < 0.0001), with a high haplotype diversity (h = 0.97 ± 0.01) and nucleotide diversity (Π = 0.0151 ± 0.0077).Main conclusions At least three evolutionarily significant units (ESUs) were designated for the species, and these should be taken into account for conservation plans. Three of the four haplogroups found within P. chamissonis are already threatened because their distribution along central Chile overlaps with most of the largest cities in the country.",
keywords = "Conservation, Evolutionarily significant unit (ESU), Geographical barrier, Philodryas chamissonis, Phylogeography, Snake",
author = "N. Sallaberry-Pincheira and Garin, {C. F.} and D. Gonz{\'a}lez-Acu{\~n}a and Sallaberry, {M. A.} and Vianna, {J. A.}",
year = "2011",
month = "1",
doi = "10.1111/j.1472-4642.2010.00729.x",
language = "English",
volume = "17",
pages = "152--162",
journal = "Diversity and Distributions",
issn = "1366-9516",
publisher = "Wiley-Blackwell",
number = "1",

}

Genetic divergence of Chilean long-tailed snake (Philodryas chamissonis) across latitudes : Conservation threats for different lineages. / Sallaberry-Pincheira, N.; Garin, C. F.; González-Acuña, D.; Sallaberry, M. A.; Vianna, J. A.

En: Diversity and Distributions, Vol. 17, N.º 1, 01.2011, p. 152-162.

Resultado de la investigación: Article

TY - JOUR

T1 - Genetic divergence of Chilean long-tailed snake (Philodryas chamissonis) across latitudes

T2 - Conservation threats for different lineages

AU - Sallaberry-Pincheira, N.

AU - Garin, C. F.

AU - González-Acuña, D.

AU - Sallaberry, M. A.

AU - Vianna, J. A.

PY - 2011/1

Y1 - 2011/1

N2 - Aim The Chilean long-tailed snake (Philodryas chamissonis) has a wide distribution across different latitudes and ecosystems in Chile ranging from the south of the Atacama Desert (26° S) to the extremely humid Valdivian temperate rain forest (40° S). Throughout this vast distribution, which is isolated by the Andes mountain range on the east and the Pacific Ocean on the west, there are biogeographical boundaries and large geographical barriers that must have played an important role in the distribution of genetic diversity within this species. This study aimed at elucidating the evolutionary history of P. chamissonis in Chile by analysis of mitochondrial DNA sequences.Location Chile (29°41'-38°23' S).Methods We extracted DNA from 66 tissue samples collected across different latitudes and amplified and sequenced the mitochondrial DNA control region and the NADH dehydrogenase subunit 4 gene for phylogenetic and population analysis.Results Four distinct haplogroups were identified for P. chamissonis. These are highly consistent with a latitudinal geographic pattern, different ecosystems and the increase in topography towards central Chile. Three of the four haplogroups are concentrated in central Chile (33° S latitude) where the highest herpetofaunal diversity of the country is found. The Maipo River acts as historical geographical barrier for the species influenced by Pleistocene glaciation cycles, leading to a marked phylogeographical boundary. A strong population structure was found for the species (Φst = 0.78, P < 0.0001), with a high haplotype diversity (h = 0.97 ± 0.01) and nucleotide diversity (Π = 0.0151 ± 0.0077).Main conclusions At least three evolutionarily significant units (ESUs) were designated for the species, and these should be taken into account for conservation plans. Three of the four haplogroups found within P. chamissonis are already threatened because their distribution along central Chile overlaps with most of the largest cities in the country.

AB - Aim The Chilean long-tailed snake (Philodryas chamissonis) has a wide distribution across different latitudes and ecosystems in Chile ranging from the south of the Atacama Desert (26° S) to the extremely humid Valdivian temperate rain forest (40° S). Throughout this vast distribution, which is isolated by the Andes mountain range on the east and the Pacific Ocean on the west, there are biogeographical boundaries and large geographical barriers that must have played an important role in the distribution of genetic diversity within this species. This study aimed at elucidating the evolutionary history of P. chamissonis in Chile by analysis of mitochondrial DNA sequences.Location Chile (29°41'-38°23' S).Methods We extracted DNA from 66 tissue samples collected across different latitudes and amplified and sequenced the mitochondrial DNA control region and the NADH dehydrogenase subunit 4 gene for phylogenetic and population analysis.Results Four distinct haplogroups were identified for P. chamissonis. These are highly consistent with a latitudinal geographic pattern, different ecosystems and the increase in topography towards central Chile. Three of the four haplogroups are concentrated in central Chile (33° S latitude) where the highest herpetofaunal diversity of the country is found. The Maipo River acts as historical geographical barrier for the species influenced by Pleistocene glaciation cycles, leading to a marked phylogeographical boundary. A strong population structure was found for the species (Φst = 0.78, P < 0.0001), with a high haplotype diversity (h = 0.97 ± 0.01) and nucleotide diversity (Π = 0.0151 ± 0.0077).Main conclusions At least three evolutionarily significant units (ESUs) were designated for the species, and these should be taken into account for conservation plans. Three of the four haplogroups found within P. chamissonis are already threatened because their distribution along central Chile overlaps with most of the largest cities in the country.

KW - Conservation

KW - Evolutionarily significant unit (ESU)

KW - Geographical barrier

KW - Philodryas chamissonis

KW - Phylogeography

KW - Snake

UR - http://www.scopus.com/inward/record.url?scp=78649992520&partnerID=8YFLogxK

U2 - 10.1111/j.1472-4642.2010.00729.x

DO - 10.1111/j.1472-4642.2010.00729.x

M3 - Article

AN - SCOPUS:78649992520

VL - 17

SP - 152

EP - 162

JO - Diversity and Distributions

JF - Diversity and Distributions

SN - 1366-9516

IS - 1

ER -