A mitogenomic study on the phylogenetic position of snakes
(2006) In Zoologica Scripta 35(6). p.545-558- Abstract
- Phylogenetic relationships of squamates (lizards, amphisbaenians and snakes) have received considerable attention, although no consensus has been reached concerning some basal divergences. This paper focuses on the Serpentes (snakes), whose phylogenetic position within the Squamata remains uncertain despite a number of morphological and molecular studies. Some mitogenomic studies have suggested a sister-group relationship between snakes and varanid lizards, while other studies have identified snakes and lizards as sister groups. However, recent studies using nuclear data have presented a different scenario, with snakes being more closely related to anguimorph and iguanian lizards. In this mitogenomic study we have examined the above... (More)
- Phylogenetic relationships of squamates (lizards, amphisbaenians and snakes) have received considerable attention, although no consensus has been reached concerning some basal divergences. This paper focuses on the Serpentes (snakes), whose phylogenetic position within the Squamata remains uncertain despite a number of morphological and molecular studies. Some mitogenomic studies have suggested a sister-group relationship between snakes and varanid lizards, while other studies have identified snakes and lizards as sister groups. However, recent studies using nuclear data have presented a different scenario, with snakes being more closely related to anguimorph and iguanian lizards. In this mitogenomic study we have examined the above hypotheses with the inclusion of amphisbaenians, one gekkotan and one acrodont lizard, taxa not represented in previous mitogenomic studies. To this end we have also extended the representation of snakes by sequencing five additional snake genomes: two scolecophidians (Ramphotyphlops australis and Typhlops mirus) two henophidians (Eunectes notaeus and Boa constrictor) and one caenophidian (Elaphe guttata). The phylogenetic analysis recovered snakes and amphisbaenians as sister groups, thereby differing from previous hypotheses. In addition to a discussion on previous morphological and molecular studies in light of the results presented here, the current study also provides some details regarding features of the new snake mitochondrial genomes described. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/384254
- author
- Douglas, Desiree LU ; Janke, Axel LU and Arnason, Ulfur LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Snakes, phylogeny, lizards, serpentes, mitogenomics, mitochondrial, genome
- in
- Zoologica Scripta
- volume
- 35
- issue
- 6
- pages
- 545 - 558
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000241500300001
- scopus:33750308129
- ISSN
- 0300-3256
- DOI
- 10.1111/j.1463-6409.2006.00257.x
- language
- English
- LU publication?
- yes
- id
- 87d6e854-c519-40ab-84fc-2a22d027a671 (old id 384254)
- date added to LUP
- 2016-04-01 16:46:04
- date last changed
- 2022-01-28 22:01:20
@article{87d6e854-c519-40ab-84fc-2a22d027a671,
abstract = {{Phylogenetic relationships of squamates (lizards, amphisbaenians and snakes) have received considerable attention, although no consensus has been reached concerning some basal divergences. This paper focuses on the Serpentes (snakes), whose phylogenetic position within the Squamata remains uncertain despite a number of morphological and molecular studies. Some mitogenomic studies have suggested a sister-group relationship between snakes and varanid lizards, while other studies have identified snakes and lizards as sister groups. However, recent studies using nuclear data have presented a different scenario, with snakes being more closely related to anguimorph and iguanian lizards. In this mitogenomic study we have examined the above hypotheses with the inclusion of amphisbaenians, one gekkotan and one acrodont lizard, taxa not represented in previous mitogenomic studies. To this end we have also extended the representation of snakes by sequencing five additional snake genomes: two scolecophidians (Ramphotyphlops australis and Typhlops mirus) two henophidians (Eunectes notaeus and Boa constrictor) and one caenophidian (Elaphe guttata). The phylogenetic analysis recovered snakes and amphisbaenians as sister groups, thereby differing from previous hypotheses. In addition to a discussion on previous morphological and molecular studies in light of the results presented here, the current study also provides some details regarding features of the new snake mitochondrial genomes described.}},
author = {{Douglas, Desiree and Janke, Axel and Arnason, Ulfur}},
issn = {{0300-3256}},
keywords = {{Snakes; phylogeny; lizards; serpentes; mitogenomics; mitochondrial; genome}},
language = {{eng}},
number = {{6}},
pages = {{545--558}},
publisher = {{Wiley-Blackwell}},
series = {{Zoologica Scripta}},
title = {{A mitogenomic study on the phylogenetic position of snakes}},
url = {{http://dx.doi.org/10.1111/j.1463-6409.2006.00257.x}},
doi = {{10.1111/j.1463-6409.2006.00257.x}},
volume = {{35}},
year = {{2006}},
}