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A Multilocus Phylogeny of the Cobra ...

Von Plettenberg Laing, Anthony,

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A Multilocus Phylogeny of the Cobra Clade Elapids /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	A Multilocus Phylogeny of the Cobra Clade Elapids // Anthony Von Plettenberg Laing.
作者:	Von Plettenberg Laing, Anthony,
面頁冊數:	1 electronic resource (63 pages)
附註:	Source: Masters Abstracts International, Volume: 80-11.
Contained By:	Masters Abstracts International80-11.
標題:	Biology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13913649
ISBN:	9798684619090

A Multilocus Phylogeny of the Cobra Clade Elapids /
Von Plettenberg Laing, Anthony,

A Multilocus Phylogeny of the Cobra Clade Elapids /Anthony Von Plettenberg Laing. - 1 electronic resource (63 pages)

Source: Masters Abstracts International, Volume: 80-11.

The extant medically and socially important cobras have been the subject toseveral comparative taxonomic studies since the 1940s, but still lack an inclusive and thorough phylogenetic tree. With recent major advancements in phylogenetic analysis, it is now common to use multiple independent loci for studying the phylogenetic relationships within groups. For the first time, 27 from the 29 identified Naja species, alongside 5 putative new or elevated species had 4426 base pairs across 1701 sequences of mitochondrial and nuclear DNA sequence data analysed. The results continue to support the monophyletic core cobra clade encompassing the genera Walterinnesia, Aspidelaps, Hemachatus, Pseudohaje and Naja (1.0 Bayesian posterior probability (BPP)), in addition to the grouping of four monophyletic subgenera within Naja. The group of African spitting cobras, Afronaja, is positioned as the sister group to the rest of the genus. Moderate support (0.8 BPP) is found for the grouping of the Asian cobras, Naja, with the African non-spitting cobras, Ureaus. The closest relative to the genus Naja is Pseudohaje goldii, a genus and species never before included inphylogenetic analysis, followed by the sister taxa Hemachatus haemachatus. Theking cobra continues to be positioned outside the core cobra group, sister toHemibungarus calligaster. The results support the hypothesis of threeindependent origins of spitting, once in the monotypic Hemachatus haemachatus, once within the subgenus Afronaja, and the final origin within the Asian cobras, subgenus Naja. The relationships found were broadly consistent with previous studies, with the additional inclusion of more species creating the most comprehensive cobra phylogeny to date. Further molecular analysis, specifically species delimitation, must be undertaken to ascertain the position of the 5 putative new species included in this study.

English

ISBN: 9798684619090Subjects--Topical Terms:

522710
Biology.
Subjects--Index Terms:

Cobras

A Multilocus Phylogeny of the Cobra Clade Elapids /
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520 $a The extant medically and socially important cobras have been the subject toseveral comparative taxonomic studies since the 1940s, but still lack an inclusive and thorough phylogenetic tree. With recent major advancements in phylogenetic analysis, it is now common to use multiple independent loci for studying the phylogenetic relationships within groups. For the first time, 27 from the 29 identified Naja species, alongside 5 putative new or elevated species had 4426 base pairs across 1701 sequences of mitochondrial and nuclear DNA sequence data analysed. The results continue to support the monophyletic core cobra clade encompassing the genera Walterinnesia, Aspidelaps, Hemachatus, Pseudohaje and Naja (1.0 Bayesian posterior probability (BPP)), in addition to the grouping of four monophyletic subgenera within Naja. The group of African spitting cobras, Afronaja, is positioned as the sister group to the rest of the genus. Moderate support (0.8 BPP) is found for the grouping of the Asian cobras, Naja, with the African non-spitting cobras, Ureaus. The closest relative to the genus Naja is Pseudohaje goldii, a genus and species never before included inphylogenetic analysis, followed by the sister taxa Hemachatus haemachatus. Theking cobra continues to be positioned outside the core cobra group, sister toHemibungarus calligaster. The results support the hypothesis of threeindependent origins of spitting, once in the monotypic Hemachatus haemachatus, once within the subgenus Afronaja, and the final origin within the Asian cobras, subgenus Naja. The relationships found were broadly consistent with previous studies, with the additional inclusion of more species creating the most comprehensive cobra phylogeny to date. Further molecular analysis, specifically species delimitation, must be undertaken to ascertain the position of the 5 putative new species included in this study.
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