Abstract
The evolutionary relationship of peculiar and poorly known Ganges River dolphin with extinct and extant cetaceans has been in the state of confusion for more than a century. The close resemblance of platanistidae with some of the extinct taxon viz., Dalpiaziniidae and Waipatiidae and their sister group relationship with many of the extant lineages of cetaceans has been reported but none of the alternative hypotheses provide an unambiguous placement for this species. The present study provides insights into the molecular relationships of Platanista with other cetaceans based on comprehensive analyses of the mitochondrial cytochrome b and nuclear interphotoreceptor retinoid-binding protein gene sequences, obtained from 15 specimens of Ganges dolphin from India and Bangladesh. The mean substitution distance analysis of phylogenetically informative characters in the cytochrome b sequences suggested that Platanista gangetica is significantly closer (P <0.001) to Mysticeti than to any other group of toothed whales. However, the conventional methods of phylogenetic reconstruction supported this finding with low to moderate (41-69%) bootstrap values.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 280-288 |
| Number of pages | 9 |
| Journal | Molecular Phylogenetics and Evolution |
| Volume | 33 |
| Issue number | 2 |
| DOIs | |
| State | Published - Nov 2004 |
| Externally published | Yes |
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Keywords
- Ganges dolphin
- Mitochondrial cytochrome b
- Nuclear interphotoreceptor retinoid-binding protein
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Molecular Biology
- Genetics
Cite this
Phylogenetic position of Platanista gangetica : Insights from the mitochondrial cytochrome b and nuclear interphotoreceptor retinoid-binding protein gene sequences. / Verma, Sunil Kumar; Sinha, Ravindra Kumar; Singh, Lalji.
In: Molecular Phylogenetics and Evolution, Vol. 33, No. 2, 11.2004, p. 280-288.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phylogenetic position of Platanista gangetica
T2 - Insights from the mitochondrial cytochrome b and nuclear interphotoreceptor retinoid-binding protein gene sequences
AU - Verma, Sunil Kumar
AU - Sinha, Ravindra Kumar
AU - Singh, Lalji
PY - 2004/11
Y1 - 2004/11
N2 - The evolutionary relationship of peculiar and poorly known Ganges River dolphin with extinct and extant cetaceans has been in the state of confusion for more than a century. The close resemblance of platanistidae with some of the extinct taxon viz., Dalpiaziniidae and Waipatiidae and their sister group relationship with many of the extant lineages of cetaceans has been reported but none of the alternative hypotheses provide an unambiguous placement for this species. The present study provides insights into the molecular relationships of Platanista with other cetaceans based on comprehensive analyses of the mitochondrial cytochrome b and nuclear interphotoreceptor retinoid-binding protein gene sequences, obtained from 15 specimens of Ganges dolphin from India and Bangladesh. The mean substitution distance analysis of phylogenetically informative characters in the cytochrome b sequences suggested that Platanista gangetica is significantly closer (P <0.001) to Mysticeti than to any other group of toothed whales. However, the conventional methods of phylogenetic reconstruction supported this finding with low to moderate (41-69%) bootstrap values.
AB - The evolutionary relationship of peculiar and poorly known Ganges River dolphin with extinct and extant cetaceans has been in the state of confusion for more than a century. The close resemblance of platanistidae with some of the extinct taxon viz., Dalpiaziniidae and Waipatiidae and their sister group relationship with many of the extant lineages of cetaceans has been reported but none of the alternative hypotheses provide an unambiguous placement for this species. The present study provides insights into the molecular relationships of Platanista with other cetaceans based on comprehensive analyses of the mitochondrial cytochrome b and nuclear interphotoreceptor retinoid-binding protein gene sequences, obtained from 15 specimens of Ganges dolphin from India and Bangladesh. The mean substitution distance analysis of phylogenetically informative characters in the cytochrome b sequences suggested that Platanista gangetica is significantly closer (P <0.001) to Mysticeti than to any other group of toothed whales. However, the conventional methods of phylogenetic reconstruction supported this finding with low to moderate (41-69%) bootstrap values.
KW - Ganges dolphin
KW - Mitochondrial cytochrome b
KW - Nuclear interphotoreceptor retinoid-binding protein
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U2 - 10.1016/j.ympev.2004.06.018
DO - 10.1016/j.ympev.2004.06.018
M3 - Article
VL - 33
SP - 280
EP - 288
JO - Molecular Phylogenetics and Evolution
JF - Molecular Phylogenetics and Evolution
SN - 1055-7903
IS - 2
ER -