Molecular phylogeny of elasmobranchs inferred from mitochondrial and nuclear markers

@article{PavanKumar2013MolecularPO,
  title={Molecular phylogeny of elasmobranchs inferred from mitochondrial and nuclear markers},
  author={Annam Pavan-Kumar and Pathakota Gireesh-Babu and Penumada Suresh Babu and A. K. Jaiswar and V. Hari Krishna and K. Pani Prasasd and Aparna Chaudhari and Sadashiv Gopal Raje and S. K. Chakraborty and Gopal Krishna and Wazir Singh Lakra},
  journal={Molecular Biology Reports},
  year={2013},
  volume={41},
  pages={447-457}
}
The elasmobranchs (sharks, rays and skates) being the extant survivors of one of the earliest offshoots of the vertebrate evolutionary tree are good model organisms to study the primitive vertebrate conditions. They play a significant role in maintaining the ecological balance and have high economic value. Due to over-exploitation and illegal fishing worldwide, the elasmobranch stocks are being decimated at an alarming rate. Appropriate management measures are necessary for restoring depleted… Expand
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References

SHOWING 1-10 OF 68 REFERENCES
Phylogeny of elasmobranchs based on LSU and SSU ribosomal RNA genes.
TLDR
Several different molecular studies now refute the Hypnosqualea hypothesis of elasmobranch interrelationships, and are consistent with the idea that "orbitostylic" sharks form a monophyletic group. Expand
Extensive paraphylies within sharks of the order Carcharhiniformes inferred from nuclear and mitochondrial genes.
TLDR
A new classification for the Carcharhiniformes is proposed, with the redefinition of the family Scyliorhinidae sensu stricto and the resurrection of thefamily Pentanchidae with a new definition. Expand
Molecular phylogenetic evidence refuting the hypothesis of Batoidea (rays and skates) as derived sharks.
TLDR
The phylogenetic placement of batoids as a basal elasmobranch lineage means that much of the current thinking regarding the evolution of morphological and life history characteristics in elasmOBranchs needs to be re-evaluated. Expand
Phylogeny of hammerhead sharks (Family Sphyrnidae) inferred from mitochondrial and nuclear genes.
TLDR
The new hypothesis for the group suggests that the ancestor of all extant sharks was large and that small body size probably evolved twice at different times and places, suggesting divergent evolution in different lineages presumably in response to unique selective regimes. Expand
Molecular Phylogeny of the Sharks and Rays of Superorder Squalea Based on Mitochondrial Cytochrome b Gene
TLDR
The molecular phylogenetic tree established from the deduced cytochrome b amino acid sequences provides strong evidence for the dichotomous classifica tion of sharks and rays within Squalea. Expand
Molecular Phylogeny of Elasmobranchs
TLDR
This work extracted DNA from five species representing the major lineages of elasmobranchs and amplified and sequenced a portion of the 12S mitochondrial gene from each extract, resulting in a single most parsimonious tree. Expand
Among-site rate variation and phylogenetic analysis of 12S rRNA in sigmodontine rodents.
We analyze sequences from two mitochondrial genes, cytochrome b (cyt b) and 12S rRNA (12S), for a group of sigmodontine rodents among which phylogenetic relationships are well understood based onExpand
Molecular systematics and global phylogeography of angel sharks (genus Squatina).
TLDR
A comprehensive phylogenetic reconstruction of 17 Squatina species based on two mitochondrial markers and a molecular clock analysis show that both lineage divergences coincide with the estimated time of these two geological events. Expand
A recent shark radiation: molecular phylogeny, biogeography and speciation of wobbegong sharks (family: Orectolobidae).
TLDR
It is proposed that the onset of diversification of orectolobid sharks is of Miocene age and occurred within the Indo-Australian region, and surprisingly, there is evidence for a recent and rapid radiation of wobbegong sharks. Expand
Evolution of NADH dehydrogenase subunit 2 in east African cichlid fish.
TLDR
Phylogenetic analysis of the sequences shows that the mtDNA variation in Lake Malawi cichlids is nested monophyletically within the range of variation shown by Tanganyikan cichLids, and Divergences among tribes are consistent with an intralacustrine radiation within the past 10 million years. Expand
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1
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3
4
5
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