Cytogenetic analysis of the Asian plethodontid salamander, Karsenia koreana: evidence for karyotypic conservation, chromosome repatterning, and genome size evolution.

Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology
Stanley K SessionsDavid B Wake

Abstract

A cytogenetic analysis, including the karyotype, C-bands, silver-stained nucleolus organizer regions and genome size, was performed on the recently discovered species, Karsenia koreana, the first plethodontid salamander from Asia. The karyotype consists of 14 pairs of bi-armed chromosomes, with no evidence of heteromorphic sex chromosomes. C-banding reveals a concentration of heterochromatin at the centromeres as well as at interstitial locations. The smallest chromosome (pair number 14) has symmetrical interstitial C-bands in each arm, resembling chromosome no. 14 of North American species of its sister group taxon, supergenus Hydromantes. Acomparative analysis of C-band heterochromatin and silver-stained nucleolus organizer regions of Karsenia and other plethodontid genera reveals that chromosomal evolution may have featured chromosome 'repatterning' within the context of conserved chromosome number and shape in this clade. Genome size is correlated with geographic distribution in plethodontids and appears to have important phenotypic correlates as well. The genome size of Karsenia is relatively large, and resembles that of the geographically closest plethodontids from western North America, especially species of the genus Hy...Continue Reading

References

Jul 15, 1975·Experientia·E Olmo, A Morescalchi
Dec 1, 1972·Annals of Biomedical Engineering·B M ChuH Wayland
Jan 1, 1983·Annals of the New York Academy of Sciences·B WeissW H Merigan
May 24, 1994·Proceedings of the National Academy of Sciences of the United States of America·G RothD B Wake
May 23, 2002·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·David C HardiePaul D N Hebert
Aug 22, 2002·Genetica·T Ryan Gregory
Nov 1, 1953·Stain Technology·A D CONGER, L M FAIRCHILD
Sep 15, 2004·Proceedings of the National Academy of Sciences of the United States of America·Rachel Lockridge MuellerJeffrey L Boore
Feb 9, 2005·Evolution; International Journal of Organic Evolution·Paul T ChippindaleJohn J Wiens
May 6, 2005·Nature·M S MinD B Wake
Jun 5, 2007·Genome Génome / Conseil National De Recherches Canada·Spartak N LitvinchukLeo J Borkin
Dec 14, 2007·Proceedings of the National Academy of Sciences of the United States of America·David R VieitesDavid B Wake
Feb 23, 2008·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Stanley K Sessions
Nov 1, 1987·Evolution; International Journal of Organic Evolution·Stanley K Sessions, Allan Larson

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Citations

Feb 23, 2008·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Stanley K Sessions
Jul 5, 2012·Evolution; International Journal of Organic Evolution·Damien B WilburnRichard C Feldhoff
Dec 17, 2009·Journal of Morphology·David BuckleyDavid B Wake
Apr 12, 2017·Zoological Science·Jae-Young SongHong-Shik Oh

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