In Situ Gene Mapping of Two Genes Supports Independent Evolution of Sex Chromosomes in Cold-Adapted Antarctic Fish
Joint Authors
Ghigliotti, Laura
Cheng, C.-H. Christina
Bonillo, Céline
Coutanceau, Jean-Pierre
Pisano, Eva
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Two genes, that is, 5S ribosomal sequences and antifreeze glycoprotein (AFGP) genes, were mapped onto chromosomes of eight Antarctic notothenioid fish possessing a X1X1X2X2/X1X2Y sex chromosome system, namely, Chionodraco hamatus and Pagetopsis macropterus (family Channichthyidae), Trematomus hansoni, T.
newnesi, T.
nicolai, T.
lepidorhinus, and Pagothenia borchgrevinki (family Nototheniidae), and Artedidraco skottsbergi (family Artedidraconidae).
Through fluorescence in situ hybridization (FISH), we uncovered distinct differences in the gene content of the Y chromosomes in the eight species, with C.
hamatus and P.
macropterus standing out among others in bearing 5S rDNA and AFGP sequences on their Y chromosomes, respectively.
Both genes were absent from the Y chromosomes of any analyzed species.
The distinct patterns of Y and non-Y chromosome association of the 5S rDNA and AFGP genes in species representing different Antarctic fish families support an independent origin of the sex heterochromosomes in notothenioids with interesting implications for the evolutionary/adaptational history of these fishes living in a cold-stable environment.
American Psychological Association (APA)
Ghigliotti, Laura& Cheng, C.-H. Christina& Bonillo, Céline& Coutanceau, Jean-Pierre& Pisano, Eva. 2013. In Situ Gene Mapping of Two Genes Supports Independent Evolution of Sex Chromosomes in Cold-Adapted Antarctic Fish. BioMed Research International،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-1003777
Modern Language Association (MLA)
Ghigliotti, Laura…[et al.]. In Situ Gene Mapping of Two Genes Supports Independent Evolution of Sex Chromosomes in Cold-Adapted Antarctic Fish. BioMed Research International No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-1003777
American Medical Association (AMA)
Ghigliotti, Laura& Cheng, C.-H. Christina& Bonillo, Céline& Coutanceau, Jean-Pierre& Pisano, Eva. In Situ Gene Mapping of Two Genes Supports Independent Evolution of Sex Chromosomes in Cold-Adapted Antarctic Fish. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-1003777
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1003777