FN Archimer Export Format
PT J
TI In Situ Gene Mapping of Two Genes Supports Independent Evolution of Sex Chromosomes in Cold-Adapted Antarctic Fish
BT 
AF GHIGLIOTTI, Laura
   CHENG, C. -H. Christina
   BONILLO, Celine
   COUTANCEAU, Jean-Pierre
   PISANO, Eva
AS 1:1;2:2;3:3,4;4:3,4;5:1;
FF 1:;2:;3:;4:;5:;
C1 Univ Genoa, Dept Earth Environm & Life Sci DISTAV, I-16132 Genoa, Italy.
   Univ Illinois, Dept Anim Biol, Urbana, IL 61801 USA.
   MNHN, SSM, F-75231 Paris, France.
   MNHN, CNRS, UMR 7138, Dept Systemat & Evolut, F-75231 Paris, France.
C2 UNIV GENOVA, ITALY
   UNIV ILLINOIS, USA
   MNHN, FRANCE
   MNHN, FRANCE
IN DOAJ
IF 1.579
TC 9
UR https://archimer.ifremer.fr/doc/00296/40759/39748.pdf
LA English
DT Article
CR REVOLTA 2011
BO L'Astrolabe
AB 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.
PY 2013
SO Biomed Research International
SN 2314-6133
PU Hindawi Publishing Corporation
VL 2013
IS ID 243938
UT 000315227800001
BP 1
EP 8
DI 10.1155/2013/243938
ID 40759
ER

EF