PMID- 23509694
OWN - NLM
STAT- MEDLINE
DCOM- 20131112
LR  - 20211021
IS  - 2314-6141 (Electronic)
IS  - 2314-6133 (Print)
VI  - 2013
DP  - 2013
TI  - In situ gene mapping of two genes supports independent evolution of sex 
      chromosomes in cold-adapted Antarctic fish.
PG  - 243938
LID - 10.1155/2013/243938 [doi]
LID - 243938
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.
FAU - Ghigliotti, Laura
AU  - Ghigliotti L
AD  - Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, 
      16132 Genoa, Italy. laura.ghigliotti@gmail.com
FAU - Cheng, C-H Christina
AU  - Cheng CH
FAU - Bonillo, Celine
AU  - Bonillo C
FAU - Coutanceau, Jean-Pierre
AU  - Coutanceau JP
FAU - Pisano, Eva
AU  - Pisano E
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20130212
PL  - United States
TA  - Biomed Res Int
JT  - BioMed research international
JID - 101600173
RN  - 0 (Antifreeze Proteins)
RN  - 0 (RNA, Ribosomal, 5S)
SB  - IM
MH  - Animals
MH  - Antarctic Regions
MH  - Antifreeze Proteins/genetics
MH  - Chromosome Banding
MH  - *Chromosome Mapping
MH  - *Evolution, Molecular
MH  - Female
MH  - Fishes/*genetics/physiology
MH  - In Situ Hybridization, Fluorescence
MH  - Male
MH  - RNA, Ribosomal, 5S/metabolism
MH  - Sex Chromosomes/*genetics
MH  - Species Specificity
PMC - PMC3583050
EDAT- 2013/03/20 06:00
MHDA- 2013/11/13 06:00
PMCR- 2013/02/12
CRDT- 2013/03/20 06:00
PHST- 2012/08/31 00:00 [received]
PHST- 2012/12/03 00:00 [revised]
PHST- 2012/12/17 00:00 [accepted]
PHST- 2013/03/20 06:00 [entrez]
PHST- 2013/03/20 06:00 [pubmed]
PHST- 2013/11/13 06:00 [medline]
PHST- 2013/02/12 00:00 [pmc-release]
AID - 10.1155/2013/243938 [doi]
PST - ppublish
SO  - Biomed Res Int. 2013;2013:243938. doi: 10.1155/2013/243938. Epub 2013 Feb 12.