TY - JOUR
T1 - Evolution of a multiple sex-chromosome system by three-sequential translocations among potential sex-chromosomes in the taiwanese frog odorrana swinhoana
AU - Miura, Ikuo
AU - Shams, Foyez
AU - Lin, Si Min
AU - de Bello Cioffi, Marcelo
AU - Liehr, Thomas
AU - Al-Rikabi, Ahmed
AU - Kuwana, Chiao
AU - Srikulnath, Kornsorn
AU - Higaki, Yuya
AU - Ezaz, Tariq
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/3
Y1 - 2021/3
N2 - Translocation between sex-chromosomes and autosomes generates multiple sex-chromosome systems. It happens unexpectedly, and therefore, the evolutionary meaning is not clear. The current study shows a multiple sex chromosome system comprising three different chromosome pairs in a Taiwanese brown frog (Odorrana swinhoana). The male-specific three translocations cre-ated a system of six sex-chromosomes, X1Y1X2Y2X3Y3-X1X1X2X2X3X3. It is unique in that the translocations occurred among three out of the six members of potential sex-determining chromosomes, which are known to be involved in sex-chromosome turnover in frogs, and the two out of three include orthologs of the sex-determining genes in mammals, birds and fishes. This rare case suggests sex-specific, nonrandom translocations and thus provides a new viewpoint for the evolutionary meaning of the multiple sex chromosome system.
AB - Translocation between sex-chromosomes and autosomes generates multiple sex-chromosome systems. It happens unexpectedly, and therefore, the evolutionary meaning is not clear. The current study shows a multiple sex chromosome system comprising three different chromosome pairs in a Taiwanese brown frog (Odorrana swinhoana). The male-specific three translocations cre-ated a system of six sex-chromosomes, X1Y1X2Y2X3Y3-X1X1X2X2X3X3. It is unique in that the translocations occurred among three out of the six members of potential sex-determining chromosomes, which are known to be involved in sex-chromosome turnover in frogs, and the two out of three include orthologs of the sex-determining genes in mammals, birds and fishes. This rare case suggests sex-specific, nonrandom translocations and thus provides a new viewpoint for the evolutionary meaning of the multiple sex chromosome system.
KW - Autosome
KW - Fusion
KW - Hexavalent
KW - Sex-chromosome turnover
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U2 - 10.3390/cells10030661
DO - 10.3390/cells10030661
M3 - Article
C2 - 33809726
AN - SCOPUS:85103863314
SN - 2073-4409
VL - 10
SP - 1
EP - 10
JO - Cells
JF - Cells
IS - 3
M1 - 661
ER -