TY  - JOUR
TI  - Sex reversal of the newt Triturus cristatus reared at extreme temperatures.
AU  - Wallace, H
AU  - Wallace, B M
T2  - The International Journal of Developmental Biology
AB  - Crested newt larvae were reared at defined temperatures, either from uncleaved eggs or from early feeding larvae, until metamorphosis when sexual differentiation had occurred. Trials at 18-24 degrees C showed a 1:1 sex ratio. A higher temperature trial produced more males than females, including some XX neomales. Lower temperatures resulted in a significant excess of females, including XY neofemales. Sex reversal only occurred in about half the possible cases on average. Extreme temperatures must perturb the normal XX/XY system of sex determination, to reveal either an ancestral ZZ/ZW system or a still more primitive environmental control. It is suggested that neofemales (but not neomales) could occur in nature.
PY  - 2000
VL  - 44
IS  - 7
SP  - 807
EP  - 810
J2  - Int. J. Dev. Biol.
LA  - en
SN  - 0214-6282
SN  - 1696-3547
UR  - https://ijdb.ehu.eus/article/11128575
Y2  - 2024/05/15/19:56:17
ER  -