Debate about Bombina orientalis populations/colour variances

[FrogEyes]

All other Asian Bombina are part of subgenus Glandula, and are presently included in B.maxima. Collectively, they are found in Yunnan, Guizhou, Guangxi, Sichuan, Hubei, and northern Vietnam. Some of these regions certainly have chilly and snowy winters, but all are partly or completely within the tropics, and much of it is "tropical" to "sub-tropical" in climate and vegetation. Too many people think that "tropical" refers to a particular climate and vegetation, when it actually refers only to a geographical region which includes everything from glaciers to hot and sandy deserts.

 

[evereen]

FrogEyes where are you found the subgenus Glandula! Something changed since 2008 - Bombinatoridae ?

Eze, my brown male certainly does not belong to the species Bombina maxima. It has to be normal for Bombina orientalis pattern on the belly - B. maxima, have entirely different (all my Bombina maxima have the same pattern on ventral side). Besides he is smaller, slimmer and loudly croak (B. maxima croak very quietly). And he is interested in green females B. orientalis (males of B.maxima never).
The brown ones haven't bigger heads and bigger body than green B.orientalis, but really this brown male use to like sex/amplexing more that the green ones ).

Regards

 

[FrogEyes]

Subgenus Glandula was named in 1985.

 

[Ezequiel Nahuel]

Well, I think it will help posting some pictures of offsprings and their parents. What do you think?
This is my CB juvenile:

And those are its parents:

The green one is the male and the mother is the brown. That two last photos aren´t mine.
I´m not good at genetic but the brothers and sisters of my juvenile were 50% brown and 50% green. What does that mean?
Bye

 

[FrogEyes]

It likely means nothing. Brown and green could be controlled by two or more separate genes; or they may be genetically identical, with the color being controlled by "mood", chemistry, diet, or other factors. 50/50 ratios are not likely to happen with simple genetic traits.

 

[caleb]

50/50 ratios are not likely to happen with simple genetic traits.

A single gene trait will give 50:50 ratios if one of the parents is homozygous, one heterozygous.

If Eze breeds green juveniles with green juveniles and brown with brown, it should be obvious whether this is the case- one cross would give a single colour of offspring, the other would give both colours.

 

[FrogEyes]

That's such an obvious point, I'm glad I KNOW I was tired when I posted!