Cross Breeding Crayfish
Posted 30 March 2006 - 03:51 PM
you should always keep in mind that a "genus", is something that is total artificial and man made (like any other, taxonomic rank, e.g. family, class, order ...).
The only true and valid natural rank is a species. Everything in nature (from Evolution to Ecology) happens on the species level. And a species doesn?t care if another species is from the same "genus" or "tribe" or whatever...
The chance of Cross breeding depends on how related the both species are. From a phylogenetic aspect, the degree of relationship between the species in a "genus" is not evenly distributed. Certain species are more closely related (e.g. sister species) than others.
So, in big genera like Procambarus, some species are so distant and different, they will most probably not interbreed. Also, some of the smaller genera like Fallicambarus and Barbicambarus are perhaps not far away from certain species of other genera.
Yes, it is likely that species that are closely related can Cross Breed. But a close relationship is not always equal with "being in the same genus". :wink:
Posted 30 March 2006 - 11:09 PM
Big Vine said:
not at all - the further away from related they are reduces the success percentage. (?fungity?)
Posted 31 March 2006 - 06:59 AM
Paul V said:
Thanks Paul V. What does that last part (?fungity?) mean...is that some sort of 'inside joke' or something? Lol.