Hi guys
What are peoples thoughts on hybridization in the wild between loricariids of the same genus. Is it possible, has it happened before ??? Or will we not ever no unless DNA testing is used.......
I had a good chat with a friend about it and hes thinks it does happenen but im very secptical
Cheers craig
Hybridization in the wild
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Brian2014
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Re: Hybridization in the wild
From Amazonas
by by Haakon Haagensen
"During just one dive, different variants can be caught in a single locality. They share their habitat with some of the main species in the river (L66, L333, and H. zebra). Belo Monte seems to be a hotspot for the development of new forms and species. So far, the gene flow between these forms has not been well studied, but a form like L173 suggests that there are regular natural hybridizations among some of them. The question is, to what extent is this happening?"
Hopefully, detailed molecular DNA studies will soon reveal more about their genetic relationships, but there is no doubt that the forms are all closely related. A very comprehensive study is currently in progress and should shed some light on the issue
by by Haakon Haagensen
"During just one dive, different variants can be caught in a single locality. They share their habitat with some of the main species in the river (L66, L333, and H. zebra). Belo Monte seems to be a hotspot for the development of new forms and species. So far, the gene flow between these forms has not been well studied, but a form like L173 suggests that there are regular natural hybridizations among some of them. The question is, to what extent is this happening?"
Hopefully, detailed molecular DNA studies will soon reveal more about their genetic relationships, but there is no doubt that the forms are all closely related. A very comprehensive study is currently in progress and should shed some light on the issue
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apistomaster
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Re: Hybridization in the wild
I suspect that natural hybrids have occurred infrequently over the millennia.
However, as the habitat is degraded by the Belo Monte Hydro project and species populations increasingly diminish, then hybridization incidence is likely to increase.
Of course, I am merely speculating but I think that the natural barriers separating Hypancistrus species are not as rigid as those of many other genera of most other fishes.
I also concur with the need for more molecular phylogenetic studies before we can refine our understanding of what has actually transpired as the various Hypancistrus species evolved.
I bet it is much more difficult for say Orinoco basin Hypancistrus to successfully hybridize with the probably much more closely related species found only in the Rio Xingu.
However, as the habitat is degraded by the Belo Monte Hydro project and species populations increasingly diminish, then hybridization incidence is likely to increase.
Of course, I am merely speculating but I think that the natural barriers separating Hypancistrus species are not as rigid as those of many other genera of most other fishes.
I also concur with the need for more molecular phylogenetic studies before we can refine our understanding of what has actually transpired as the various Hypancistrus species evolved.
I bet it is much more difficult for say Orinoco basin Hypancistrus to successfully hybridize with the probably much more closely related species found only in the Rio Xingu.
Avid Trout fly fisherman. ·´¯`·...¸><)))º>