Re: Panduro x Nijsenni???

[Mike & Diane Wise <apistowise@bewellnet.com>]

John,

Römer conducted cross breeding experiments with these two species. It was
described in the manuscript for the original description of A. panduro.
Unfortunately, this part was edited out of the published description due to space
restrictions.

Uwe kept groups of both species together in the same tank. In every spawning
observed nijsseni spawned with nijsseni and panduro with panduro. When a panduro
male was placed in a tank with mixed nijsseni & panduro females, only the female
panduros produced fry. When a male nijsseni was exchanged for the male panduro,
only the female nijsseni produced fry. When the males were only given females of
the other species, they usually didn't breed at all. When they did, the spawns
were nearly all infertile. So, you see, these two species can be considered
separate biological species. Compared to other apisto species that do readily
cross breed, they might not even be that closely related.

I know I would be interested to hear if you "pair" decide to breed.

Mike Wise

John Wubbolt wrote:

> Now before anyone jumps up and gives me crap.   No I didn't spawn this
> cross.   I was WONDERING what would happen if an adult male Panduro and
> an adult female Nijsenni were housed together in a tank.   Would they
> cross spawn.   Reason I ask is I have this situation in one of my tanks
> to save tank space.  I lost the male Nijsenni and female Panduro so I
> placed them together to use the other tank for a group of Steindachneri.
> The female is almost always in breeding coloration and the male Panduro
> ignores her.   I was curious if anyone else had tried this cross before
> with results.   Besides destroying the offspring once you could see what
> they looked like as adults, what would they look like.
>
> Like someone else on this list mentioned earlier in the year I have
> always wondered if these two species aren't really just subspecies of
> the other.   With Panduro being the subspecies or color morph of
> Nijsenni.   Has anyone done any DNA workings on this two to truly
> seperate them as their own species or are we just assuming they are so??
> Curious minds here in the frosty tundra we call the Adirondack Mts.
>
> John
>
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