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A comment on Algae with three sexes that mate in pairs identified in Japanese river (2021). Parent comment

Re:Algae with three sexes that mate in pairs identified in J... by im3w1l on Thursday March 10, 2022 @07:36AM (#30626204)
So just adding more about it, it seems that the sex consists of 4 parts, A-alpha, A-beta, B-alpha, B-beta. To be compatible it has to have differences in (A-alpha OR A-beta) AND (B-Alpha OR B-beta).

I can't help but think that this complex system has to have evolved to very precisely control inbreeding rates.

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Re:Algae with three sexes that mate in pairs identified in J... by londons_explore on Thursday March 10, 2022 @07:46AM (#30626282)
In plants, your genetic siblings are in many cases growing very physically close to you - especially if the seed dispersal mechanism isn't great.

That makes mechanisms to reduce inbreeding even more important.

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