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Algae with three sexes that mate in pairs identified in Japanese river (2021)

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11–20 of 62 posts

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#11
post #4

Schizophyllum commune, known as the splitgill mushroom, has over 23,000 sexes. Two individuals are sexually compatible based on genes at two sites in their genome. If a pair has matching genes at either location, the pair is not sexually compatible.

Maybe a HyperLogLog (HLL) data structure would be useful to store all of those options.

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#12
post #4

Schizophyllum commune, known as the splitgill mushroom, has over 23,000 sexes. Two individuals are sexually compatible based on genes at two sites in their genome. If a pair has matching genes at either location, the pair is not sexually compatible.

Is there any possibility that humans could be similar given that not every couple can have children naturally?

There is a massive difference. With that kind of mushroom one can expect that any random pair is very likely to match up. With humans you have tad less of 50% chance of being able to make kids with any random otherwise fertile human.

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#13
post #4

Schizophyllum commune, known as the splitgill mushroom, has over 23,000 sexes. Two individuals are sexually compatible based on genes at two sites in their genome. If a pair has matching genes at either location, the pair is not sexually compatible.

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.

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#14
post #4

Schizophyllum commune, known as the splitgill mushroom, has over 23,000 sexes. Two individuals are sexually compatible based on genes at two sites in their genome. If a pair has matching genes at either location, the pair is not sexually compatible.

Maybe a HyperLogLog (HLL) data structure would be useful to store all of those options.

It’s only 23,000 options, a plaintext file would work fine. Computers are fast.

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#15
post #13
post #4

Schizophyllum commune, known as the splitgill mushroom, has over 23,000 sexes. Two individuals are sexually compatible based on genes at two sites in their genome. If a pair has matching genes at either location, the pair is not sexually compatible.

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.

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.

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#18
post #7
post #6

Earlier quoted context omitted.

I can't get past the mental visualisation of the gender drop-down list on the registration. Or the "seeking" list.

A list would only work if selection is limited. A better UI decision would either be a “sex cloud” akin to a word cloud, or the bubble UI that Apple Music uses to identify your preferred genres.

In the late 90's I designed a dating website and we had about 5 axis to have categories for morphology, preferences, compatibility, etc. Sadly, I didn't stay long enough to see it deployed to production, and never actually used the application (Amigos Virtuais, at Universo Online, in Brazil). The PO and I had a lot of fun with all other personality dimensions that we had.

Re: Algae with three sexes that mate in pairs identified in Japanese river (2021)

#20

So those aren't a third sex, it's individuals with both male and female reproductive cells.

But they're calling it a third sex because it's due to "normal expression of the species' genes", not because of hermaphroditism.
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