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Sexual selection in plants

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Sexual selection in plants

Postby ManBearPig89 » Mon Dec 06, 2010 11:07 pm

Are there any, or is the plant happy, as long as it reproduces?

I know there are receptors on the flower/ "she-part" of the plant, so the plant don't get pollinated by another species, but is there any way for the plant to "know" if the pollon carrys good/bad genes?
Are the same kind of receptores involved?
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Postby JackBean » Tue Dec 07, 2010 9:13 am

do animals have receptors for good/bad genes in sperm?
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby ManBearPig89 » Tue Dec 07, 2010 7:44 pm

I guess animals don't need receptors, as they most often have some way to know who they are mating with, thereby able to select good genes by avoiding mating e.g. with shabby-looking individuals.
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Postby JackBean » Wed Dec 08, 2010 9:01 am

plants don't have anything like that either. At least I don't know about anything. Also, how would you like to sense such things? Moreover, plants usually produce much more seeds, so if some gets wrong, it doesn't matter so much ;)
http://www.biolib.cz/en/main/

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Postby ManBearPig89 » Fri Dec 10, 2010 6:46 am

giving it some thought i think it's not nessicary eighter (at least not in general). The fact the a plant is able to get an insect to pollinate it, or are succesfull in pollinating another flower automaticly will increase selection for good genes by survival of the fittest.
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Postby magicsiew » Fri Dec 10, 2010 8:20 pm

Do you know there is a word "Incompatibility" for crossing plants. Plants are able to "select" the other plant through this mechanism. If you find more information in this part, you will find another term on "S haplotypes". This are the alleles that control the mechanism whether 2 plants are able to cross and produce fertile progeny. For those incompatible, the pollen (male determinant) that fall on stigma (female determinant) will not germinate; pollen tube will not form; fertilization will not occur, etc...

I will suggest you to read through "incompatibility" and "Self-incompatibility" for more information and detail.
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Postby ManBearPig89 » Sun Dec 12, 2010 8:15 pm

thanks, will look into it
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Postby JackBean » Mon Dec 13, 2010 10:34 am

I thought you knew that...
http://www.biolib.cz/en/main/

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