Re: Diploids Etc


The production of fertile pollen is very rare, at least in most
plants. However a triploid can be treated with colchicine to get a
hexaploid (6N) which is usually at least partly fertile. These
sometime can be backcrossed with the diploid or tetraploid parent and
produce some fertile offspring.  Interesting things can happen since
genes are sometimes transferred to other chromomes. With luck you may
get useful material transferred from one specie to another. Not often.
-----Original Message-----
From: Sandy Connerley <sandym@NORTHCOAST.COM>
To: IGSROBIN@MAELSTROM.STJOHNS.EDU <IGSROBIN@MAELSTROM.STJOHNS.EDU>
Date: Wednesday, October 24, 2001 21:53
Subject: [IGSROBIN] Diploids Etc


>Phil,
>
>That was so clear.  Thank you very much.
>
>Triploids are generally sterile.  I think they sometimes (though not
>often) produce a little pollen.  Am I right that if they do, it is
>generally diploid?
>
>Sandy
>



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