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Old June 18, 2015   #36
rubbe87
Tomatovillian™
 
Join Date: May 2015
Location: sweden
Posts: 26
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Quote:
Originally Posted by Fusion_power View Post
I am growing out 2 groups of F2 seedlings from a cross of S. Lycopersicum X S. Pimpinellifolium with 16 plants per in my garden. I have plants lined up to make more crosses this year using S. Habrochaites as the pollen parent.

Crossing all the known tomato species into one plant would of necessity severely decrease genetic diversity in the tomato clade. The way to increase diversity is to domesticate more of the wild species by bringing desirable genes in through crosses. S. Habrochaites and S. Peruvianum have the most potential for stress tolerance genes and for disease tolerance. S. Pimpinellifolium and S. Galapagense have the most potential in very close relatives to the domestic tomato.
why would crossing all wild tomato species into one plant decrease genetic diversity in that plant should it not become much higher then a normal wild tomato plant?
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