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Estimation of preferential pairing rates in second-generation autotetraploid pacific oysters (Crassostrea gigas)
Jason P Curole1, Dennis Hedgecock
1Department of Marine Environmental Biology, University of Southern California, Los Angeles, 90089, USA. jcurole@usc.edu
Abstract:
Although previously disregarded, polyploidy, and in particular autopolyploidy, is now believed to have played a prominent role in the evolution of plants and animals. We estimated the rate of preferential pairing in second-generation autotetraploid Pacific oysters from gametic frequencies. We found significant levels of preferential pairing in these recently generated autopolyploids, suggesting that genetic variation in standing populations may play a role in meiotic mechanisms of polyploids derived from these populations.
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