Males

All‐male production by marker‐assisted selection for sex determining loci of admixed Oreochromis niloticus and Oreochromis aureus stocks

25 days ago   |   By Animal Genetics

Summary
Crossing Oreochromis niloticus females with Oreochromis aureus males results in all‐male progeny that are essential for effective tilapia farming. However, a reproductive barrier between these species limits mating and mass‐fry production. One approach to overcoming this barrier is to select parental stocks of mixed genetic backgrounds, which allow interspecific reproductive recognition, while closely maintaining the genetic profiles for sex‐determination of the respective purebred species. Here, we test this approach in a data set of 160 On × Oa spawns of 109 male and 100 female...
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