Loss of genetic diversity in the banded purple shell breeds of the Japanese littleneck clam, Ruditapes philippinarum, selected for several generations
2000
Sakai, H. (Shimonoseki Univ. of Fisheries, Yamaguchi (Japan)) | Dogawa, Y. | Idei, K. | Kito, H. | Kishioka, M. | Matsuno, S. | Tateishi, T. | Ideo, H.
Loss of genetic diversity in the banded-purple shell breeds of the Japanese littleneck clam, Ruditapes philippinarum, selected for 6 generations was analyzed in terms of allozyme indices. Heterozygosity decreased and the inbreeding coefficient increased substantially from generation to generation. The calculated mean effective population size was far less than the mean actual number of parental clams.
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