| lactate dehydrogenase: a polymorphism of anoplarchus purpurescens: geographic variation in central california. | previous studies on the muscle lactate dehydrogenase polymorphism of the stichaeid fish anoplarchus purpurescens in puget sound have demonstrated the existence of a clinal pattern of allele frequency. the ldh-a' allele was observed to increase toward the south, with several environmental factors showing correlation with this change in allele frequency. populations from california were sampled in the present study to determine whether or not gene frequencies along an independent transect near the ... | 2008 | 528782 |