Leslie J F, Pontier P J
Biochem Genet. 1980 Feb;18(1-2):103-15. doi: 10.1007/BF00504363.
Homologies among esterase isozymes in fish in the poeciliid genera Poeciliopsis and Xiphophorus are proposed. Esterase homologies are based on their tissue distributions and inhibition and substrate properties. The five esterases include two carboxylesterases, one eserine sulfate-sensitive esterase, and two esterases resistant to inhibition, one of which reacts only with acetate esters. Linkage studies in Poeciliopsis monacha indicate that the loci encoding the two carboxylesterases are linked to each other and to the locus for eye-specific lactate dehydrogenase. Comparisons of the linking reported here with earlier studies in Xiphophorus suggest that there is a large region of linkage homology in the genetic maps of Poeciliopsis and Xiphophorus.
本文提出了食蚊鱼科的食蚊鱼属和剑尾鱼属鱼类酯酶同工酶之间的同源性。酯酶同源性基于它们的组织分布、抑制作用和底物特性。这五种酯酶包括两种羧酸酯酶、一种对硫酸毒扁豆碱敏感的酯酶和两种抗抑制的酯酶，其中一种仅与乙酸酯反应。食蚊鱼的连锁研究表明，编码两种羧酸酯酶的基因座彼此连锁，并且与眼特异性乳酸脱氢酶的基因座连锁。本文报道的连锁关系与剑尾鱼早期研究的比较表明，食蚊鱼和剑尾鱼的遗传图谱中存在一个较大的连锁同源区域。
