Engelhorn R, Schreiber A
Zoologisches Institut I, Universität Heidelberg, Germany.
Biochem Genet. 1997 Aug;35(7-8):233-49. doi: 10.1023/a:1021845032206.
Variation at 23 putative enzyme-coding loci was scored in 424 lampreys, including 321 European brook lampreys (Lampetra planeri), 83 European river lampreys (L. fluviatilis), 11 Ukrainian brook lampreys (Eudontomyzon mariae), and nine sea lampreys (Petromyzon marinus). Twelve polymorphisms are described for Lampetra species (LDH*, SOD-2*, PNP*, AAT-1*, AK-1*, ES-2*, LGL*, MPI*, GPI-1*. GPI-2*, PGM*, IDHP-2*), and two each for E. mariae (GPI-1*, ME-2*) and P. marinus (MDH-1*, ME-2*). Diagnostic allozymes are presented for the discrimination of lamprey taxa, some of which are difficult to recognize from the morphology of ammocoetes larvae, the life stage usually encountered when collecting cyclostomes. The allelic markers described permit the clear allocation to a genus, except for the species L. fluviatilis and L. planeri, which are not differentiated by qualitative allozyme analysis.
在424只七鳃鳗中对23个假定的酶编码基因座的变异情况进行了评分，其中包括321只欧洲溪七鳃鳗（Lampetra planeri）、83只欧洲河七鳃鳗（L. fluviatilis）、11只乌克兰溪七鳃鳗（Eudontomyzon mariae）和9只海七鳃鳗（Petromyzon marinus）。描述了七鳃鳗属物种的12种多态性（LDH*、SOD - 2*、PNP*、AAT - 1*、AK - 1*、ES - 2*、LGL*、MPI*、GPI - 1*、GPI - 2*、PGM*、IDHP - 2*），以及玛丽亚七鳃鳗（GPI - 1*、ME - 2*）和海七鳃鳗（MDH - 1*、ME - 2*）各两种。给出了用于区分七鳃鳗类群的诊断性等位酶，其中一些从沙隐虫幼虫的形态很难识别，沙隐虫幼虫是在采集圆口纲动物时通常会遇到的生命阶段。所描述的等位基因标记允许明确归属于一个属，但欧洲河七鳃鳗和欧洲溪七鳃鳗这两个物种除外，它们通过定性等位酶分析无法区分。
