Morphometric and meristic characteristics of two groups ofLethenteron reissneri
Morphometric and meristic characteristics of two groups ofLethenteron reissneri
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两组赖斯纳菌的形态和分枝特征
DOI：
10.1007/bf02672754
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发表时间：
1997
影响因子：
1.2
通讯作者：
A. Goto
中科院分区：
文献类型：
--
作者：
Y. Yamazaki;A. Goto
比较了产自日本北海道和本州岛的两个遗传差异较大的雷氏散口线虫群体的形态特征和分生组织特征。而显着差异，发现在一些形态计量和meristic字符，范围有所重叠，在两组之间的所有字符检查。因此，仅用形态特征很难准确区分这两组。在同域居群中，几乎所有的形态计量学和分生结构特征均无显著差异。两组L. reissneri，这是生殖隔离彼此，应被视为兄弟物种。根据形态特征，异配交配似乎不太可能是两组之间的生殖隔离机制。
Morphometric and meristic characteristics were compared between two genetically divergent groups ofLethenteron reissneri, collected from Hokkaido and Honshu islands, Japan. Whereas significant differences were found in some morphometric and meristic characters, the ranges overlapped somewhat in all of the characters examined between the two groups. Thus, it was difficult to distinguish exactly between the two groups using only the morphological characters. In sympatric populations of the two groups, no significant differences were found in almost all of the morphometric and meristic characters examined. The two groups ofL. reissneri, which are reproductively isolated from each other, should be regarded as sibling species. Assortative mating, based on morphological features, appears unlikely as the reproductive isolating mechanism between the two groups.