Allozyme variation within and between populations inLolium (Poaceae)
Allozyme variation within and between populations inLolium (Poaceae)
复制标题
黑麦草（禾本科）种群内和种群间同种酶变异
DOI：
10.1007/bf00937839
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发表时间：
2004
影响因子：
1.9
通讯作者：
B. P. Loos
中科院分区：
文献类型：
--
作者：
B. P. Loos
采用同工酶分析方法，分析了7种豆科植物种群内和种群间的遗传变异。所有的近交种群(L.temulentum，L.Remumum，L.loliaceum，L.Persicum)是完全固定的，所有的酶得分。对于所研究的五种酶系统中的四种，它们也含有完全相同的等位基因变异。三个杂交种的种群内变异较大，种群间变异较小。在所有物种中发现的等位酶变异的极大相似性，使得根据等位酶数据将Lolium属划分为种是困难的。不同的近亲交配物种是不可能彼此分开的。在杂交群体L中。多花和L.Rigidon可与ML区别开来。常春藤。L.何首乌和L.更困难的是，刚性也可以彼此分开。等位基因变异可能更多地与种群的种源有关，而不是与分类有关。
Isozyme analysis was used to determine genetic variation within and between populations of sevenLoliumspecies. All populations from the inbreeding species (L. temulentum, L. remotum, L. loliaceum, andL. persicum) were completely fixed for all enzymes scored. They also contained, for four of the five enzyme systems studied, exactly the same allelic variant. The three cross-breeding species showed large within-population variation and much less between-population variation. The great similarity of the allozymic variants found in all species, made the division of the genusLoliuminto species on basis of allozymic data difficult. It was not possible to separate the different inbreeding species from each other. Within the cross-breeding groupL. multiflorumandL. rigidumcould be distinguished fromL. perenne. L. multiflorum, andL. rigidumcould, with more difficulty, also be separated from each other. Allelic variation could have more relation with the provenance of the populations than with taxonomic classification.