Genetic relationships among Stylosanthes species revealed by RFLP and STS analyses
Genetic relationships among Stylosanthes species revealed by RFLP and STS analyses
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DOI：
10.1007/s001220051322
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发表时间：
1999-11
影响因子：
5.4
通讯作者：
C. Liu;J. Musial;B. Thomas
中科院分区：
文献类型：
--
作者：
C. Liu;J. Musial;B. Thomas
采用RFLP和STS分析方法对柱花草属6个未分类分类群与24个已知种的亲缘关系进行了研究。这使得本研究中使用的二倍体分类群被划分为9个基础（基因组）群。在这些类群中有代表性的种有：S。seabrana / S。hamata (A组),S。人造丝(B组)。云淡的(C组)。macrocephala / S。bracteata (D组)。pilosa (E组)。leiocarpa (F组)。guianensis (G组)。毛囊（H组）手部。calcicola(集团)。根据推测的基因组结构，将多倍体分类群分为5类。这些是AABB代表s。作用,S.aff。作用,S。sericeiceps S.aff.hamataandS.tuberculata;协会的福尔斯得到消息。墨西哥,S。subsericea, S。sundaicaandS。sp.A;DDEE福尔斯得到消息。性的;AAFF福尔斯得到消息。sympodialis;AABBXX表示s。直立人，XX代表未知的基因组。未分类的6个类群中，3个为二倍体，3个为四倍体。在3个二倍体中，s。与本研究分析的所有其他二倍体相比，s。leiocarpape是最近的。s。sp.B与s . b .相似。Humilis，它们之间的平均差异值为15%。s .aff的基因组。粘胶与s的非常相似。人造丝。2个分类群之间的遗传变异不大于2个分类群内部的遗传变异。在3个四倍体中，s。sp.A与s . a .相似。墨西哥，圣代南。亚蚕蛹的基因组结构。aff.scabraandS。affa .hamata与s .hamata相似。scabraandS.sericeiceps。
Genetic relationships between 6 unclassified taxa and 24 known species of the genusStylosantheswere investigated by RFLP and STS analyses. This allowed the diploid taxa used in this study to be classified into nine basal (genome) groups. Representative species in these groups included ’S. seabrana’/S. hamata(Group A),S.viscosa(Group B),S. humilis(Group C),S. macrocephala/S. bracteata(Group D),S. pilosa(Group E),S.leiocarpa(Group F),S. guianensis(Group G),S. tomentosa(Group H) andS. calcicola(Group I). Polyploid taxa used were grouped into five classes based on their putative genomic structures. These are AABB forS.scabra, S.aff. scabra,S. sericeiceps, S.aff.hamataandS.tuberculata; AACC forS. mexicana,S. subsericea,S. sundaicaandS. sp.A; DDEE forS. capitata; AAFF forS. sympodialis; and AABBXX forS. erecta, with XX representing an unknown genome. Of the 6 unclassified taxa, three were diploids and 3 tetraploids. Of the 3 diploids, the genome ofS. sp. was markedly distinct from those of all other diploids analysed in this study, with that ofS. leiocarpabeing the closest. The genome ofS. sp.B was similar to that ofS. humilis, with an average dissimilarity value of 15% between them. The genome ofS.aff. viscosawas very similar to that ofS. viscosa. Genetic variation between these 2 taxa was not larger than that within each of the 2 taxa. Of the 3 tetraploids, the genomic structure ofS. sp.A was similar to those ofS. mexicana, S. sundaicaandS. subsericea, and the genomic structures ofS. aff.scabraandS. aff.hamatawere similar to those ofS. scabraandS.sericeiceps.