Phylogeny of the genus Morus (Urticales : Moraceae) inferred from ITS and trnL-F sequences
文献类型: 外文期刊
第一作者: Zhao, WG
作者: Zhao, WG;Pan, YL;Zhang, ZF;Jia, SH;Miao, XX;Huang, YP
作者机构:
关键词: Morus;phylogeny;ITS;trnL-F
期刊名称:AFRICAN JOURNAL OF BIOTECHNOLOGY ( 影响因子:0.573; 五年影响因子:0.794 )
ISSN: 1684-5315
年卷期: 2005 年 4 卷 6 期
页码:
收录情况: SCI
摘要: Both nuclear ribosomal ITS and chloroplast trnL-F sequences were acquired from 13 mulberry genotypes belonging to nine species and three varieties, and one paper mulberry. The later belongs to genus B. papyrifera, designed as outgroup, and were analyzed. Within the genus Morus, the sequence diversity of ITS was much higher than that of trnL-F. The results of phylogenetic analyses based on these data ( separately or combined) show that the genus Morus is monophyletic group. Strict consensus tree obtained through the Neighbor-joining method can be divided into five major clades in the genus Morus, according to combined sequence data. M. bombycis, M. alba var. venose formed clades A and B, respectively. Clade C comprises of 5 species; M. rotundiloba, M. atropurpurea, M. mongolica, M. australi, and M. mongolica var. diabolica. Clade D comprises of 3 species; M. wittiorum, M. laevigata, and M. alba. Clade E comprises of 2 species; M. multicaulis, and M. alba var. macrophylla. The results from cluster analysis were basically in agreement with the existing morphologic classification.
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