کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6142922 | 1228215 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Genetic diversity and population structure of Sugarcane mosaic virus
ترجمه فارسی عنوان
تنوع ژنتیکی و ساختار جمعیت ویروس موزاییک قند
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کلمات کلیدی
ساختار ژنتیکی، دوباره سازی فشار انتخاب
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
ویروس شناسی
چکیده انگلیسی
Sugarcane mosaic virus (SCMV) is one of the causal pathogens of mosaic diseases on sugarcane, maize, sorghum and some other graminaceous species with worldwide distribution. The global genetic diversity and molecular evolution of SCMV capsid protein (CP) gene were investigated with the nucleotide sequences available in the GenBank database. Phylogenetic analyses revealed that SCMV isolates clustered in relation to their original hosts, and geographically distinct isolates from maize or sugarcane clustered differently. The populations between maize and sugarcane showed frequent gene flows; but within maize or sugarcane geography distinct isolates had infrequent gene flow. Recombination existed in the region of CP cistron and 3â²-untranslated region (UTR). Most of the codons in the CP gene were under negative selection or neutral evolution except for codons 27 and 48, which were under positive selection. This study provided systematic analyses of the evolutionary processes contributing to the observed diversification of SCMV populations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Virus Research - Volume 171, Issue 1, January 2013, Pages 242-246
Journal: Virus Research - Volume 171, Issue 1, January 2013, Pages 242-246
نویسندگان
Yongqiang Li, Ruiying Liu, Tao Zhou, Zaifeng Fan,