A morpho-molecular re-appraisal of Polystigma fulvum and P. rubrum (Polystigma, Polystigmataceae)
文献类型： 外文期刊
作者： Bundhun, Digvijayini 1 ; Jeewon, Rajesh 3 ; Dayarathne, Monika C. 1 ; Bulgakov, Timur S. 6 ; Khramtsov, Alexande 1 ;
作者机构： 1.Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand
2.Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Div Plant Pathol, Chiang Mai 50200, Thailand
3.Univ Mauritius, Fac Sci, Dept Hlth Sci, Reduit, Mauritius
4.World Agroforestry Ctr East & Cent Asia Off, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China
5.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Biodivers & Biogeog East Asia KLPB, Kunming 650201, Yunnan, Peoples R China
6.Russian Res Inst Floriculture & Subtrop Crops, 2-28 Yana Fabritsiusa St, Soci 354002, Krasnodar Regio, Russia
7.Belarusian State Univ, Dept Bot, 4 Nezavisimosti Av, Minsk 220030, BELARUS
8.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Environm Friendly Management Frui, Inst Plant & Environm Protect, Beijing, Peoples R China
关键词： biotrophs; molecular phylogeny; Rosaceae; taxonomy; Xylariomycetidae
期刊名称：PHYTOTAXA （ 影响因子：1.171； 五年影响因子：1.196 ）
ISSN： 1179-3155
年卷期： 2019 年 422 卷 3 期
页码：
收录情况： SCI
摘要： Collections of eleven Prunus specimens infected with Polystigma species from Belarus and Russia yielded two existing taxa: Polystigma fulvum (sexual moipli) and Polystigma rubrum (asexual morph). DNA based phylogenies of large subunit nuclear rDNA (LSU) and nuclear ribosomal internal transcribed spacer (ITS) are provided for the first time for Polystigma fulvum and its placement is confirmed within Polystigmataceae. The concatenated LSU and ITS DNA sequence data for P. rubrum, analyzed to infer its potential relationship to other Polystigma species, also show that strains of P. rubrum are segregated into two subclades with sufficient genetic differences. No significant differences in morphology or morphometry among the strains of P. rubrum between the two subclades, especially vis-a-vis the conidiogenous cell and conidium sizes are observed (P>0.05). Subspecies concept of P. rubrum complex is discussed.
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