Fagopyrum longistylum (Polygonaceae), a new species from Sichuan, China
文献类型: 外文期刊
第一作者: Zhang, Kaixuan
作者: Zhang, Kaixuan;Fan, Yu;Weng, Wenfeng;Tang, Yu;Zhou, Meiliang;Tang, Yu
作者机构:
关键词: Buckwheat; Fagopyrum F. gracilipes; new species
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: 2021 年 482 卷 2 期
页码:
收录情况: SCI
摘要: A new species of Fagopyrum (Polygonaceae), Fagopyrum longistylum, is described and illustrated from Huili County, Sichuan Province, China on the basis of morphological, caryological, and molecular data. F. longistylum is morphologically similar to F. gracilipes from which it differs in having green stem and short-styled flowers with long anther but it is self compatible. In addition, F. longistylum is a diploid species with 2n=2x=16 while F. gracilipes is tetraploid with 4n=4x=32. Molecular data based on nucleotide sequence polymorphisms of internal transcribed spacers (ITSs) and the maturase K (matK) gene confirm the separation of the new species.
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