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A new distribution record of Chrysosplenium grayanum Maxim. (Saxifragaceae) in Korea: Evidence from morphological and molecular data
인경호 (영광군청)
김봉석 (한반도 자생생물연구회)
김경희 (국립생물자원관)
김진석 (국립생물자원관)
김용인 (한림대학교)
이병윤 (국립생물자원관)
임채은 (국립생물자원관 유용자원분석과)
Abstract
Chrysosplenium grayanum Maxim. (Series Nepalensia), which had been known to be restricted to Japan, was newly discovered from Mt. Cheongtae in Yeonggwang-gun, Jeollanam-do, located in the southern part of the Korean Peninsula. Species identification was confirmed using morphological characteristics and DNA sequence data, while comparing with materials obtained from Japan and herbarium specimens. Chrysosplenium grayanum is clearly distinguished from the remaining taxa of the genus Chrysosplenium by having glabrous plant body, opposite leaves, cylindrical papillae with roundish head at the tip on the smooth seed surface, and four stamens. Molecular sequence data of the nuclear ribosomal ITS regions, chloroplast rbcL and matK genes strongly supported that this previously unknown Chrysosplenium species from Korea is C. grayanum. Taking the molecular and the morphological evidence into consideration, it is clear that newly discovered Chrysosplenium population in Korea is conspecific with the widely distributed C. grayanum in Japan. In this paper, we provide a description, illustration, and photo images of Chrysosplenium grayanum from Korea and also a key to the Chrysosplenium species in Korea.
- keywords
- Chrysosplenium grayanum, Chrysosplenium, Saxifragaceae, nrITS, cp rbcL and matK genes
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