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http://dx.doi.org/10.12651/JSR.2020.9.1.046

A new distribution record of Chrysosplenium grayanum Maxim. (Saxifragaceae) in Korea: Evidence from morphological and molecular data  

Choi, Ji-Eun (National Institute of Biological Resources)
In, Kyung-Ho (Yeonggwang County office)
Kim, Bong Seok (The Society for Korean Peninsula Plants)
Kim, Kyeonghee (National Institute of Biological Resources)
Kim, Jin-Seok (National Institute of Biological Resources)
Kim, Yong-In (Multidisciplinary Genome Institute, Hallym University)
Lee, Byoung Yoon (National Institute of Biological Resources)
Lim, Chae Eun (National Institute of Biological Resources)
Publication Information
Journal of Species Research / v.9, no.1, 2020 , pp. 46-55 More about this Journal
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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