TY - JOUR
T1 - A narrow endemic or a species showing disjunct distribution? Studies on meehania montis-koyae ohwi (lamiaceae)
AU - Takano, Atsuko
AU - Sakaguchi, Shota
AU - Li, Pan
AU - Matsuo, Ayumi
AU - Suyama, Yoshihisa
AU - Xia, Guo Hua
AU - Liu, Xi
AU - Isagi, Yuji
N1 - Funding Information:
Funding: Thanks are expressed for the Japanese Society for the Promotion of Science (Bilateral Program “The spatial and temporal dimensions and underlying mechanisms of lineage divergence and plant speciation of keystone species in Sino-Japanese Forest subkingdom”), SICORP Program of the Japan Science and Technology Agency (Spatial-temporal dimensions and underlying mechanisms of lineage diversification and patterns of genetic variation of keystone plant taxa in warm-temperate forests of Sino-Japanese Floristic Region), and Environment Research and Technology Development Fund, Ministry of the Environment (grant no. 4-1605 and 4-1902), and National Natural Science Foundation of China (grant no. 31970225 to P.L.).
Funding Information:
Thanks are expressed for the Japanese Society for the Promotion of Science (Bilateral Program “The spatial and temporal dimensions and underlying mechanisms of lineage divergence and plant speciation of keystone species in Sino-Japanese Forest subkingdom”), SICORP Program of the Japan Science and Technology Agency (Spatial-temporal dimensions and underlying mechanisms of lineage diversification and patterns of genetic variation of keystone plant taxa in warm-temperate forests of Sino-Japanese Floristic Region), and Environment Research and Technology Development Fund, Ministry of the Environment (grant no. 4-1605 and 4-1902), and National Natural Science Foundation of China (grant no. 31970225 to P.L.). Acknowledgments: We deeply acknowledge the member of the Ochifuji club 2013, M. Sakoda, Emer. N. Kurosaki, and also Daiki Takahashi, Zheng-Hai Chen, Xing-Lv Xie, Mei-Zhen Wang for helping us in the field; Yao-Liang Xu, and Yang Zhang (Zhejiang Museum of Natural History), Ya-Hong Gao (Hangzhou Botanic Garden) for providing photos of Meehania in China; the directors of KYO, HHBG, HZU, ZJFC, ZM for allowing herbarium work. Late Masato Ohtani helped with BEAST analysis. Xinjie Jin performed the drawing. Our great appreciation is expressed to Theodor C. H. Cole (FU Berlin) for English language editing and valuable comments. Three anonymous referees gave us many constructive comments on earlier version of the manuscript.
Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2020/9
Y1 - 2020/9
N2 - Meehania montis-koyae Ohwi (Lamiaceae), which has been considered a narrow endemic and endangered species in Japan, was found in eastern China in 2011. China and Japan belong to the same floristic region and share many plant species, but it is very rare that Japanese narrow endemic species are newly found outside of the country. We examined herbarium specimens of both countries, and conducted analyses of molecular phylogenetics, population genetics, and divergence time estimation using two nuclear (ITS and ETS) gene regions and MIG-seq data. Chinese plants tend to become larger than Japanese, and they are different in leaf shape and floral features. Molecular phylogenetic analysis shows Chinese and Japanese M. montis-koyae are the closest relatives to each other. Population genetic analysis indicates no current gene flow between the Chinese and Japanese populations, and divergence time analysis shows they were separated during the late Miocene. We reach the conclusion that Chinese and Japanese M. montis-koyae have already become distinct biological entities, and a new taxon name Meehania zheminensis A. Takano, Pan Li, G.-H.Xia is proposed for the Chinese plants. A key to Asian Meehania species is provided.
AB - Meehania montis-koyae Ohwi (Lamiaceae), which has been considered a narrow endemic and endangered species in Japan, was found in eastern China in 2011. China and Japan belong to the same floristic region and share many plant species, but it is very rare that Japanese narrow endemic species are newly found outside of the country. We examined herbarium specimens of both countries, and conducted analyses of molecular phylogenetics, population genetics, and divergence time estimation using two nuclear (ITS and ETS) gene regions and MIG-seq data. Chinese plants tend to become larger than Japanese, and they are different in leaf shape and floral features. Molecular phylogenetic analysis shows Chinese and Japanese M. montis-koyae are the closest relatives to each other. Population genetic analysis indicates no current gene flow between the Chinese and Japanese populations, and divergence time analysis shows they were separated during the late Miocene. We reach the conclusion that Chinese and Japanese M. montis-koyae have already become distinct biological entities, and a new taxon name Meehania zheminensis A. Takano, Pan Li, G.-H.Xia is proposed for the Chinese plants. A key to Asian Meehania species is provided.
KW - Lamiaceae
KW - MIG-seq
KW - Meehania montis-koyae
KW - Population genetic analysis
KW - Sino-Japanese disjunct distribution
UR - http://www.scopus.com/inward/record.url?scp=85090686394&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090686394&partnerID=8YFLogxK
U2 - 10.3390/plants9091159
DO - 10.3390/plants9091159
M3 - Article
AN - SCOPUS:85090686394
VL - 9
SP - 1
EP - 16
JO - Plants
JF - Plants
SN - 2223-7747
IS - 9
M1 - 1159
ER -