ハセガワ　ナオヒロ   HASEGAWA Naohiro   長谷川　尚弘    所属   広島修道大学  人間環境学部    職種   助教
言語種別	英語
発行・発表の年月	2022/07
形態種別	学術論文
査読	査読有り
標題	Molecular phylogeny of the genus Nipponnemertes (Nemertea: Monostilifera: Cratenemertidae) and descriptions of 10 new species in a newly discovered clade
執筆形態	共著
掲載誌名	Frontiers in Marine Science
掲載区分	国外
出版社・発行元	Frontiers
巻・号・頁	26
頁数	36
担当範囲	本研究で記載された新種のひとつであるコザスジナシヒモムシの採集のために、串本町での採集許可をとり、現地での採集活動を行う海産無脊椎動物相調査を主催した。
著者・共著者	◎Natsumi Hookabe, Hiroshi Kajihara, Alexei Chernyshev V, Naoto Jimi, Naohiro Hasegawa, Hisanori Kohtsuka, Masanori Okanishi, Kenichiro Tani, Yoshihiro Fujiwara, Shinji Tsuchida, Rei Ueshima
概要	Nemerteans occur from intertidal to hadal depths, yet molecular data remain biased toward shallow-water taxa. The genus Nipponnemertes, distributed worldwide, had molecular phylogenies for only six of 18 species. We analyzed 59 specimens representing 23 species using two mitochondrial (16S, COI) and three nuclear genes (18S, 28S, H3). Extensive sampling from intertidal to bathyal zones in the Northwest Pacific expanded the known fauna from four to 17 species, including 10 described here as new. Our phylogeny revealed three major clades distinguished by head morphology: Clade A with demarcated head lacking cephalic patches; Clade B with demarcated head and cephalic patches; and Clade C with non-demarcated head lacking patches. We also discuss the evolution of small body size retained in Clade C. 担当部分：21頁