Molecular phylogeny of Nipponacmea (Patellogastropoda, Lottiidae) from Japan: a re-evaluation of species taxonomy and morphological diagnosis.

Autor: Teruya S; Okinawa Prefectural Deep Sea Water Research Center, 500-1 Maja, Kumejima-cho, Okinawa 901-3104, Japan Okinawa Prefectural Deep Sea Water Research Center Okinawa Japan.; The University Museum, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan The University of Tokyo Tokyo Japan., Setiamarga DHE; The University Museum, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan The University of Tokyo Tokyo Japan.; Department of Applied Chemistry and Biochemistry / Ecosystem Engineering, National Institute of Technology (KOSEN), Wakayama College, 77 Noshima, Nada-cho, Gobo-shi, Wakayama, 644-0023, Japan Department of Applied Chemistry and Biochemistry / Ecosystem Engineering, National Institute of Technology (KOSEN) Wakayama Japan., Nakano T; Seto Marine Biological Laboratory, Field Science Education and Research Centre, Kyoto University, 459 Shirahama, Wakayama, 649-2211, Japan Kyoto University Wakayama Japan., Sasaki T; The University Museum, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan The University of Tokyo Tokyo Japan.
Jazyk: angličtina
Zdroj: ZooKeys [Zookeys] 2022 Feb 25; Vol. 1087, pp. 163-198. Date of Electronic Publication: 2022 Feb 25 (Print Publication: 2022).
DOI: 10.3897/zookeys.1087.78193
Abstrakt: The patellogastropod limpet genus Nipponacmea is widely distributed in Japan and adjacent East Asia. Species identification within Nipponacmea is challenging due to the high variation in shell morphology. In this study, we examined the taxonomy of this genus represented by nine nominal species from 43 localities (including type localities). Results of the molecular phylogenetic analysis revealed that: (1) N.gloriosa , the sole species in this genus inhabiting the subtidal zone, represents the most basal independent branch; (2) the remaining species are divided into two large clades with lower- and higher-apex shell profiles; and (3) the high-apex morphology was derived from the low-apex type. The terminal clades defined using the molecular data were consistent with nine morphospecies and had 100% bootstrap values, strongly supporting the conventional taxonomy of Nipponacmea . Although morphological similarities do not always reflect phylogeny, the set of morphological characters used in the current taxonomy were proven to be adequate for diagnosis. In conclusion, this study provided solid evidence to uphold the monophyly of known species of Nipponacmea in Japan and demonstrated the usefulness of morphological characters for species diagnosis.
(Shinnosuke Teruya, Davin H. E. Setiamarga, Tomoyuki Nakano, Takenori Sasaki.)
Databáze: MEDLINE
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