Substantial incongruence among the morphology, taxonomy, and molecular phylogeny of the land snails Aegista, Landouria, Trishoplita, and Pseudobuliminus (Pulmonata: Bradybaenidae) occurring in East Asia

2014 ◽  
Vol 70 ◽  
pp. 171-181 ◽  
Author(s):  
Takahiro Hirano ◽  
Yuichi Kameda ◽  
Kazuki Kimura ◽  
Satoshi Chiba
Author(s):  
Ya-Lian Wang ◽  
Jin-Ming Lu ◽  
Yuan Zhang ◽  
Hong-Wei Chen

Abstract The Stegana (Steganina) shirozui species group is mainly distributed in East Asia. In the present study, the molecular phylogeny of the S. shirozui group was investigated based on mitochondrial (COI and ND2) and nuclear (28S rRNA) markers. The resulting trees support the S. shirozui group as monophyletic and indicate that in this group, species associated with closer affinities show higher structural homogeneity in male genitalia. Molecular species delimitation assess most species limits and recognize four new species in the S. shirozui group from south-west China: S. alianya sp. nov., S. diodonta sp. nov., S. zebromyia sp. nov. and S. zopheria sp. nov. One new synonym was also recognized. Additionally, three typical male genital characters of the S. shirozui group were placed on the molecular phylogenetic framework. The outcome of both divergence-time estimation and ancestral area reconstruction suggests that the S. shirozui group likely originated in south-west China in the Middle Miocene.


2021 ◽  
Author(s):  
Feng Chen ◽  
Ge Xue ◽  
Yeke Wang ◽  
Hucai Zhang ◽  
Peter D. Clift ◽  
...  

Abstract The Yangtze River is the longest river in Asia, but its evolutionary history has long been debated. So far no robust biological evidences can be found to crack this mystery. Here we reconstruct spatiotemporal and diversification dynamics of endemic East Asian cyprinids based on a largest molecular phylogeny of Cyprinidae, including 1420 species, and show that their ancestors laying adhesive eggs were distributed in southern East Asia before ~24 Ma, subsequently dispersed to the Yangtze River to spawn semi-buoyant eggs at ~19 Ma. This indicates that the Yangtze River diverted eastward around the Oligocene-Miocene boundary. Some of these cyprinids evolved again into fishes producing adhesive eggs at ~13 Ma, together with a peaked net diversification rate, indicating that the river formed a potamo-lacustrine ecosystem during the Mid-Miocene. Our reconstruction of the history of the Yangtze River has higher time resolution and much better continuity than those deriving from geological studies.


PhytoKeys ◽  
2021 ◽  
Vol 187 ◽  
pp. 161-176
Author(s):  
Yi-Hsuan Wu ◽  
Chih-Yun Sun ◽  
Atsushi Ebihara ◽  
Ngan Thi Lu ◽  
Germinal Rouhan ◽  
...  

Two East Asian Lomariopsis (Lomariopsidaceae, Polypodiales) species, Lomariopsis moorei and Lomariopsis longini, which were previously misidentified as L. spectabilis, are here described as new species based on evidence from morphological characters and a molecular phylogeny. The two species differ from the three other described species in East Asia by their venation, pinna shapes, and perine morphology. A phylogeny based on a combined dataset of three chloroplast regions (rbcL+ rps4-trnS + trnL-L-F) showed that L. moorei and L. longini each formed a well-supported monophyletic group which was distantly related to both L. spectabilis and the other morphologically similar East Asian species, L. boninensis.


Zootaxa ◽  
2011 ◽  
Vol 2929 (1) ◽  
pp. 51-56
Author(s):  
WEI-CHUAN ZHOU ◽  
QIONG XIAO ◽  
DE-NIU CHEN ◽  
CHUNG-CHI HWANG

The terrestrial snail genus Ganesella Blanford, 1863, sensu lacto by Zilch (1959–1960), is mainly distributed in the Oriental region from Japan, through south of the Yangtze of China to South-east and South Asia. Most of these land snails are endemic species with narrow geographic distribution (Tryon 1888; Pilsbry 1894; Zilch 1959–1960, 1966; Richardson 1985, Chen & Gao 1987; Azuma 1995). The genus is characterized in having thin, smooth or weakly ridged shell, slightly descent body whorl in front, toothless aperture, expanded to reflected lips, long and narrow foot, long penis with a caecum (= penial appendix) and a flagellum. However, the anatomical characters of the type species, G. capitium Benson, 1848, are still wanting. A major part of its members have been assigned to different genus according to shell characters. The species in East-Asia, i.e., Japan, Korea and Taiwan, were assigned to the genus Satsuma (+ syn. Coniglobus Pilsbry & Hirase, 1906 and Luchuhadra Kuroda & Habe, 1949). About 100 species are still catalogued in Ganesella (Richardson 1985).


2014 ◽  
Vol 13 (4) ◽  
Author(s):  
Kuan Zhao ◽  
Gang Wu ◽  
Bang Feng ◽  
Zhu L. Yang

2002 ◽  
Vol 269 (1500) ◽  
pp. 1563-1569 ◽  
Author(s):  
David J. Gower ◽  
Alex Kupfer ◽  
Oommen V. Oommen ◽  
Werner Himstedt ◽  
Ronald A. Nussbaum ◽  
...  

Phytotaxa ◽  
2015 ◽  
Vol 202 (4) ◽  
pp. 298 ◽  
Author(s):  
GUO-XIONG HU ◽  
HUA PENG

Salvia Linnaeus (1753: 23) (tribe Mentheae, subfamily Nepetoideae) is by far the largest genus of Lamiaceae with approximately 1000 species (Alziar 1988–1993). Molecular phylogeny researches demonstrate that the genus is polyphyletic, and the clade “Salvia” in effect includes four distinct lineages, with intercalation of five other genera of tribe Mentheae (Walker et al. 2004, Walker & Sytsma 2007, Takano & Okada 2011, Will & Claßen-Bockhoff 2014). East Asia is one of three centers of diversity of Salvia with approximately 100 species (Walker et al. 2004), 82 species are native to China (Li & Hedge 1994, Hu et al. 2014). Additionally, S. coccinea Buc’hoz ex Etlinger (1777: 23) and S. tiliifolia Vahl (1794: 3), which are native to Central and South America, have naturalized successfully in China (Li & Hedge 1994, Hu et al. 2013).


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