Molecular phylogeny and cryptic morphology reveal a new genus of West Indian woody bamboo (Poaceae: Bambusoideae: Bambuseae) hidden by convergent character evolution

Taxon ◽  
2018 ◽  
Vol 67 (5) ◽  
pp. 916-930 ◽  
Author(s):  
Christopher D. Tyrrell ◽  
Ximena Londoño ◽  
Ramona Oviedo Prieto ◽  
Lakshmi Attigala ◽  
Katelyn McDonald ◽  
...  
2021 ◽  
Vol 12 ◽  
Author(s):  
Qi Gao ◽  
Chen Shao ◽  
Qiuyue Tang ◽  
Jingbao Li

The morphology and morphogenesis of Pseudosincirra longicirrata nov. gen. and nov. comb., isolated from southern China, were investigated with living observation and protargol staining. Our population is similar to the original population in living characteristics and ciliary patterns. The main determinable morphogenetic features of P. longicirrata nov. comb. are the presence of five frontoventral-transverse cirral anlagen (FVT-anlagen) and a dorsomarginal kinety anlage. According to the origin of FVT-anlagen IV and V in proter, it can be determined that P. longicirrata nov. comb. possesses two frontoventral rows and one right marginal row. Hence, a new genus, Pseudosincirra nov. gen., is proposed, and the diagnosis of P. longicirrata nov. comb. is improved. The new genus is diagnosed as follows: adoral zone of membranelles and undulating membranes is in a Gonostomum pattern; there are three enlarged frontal cirri, one buccal cirrus, and one parabuccal cirrus; postperistomial cirrus and transverse cirri are lacking; there are two more or less long frontoventral rows and one right and two or more left marginal rows; cirri within all rows very widely spaced; dorsal kinety pattern is of Urosomoida type, that is, three dorsal kineties and one dorsomarginal kinety; and caudal cirri are present. Phylogenetic analyses based on the small subunit ribosomal (SSU rDNA) sequence data indicate that P. longicirrata nov. comb. clusters with Deviata and Perisincirra. It is considered that Pseudosincirra nov. gen. and Perisincirra paucicirrata should be assigned to the family Deviatidae; fine cirri, and cirri within all rows being relatively widely spaced, should be considered as plesiomorphies of Deviatidae; and Deviatidae is closely related to Dorsomarginalia or Strongylidium–Hemiamphisiella–Pseudouroleptus.


Author(s):  
Santosh Kumar Rana ◽  
Dong Luo ◽  
Hum Kala Rana ◽  
Shaotian Chen ◽  
Hang Sun

2012 ◽  
Vol 58 (6) ◽  
pp. 837-850 ◽  
Author(s):  
Lanping Zheng ◽  
Junxing Yang ◽  
Xiaoyong Chen

Abstract The Labeoninae is a subfamily of the family Cyprinidae, Order Cypriniformes. Oromandibular morphology within the Labeoninae is the greatest among cyprinid fishes. Although several phylogenetic studies about labeonines have been undertaken the results have been inconsistent and a comprehensive phylogeny is needed. Further, an incongruence between morphological and molecular phylogeny requires a systematic exploration of the significance of morphological characters on the basis of the molecular phylogeny. In this study, a total of 292 nucleotide sequences from 73 individuals (representing 24 genera and 73 species) of Labeoninae were analyzed. The results of the phylogenetic analysis indicate that there are four major clades within Labeoninae and three monophyletic lineages within the fourth clade. Results of the character evolution show that all oroman-dibular morphological characters are homoplastically distributed on the molecular phylogenetic tree and suggests that these characters evolved several times during the history of labeonines. In particular, the labeonine , a specific disc on the lower lip, has been acquired three times and reversed twice. These morphological characters do not have systematic significance but can be useful for taxonomy. The results of biogeography suggest that the Labeoninae originated from Southeast Asia and separately dispersed to Africa, East Asia and South Asia.


2013 ◽  
Vol 43 (6) ◽  
pp. 427-437 ◽  
Author(s):  
Minoru Nakao ◽  
Antti Lavikainen ◽  
Takashi Iwaki ◽  
Voitto Haukisalmi ◽  
Sergey Konyaev ◽  
...  

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0177644 ◽  
Author(s):  
Naresh M. Meshram ◽  
Pathour R. Shashank ◽  
Twinkle Sinha

Zootaxa ◽  
2017 ◽  
Vol 4312 (2) ◽  
pp. 355 ◽  
Author(s):  
MENGLIN WANG ◽  
THIERRY BOURGOIN ◽  
YALIN ZHANG

Three new Oriental Issidae genera and two new species identified by a previous molecular phylogeny analysis are described. Two new genera belong to the tribe Kodaianellini: Kodaianellissus gen. nov., type species: K. intorqueus sp. nov. from China and Tetricissus gen. nov., type species: T. philo (Fennah, 1978) from Vietnam. Another new genus representing Sarimini: Longieusarima gen. nov., type species: L. lunulia sp. nov. is described from China. 


IMA Fungus ◽  
2013 ◽  
Vol 4 (1) ◽  
pp. 57-69 ◽  
Author(s):  
Thomas Læssøe ◽  
Prasert Srikitikulchai ◽  
J. Jennifer ◽  
D. Luangsa-ard ◽  
Marc Stadler

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