A Phylogenetic Study in American Podocominae (Asteraceae: Astereae) Based on Morphological and Molecular Data

2008 ◽  
Vol 33 (4) ◽  
pp. 762-775 ◽  
Author(s):  
Gisela Sancho ◽  
Vesna Karaman-Castro
Zootaxa ◽  
2008 ◽  
Vol 1759 (1) ◽  
pp. 1 ◽  
Author(s):  
CORINNE M. UNRUH

A recent phylogenetic study of the scale insect tribe Iceryini (Hemiptera: Coccoidea: Monophlebidae) based on morphological and molecular data led to a revised generic classification, including redefinition of three genera, one of which was Crypticerya Cockerell. The new concept of Crypticerya encompasses 22 described species, all of which are found in the New World. Nine species are scattered throughout the deserts of the southwestern United States and Mexico. Here these species are redescribed and one new species, Crypticerya bursera sp.nov. is described from Baja California, Mexico. The adult female and first-instar nymph are illustrated for nine of the 10 species. A key to the adult females of the southwestern species and morphologically similar species of Crypticerya is provided.


2015 ◽  
Vol 29 (1) ◽  
pp. 37 ◽  
Author(s):  
Sarah L. Boyer ◽  
Caitlin M. Baker ◽  
Zachary R. Popkin-Hall ◽  
Domokos I. Laukó ◽  
Hannah A. Wiesner ◽  
...  

The Wet Tropics of Queensland, Australia, represent the largest remaining fragment of vast rainforests that once covered the entire continent. Over the past few decades the Wet Tropics bioregion has received much attention from biologists interested in the effect of climate change on diversity and distribution of rainforest animals. However, most such studies have focused on vertebrates, and despite considerable interest in the biota of the area, the diversity of many of Wet Tropics invertebrate taxa remains poorly known. Here we describe six new species of mite harvestman from the area, identified using a combination of morphological and molecular data. Our study represents the first detailed phylogenetic study of the genus Austropurcellia, and provides insight into the historical biogeography of these dispersal-limited arachnids.


Phytotaxa ◽  
2019 ◽  
Vol 405 (5) ◽  
pp. 255-262
Author(s):  
K. G. GREESHMA GANGA ◽  
PATINJAREVEETTIL MANIMOHAN

Parasola psathyrelloides sp. nov. is described from Kerala State, India, based on both morphological and molecular data. Comprehensive description, photographs, and comparisons with morphologically similar and phylogenetically related species are provided. Sequences of both the nuclear ribosomal internal transcribed spacer region (ITS) and the nuclear ribosomal large subunit (nLSU) region of the new species were obtained and used in BLASTn searches. The phylogenetic study was based on Maximum likelihood (ML) analysis of the ITS sequences.


2003 ◽  
Vol 81 (12) ◽  
pp. 1938-1946 ◽  
Author(s):  
Huanzhang Liu ◽  
Yiyu Chen

With 210 genera and 2010 species, Cyprinidae is the largest freshwater fish family in the world. Several papers, based on morphological and molecular data, have been published and have led to some solid conclusions, such as the close relationships between North American phoxinins and European leuciscins. However, the relationships among major subgroups of this family are still not well resolved, especially for those East Asian groups. In the present paper, the mitochondrial DNA (mtDNA) control region, 896–956 base pairs, of 17 representative species of East Asian cyprinids was sequenced and compared with those of 21 other cyprinids to study their phylogenetic relationships. After alignment, there were 1051 sites. The comparison between pairwise substitutions and HKY distances showed that the mtDNA control region was suitable for phylogenetic study. Phylogenetic analysis indicated that there are two principal lineages in Cyprinidae: Cyprinine and Leuciscine. In Cyprinine, the relationships could be a basal Labeoinae, an intermediate Cyprininae, and a diversified Barbinae (including Schizothroaxinae). In Leuciscine, Rasborinae is at the basal position; Gobioninae and Leuciscinae are sister groups; the East Asian cultrin–xenocyprinin taxa form a large mono phyl etic group with some small affiliated groups; and the positions of Acheilognathinae and Tincinae are still uncertain.


Phytotaxa ◽  
2014 ◽  
Vol 178 (4) ◽  
pp. 287
Author(s):  
Mehmet Fırat ◽  
Barış Özüdoğru ◽  
Burcu Tarıkahya Hacıoğlu ◽  
Ali Savaş Bülbül ◽  
Ihsan Ali Al-Shehbaz ◽  
...  

A general review of the taxonomic status of Thlaspi past and present is given, and a critical evaluations of its segregates based on both morphological and molecular data are  presented. ITS molecular phylogenetic study of Thlaspi aghricum and related species, as well as seed-coat morphology and anatomy strongly support the placement of the species in Noccaea. The new combination N. aghrica is proposed, and detailed description and distribution of the species are given.


Phytotaxa ◽  
2013 ◽  
Vol 116 (1) ◽  
pp. 1 ◽  
Author(s):  
DIEGO F. ANGULO ◽  
RODRIGO DUNO DE STEFANO ◽  
GREGORY W. STULL

Mappia includes four species of trees and shrubs distributed in Central America, Mexico and the Greater Antilles. Mappia has historically been associated with the genera Casimirella (=Humirianthera), Icacina, Leretia and Nothapodytes, collectively comprising the Mappia complex, and over the years authors have merged or maintained these genera based on various lines of morphological and anatomical evidence. Here we present a phylogenetic study of the Mappia complex, based on morphological and molecular data, to assess monophyly of Mappia as well as relationships among other icacinaceous genera. Our results indicate that Mappia is sister to the Asiatic genus Nothapodytes, consistent with previous studies, and that Leretia, Icacina and Casimirella form a clade more closely related to other genera of Icacinaceae (e.g., Alsodeiopsis, Iodes, Phytocrene) than to Mappia+Nothapodytes. These results support recognition of Mappia as a distinct entity, and here we provide an updated taxonomic treatment for the genus, recognizing four species including three from Mexico and Central America (M. longipes, M. mexicana, and M. multiflora) and one from the Greater Antilles (M. racemosa).


2019 ◽  
Author(s):  
Danny Haelewaters ◽  
Walter P. Pfliegler ◽  
Michał Gorczak ◽  
Donald H. Pfister

The class Laboulbeniomycetes comprises biotrophic parasites associated with arthropods and fungi. Two orders are currently recognized, Pyxidiophorales and Laboulbeniales. Herpomyces is an isolated genus of Laboulbeniales, with species that exclusively parasitize cockroaches (Blattodea). Here, we evaluate 39 taxa of Laboulbeniomycetes with a three-locus phylogeny (nrSSU, ITS, nrLSU) and propose a new order in this class. Herpomycetales accommodates a single genus, Herpomyces, with currently 26 species, one of which is described here based on morphological and molecular data. Herpomyces shelfordellae is found on Shelfordella lateralis cockroaches from Hungary, Poland, and the USA. We also build on the six-locus dataset from the Ascomycota Tree of Life paper (Schoch and colleagues, 2009) to confirm that Laboulbeniomycetes and Sordariomycetes are sister classes, and we apply laboulbeniomyceta as a rankless taxon for the now well-resolved node that describes the most recent common ancestor of both classes.


2020 ◽  
Vol 27 (6) ◽  
pp. 348-352
Author(s):  
Cai De Bo ◽  
Zening Chen ◽  
Jun Gao ◽  
Ding Li ◽  
Rong Dai

Parafimbrios has been reported in Laos, Thailand and Vietnam. In this paper, based on morphological and molecular data, Parafimbrios lao was reported as the first record of a genus and species of odd-scaled snake in China. This record extends the extent of occurrence to 65,000 km2 and the area of occurrence to 20 km2.


2019 ◽  
Vol 28 (2) ◽  
pp. 305-316
Author(s):  
M.A. Chursina ◽  
I.Ya. Grichanov

The recent catalogues of the family Dolichopodidae considered Syntormon pallipes (Fabricius, 1794) and S. pseudospicatus Strobl, 1899 as separate species. In this study, we used three approaches to estimate the significance of differences between the two species: molecular analysis (COI and 12S rRNA sequences), analysis of leg colour characters and geometric morphometric analysis of wing shape. The morphological data confirmed the absence of significant differences between S. pallipes and S. pseudospicatus found in the DNA analysis. Significant differences in the wing shape of two species have not been revealed. Hence, according to our data, there is no reason to consider S. pseudospicatus as a distinct species.


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