scholarly journals Characterization of the complete mitogenome of Haifa grouper, Hyporthodus haifensis (Perciformes: Serranidae), and its phylogenetic position within Epinephelini

2021 ◽  
Vol 6 (4) ◽  
pp. 1287-1289
Author(s):  
Noel Vella ◽  
Adriana Vella
Plant Disease ◽  
2018 ◽  
Vol 102 (11) ◽  
pp. 2083-2100 ◽  
Author(s):  
Beatriz Mora-Sala ◽  
Ana Cabral ◽  
Maela León ◽  
Carlos Agustí-Brisach ◽  
Josep Armengol ◽  
...  

Cylindrocarpon-like asexual morphs infect herbaceous and woody plants, mainly in agricultural scenarios, but also in forestry systems. The aim of the present study was to characterize a collection of Cylindrocarpon-like isolates recovered from the roots of a broad range of forest hosts from nurseries showing decline by morphological and molecular studies. Between 2009 and 2012, 17 forest nurseries in Spain were surveyed and a total of 103 Cylindrocarpon-like isolates were obtained. Isolates were identified based on DNA sequences of the partial gene regions histone H3 (his3). For the new species, the internal transcribed spacer and intervening 5.8S nrRNA gene (ITS) region, β-tubulin (tub2), and translation elongation factor 1-α (tef1) were also used to determine their phylogenetic position. Twelve species belonging to the genera Cylindrodendrum, Dactylonectria, and Ilyonectria were identified from damaged roots of 15 different host genera. The species C. alicantinum, D. macrodidyma, D. novozelandica, D. pauciseptata, D. pinicola, D. torresensis, I. capensis, I. cyclaminicola, I. liriodendri, I. pseudodestructans, I. robusta, and I. rufa were identified. In addition, two Dactylonectria species (D. hispanica sp. nov. and D. valentina sp. nov.), one Ilyonectria species (I. ilicicola sp. nov.), and one Neonectria species (N. quercicola sp. nov.) are newly described. The present study demonstrates the prevalence of this fungal group associated with seedlings of diverse hosts showing decline symptoms in forest nurseries in Spain.


PLoS ONE ◽  
2019 ◽  
Vol 14 (9) ◽  
pp. e0219523 ◽  
Author(s):  
Luis Martinez-Villegas ◽  
Juliana Assis-Geraldo ◽  
Leonardo B. Koerich ◽  
Travis C. Collier ◽  
Yoosook Lee ◽  
...  

2019 ◽  
Vol 94 (2) ◽  
pp. 366-377 ◽  
Author(s):  
Bryan M. Gee ◽  
Robert R. Reisz

AbstractNanobamus macrorhinus Schoch and Milner, 2014 is a small amphibamiform temnospondyl from the early Permian Arroyo Formation of Texas. It is most readily characterized by an elongate and partially subdivided naris. This condition is superficially reminiscent of that seen in the coeval trematopids, the group to which N. macrorhinus was originally referred to under an interpretation of the holotype as a larval form. This was discounted by later workers, but the amphibamiform affinities of the specimen were not formalized until recently. The specimen has never been described in the context of its amphibamiform affinities and remains poorly characterized, never having been sampled in a phylogenetic analysis. Here we present a complete, updated osteological description of N. macrorhinus, including an improved characterization of its unique mosaic of plesiomorphic and apomorphic features and clarification of the taxon's autapomorphies. Our analysis of the taxon's phylogenetic position within Amphibamiformes shows that N. macrorhinus was recovered as diverging after basal amphibamiforms, e.g., the micropholids, and before derived amphibamiforms, e.g., the amphibamids. This is supported by the unique mixture of retained plesiomorphies, e.g., nonforeshortened postparietals and an oval choana, and apomorphies, e.g., a narrow interorbital region and slender palatal rami of the pterygoid. These results reflect the complexity of terrestrial amphibamiform diversity and provide further insight into the evolutionary history of the lissamphibian stem in terrestrial environments.


2019 ◽  
Vol 59 (4) ◽  
pp. 811-818 ◽  
Author(s):  
Nikki Traylor-Knowles ◽  
Lauren E Vandepas ◽  
William E Browne

Abstract Innate immunity is an ancient physiological response critical for protecting metazoans from invading pathogens. It is the primary pathogen defense mechanism among invertebrates. While innate immunity has been studied extensively in diverse invertebrate taxa, including mollusks, crustaceans, and cnidarians, this system has not been well characterized in ctenophores. The ctenophores comprise an exclusively marine, non-bilaterian lineage that diverged early during metazoan diversification. The phylogenetic position of ctenophore lineage suggests that characterization of the ctenophore innate immune system will reveal important features associated with the early evolution of the metazoan innate immune system. Here, we review current understanding of the ctenophore immune repertoire and identify innate immunity genes recovered from three ctenophore species. We also isolate and characterize Mnemiopsis leidyi cells that display macrophage-like behavior when challenged with bacteria. Our results indicate that ctenophores possess cells capable of phagocytosing microbes and that two distantly related ctenophores, M. leidyi and Hormiphora californiensis, possess many candidate innate immunity proteins.


Gene Reports ◽  
2019 ◽  
Vol 17 ◽  
pp. 100499 ◽  
Author(s):  
Leonard Whye Kit Lim ◽  
Jill Sela Roja ◽  
Cynthia Keranti Anak Kamar ◽  
Hung Hui Chung ◽  
Yunshi Liao ◽  
...  

2020 ◽  
Vol 5 (3) ◽  
pp. 2665-2667
Author(s):  
Lichun Jiang ◽  
Xia Zhu ◽  
Jing He ◽  
Ximin Fu ◽  
Xiwen Chen ◽  
...  

2013 ◽  
Vol 668 ◽  
pp. 924-927
Author(s):  
Hong Sheng Lu ◽  
Long Qing Shi

A chemolithoautotrophic growth bacterium KP1-50T was isolated from 22-year-old volcanic deposits of Miyake-jima island (Japan) in this study. Its chemolithoautotrophic growth was tested using mineral salt medium (MS) medium under the atmosphere of H2, O2 and CO2. Phenotypic tests were mainly done with API 20NE kit system (bioMérieux). Phylogenetic position was determined by constructing the system tree. Chemolithoautotrophic growth of strain KP1-50T was proved by its growth curve with OD660 value of 0.5. The phylogenetic analysis based on 16S rDNA gene sequences indicated that sequence similarity between this strain and Herbaspirillum seropedicae LMG 6513T was 97%. The major cellular fatty acids are C16:0(31.3%), C16:1w7c/C15:0 2-OH iso (26.5%), C18:1 iso/trans (22.7%). The DNA G+C content of strain KP1-50T was 58mol%. DNA-DNA relatedness between strain KP1-50T and H.seropedicae LMG6513T, H.putei NBRC102406T and H.rubrisubalbicans NBRC102523T were 14.7%, 22.7% and 12.5% respectively. Strain KP1-50T seemed to be a novel species of the genus Herbaspicrillum, its accession number was AB366195 and the name of Herbaspirillum chemorialis sp. nov. was proposed.


Parasitology ◽  
2010 ◽  
Vol 138 (3) ◽  
pp. 381-393 ◽  
Author(s):  
PAVLA BARTOŠOVÁ ◽  
MARK A. FREEMAN ◽  
HIROSHI YOKOYAMA ◽  
MONICA CAFFARA ◽  
IVAN FIALA

SUMMARYAn amendment of the family Sinuolineidae (Myxosporea) is proposed in order to include a newly described genus Latyspora n. gen. The type species Latyspora scomberomori n. gen. n. sp. is a coelozoic parasite in the kidney tubules of Scomberomorus guttatus. In addition to the morphological and molecular characterization of L. scomberomori n. gen. n. sp., we also present novel SSU rDNA data on Sphaerospora testicularis, a serious parasite of Dicentrarchus labrax. Performed phylogenetic analyses revealed that both species cluster within the marine urinary clade encompassing the representatives with a shared insertion within their V4 SSU rRNA region and grouping according to the shape of their spores’ sutural line and their similar tissue tropism in the host. Sphaerospora testicularis is the closest relative to Parvicapsula minibicornis within the Parvicapsula subclade and L. scomberomori n. gen. n. sp. is the basal species of the Zschokkella subclade. The phylogenetic position of S. testicularis, outwith the basal Sphaerospora sensu stricto clade, and its morphology suggest it being a non-typical Sphaerospora. The sequence data provided on S. testicularis can help in future revisions of the strongly polyphyletic genus Sphaerospora. We recommend re-sequencing of several sphaerosporids as an essential step before such taxonomic changes are accomplished.


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