Results 21 to 30 of about 14,329 (219)
The complete mitochondrial genome of Paracheirodon axelrodi (Characiformes: Characidae) and phylogenetic studies of Characiformes [PDF]
Mitochondrial DNA Part B, 2019 The Paracheirodon axelrodi is an important freshwater fish in the Amazon basin of South America, more expensive than Paracheirodon innesi. Here, we describe the complete 17,100 base pair (bp) mitochondrial genome of Paracheirodon axelrodi mohavensis. The mitogenome has a nucleotide base composition of A (29.62%), T (29.41%), G (15.39%), and C (25.62%),
Yifan Liu +5 more
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An Insight into the Chromosomal Evolution of Lebiasinidae (Teleostei, Characiformes) [PDF]
Genes, 2020 Lebiasinidae fishes have been historically neglected by cytogenetical studies. Here we present a genomic comparison in eleven Lebiasinidae species, in addition to a review of the ribosomal DNA sequences distribution in this family. With that, we develop ten sets of experiments in order to hybridize the genomic DNA of representative species from the ...
Francisco de M. C. Sassi +13 more
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The complete mitochondrial genome of Gephyrocharax atracaudatus (Characiformes, Characidae) and phylogenetic studies of Characiformes [PDF]
Mitochondrial DNA Part B, 2019 Here, we report the complete mitochondrial genome sequence of Gephyrocharax atracaudatus. The genome is found to be 17,049 bp in length and has a base composition of A (29.95%), G (15.29%), C (26.13%) and T (28.63%). Similar to other Gephyrocharax species, it contains a typically conserved structure including 13 protein-coding genes, 2 rRNA genes, 1 ...
Youkun Huang +6 more
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Sperm phylogeny of Characidae (Teleostei, Characiformes)
Zoologica Scripta, 2022 AbstractThe phylogeny of the very diverse Neotropical fish family Characidae has been the subject of several recent contributions based on morphological characters, molecular data or both in combined analyses. In cases of conflict between these kinds of data, resolution by combined analyses most often tends to agree with the molecular evidence, given ...
Juan Marcos Mirande +3 more
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Mitochondrial DNA Part B, 2019 In the present study, the complete mitochondrial DNA sequence of was determined for the first time. The mitochondrial genome of Lebiasina astrigata is a circular molecule of 16,899 bp in size and contains 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and 2 control regions. The base composition is 30.02% for A, 15.34% for G, 27.24% for C, and 27.
Fang Meng +7 more
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Chromosomal characterization of three species of Serrasalmini (Serrasalmidae: Characiformes)
Genetics and Molecular Biology, 2023 The tribe Serrasalmini is a diverse group with paraphyletic genera and taxonomic uncertainties. Several studies have been carried out in this group of fish in order to understand this problem, including the cytogenetic approach. In this study, three species of a clade of Serrasalmini were characterized cytogenetically - Pristobrycon striolatus ...
Alan Gomes dos Santos +4 more
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Astyanax pampa (Characiformes, Characidae), a
Revue suisse de zoologie, 2005 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Jorge R. Casciotta +2 more
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Morphology, molecules and the phylogeny of Characidae (Teleostei, Characiformes) [PDF]
Cladistics, 2018 AbstractThis is the most comprehensive phylogenetic analysis of the Characidae to date and the first large‐scale hypothesis of the family, combining myriad morphological data with molecular information. A total of 520 morphological characters were analysed herein, of which 98 are newly defined.
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The efficiency of spermatogenesis and the support capacity of Sertoli cells in Characiformes [PDF]
Theriogenology, 2017 This stereological analysis of the types of germ cells and the number of Sertoli cells per cyst in Astyanax altiparanae testes during spermatogenesis is the first such report in Characiformes. Testes of 25 male A. altiparanae were examined. Based on the number of spermatogonia B per cyst (469.2 ± 9.92), we estimated that spermatogonia undergo at least ...
Rodrigues, Maira da Silva +4 more
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Is Nematocharax (Actinopterygii, Characiformes) a monotypic fish genus? [PDF]
Genome, 2016 The combination of DNA barcodes and geometric morphometrics is useful to discriminate taxonomically controversial species, providing more precise estimates of biodiversity. Therefore, our goal was to assess the genetic and morphometric diversity in Nematocharax, a controversial monotypic and sexually dimorphic genus of Neotropical fish, based on ...
Barreto, Silvia Britto +7 more
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