Results 1 to 10 of about 343 (123)

The Chromosome-Scale Genome of Chitala ornata Illuminates the Evolution of Early Teleosts [PDF]

Biology
Teleosts are the most prolific vertebrates, occupying the vast majority of aquatic environments, and their pectoral fins have undergone remarkable physiological transformations throughout their evolution.
Zengbao Yuan, Yue Song, Suyu Zhang, Yadong Chen, Mengyang Xu, Guangyi Fan, Xin Liu   +6 more
doaj   +2 more sources

African Arowana Genome Provides Insights on Ancient Teleost Evolution [PDF]

iScience, 2020
Summary: Osteoglossiformes is a basal clade of teleost, evolving since the Jurassic period. The genomes of Osteoglossiformes species would shed light on the evolution and adaptation of teleost.
Shijie Hao, Kai Han, Lingfeng Meng, Xiaoyun Huang, Wei Cao, Chengcheng Shi, Mengqi Zhang, Yilin Wang, Qun Liu, Yaolei Zhang, Haixi Sun, Inge Seim, Xun Xu, Xin Liu, Guangyi Fan   +14 more
doaj   +2 more sources

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988. [PDF]

Anat Rec (Hoboken)
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Leão-Reis R, Magalhães KX, Pereira TNA, Muriel-Cunha J, Akama A.   +4 more
europepmc   +2 more sources

Conservation and management implications of genetic and geometric scale variation in the ancient fish giant featherback (Chitala lopis). [PDF]

J Fish Biol
Abstract Giant featherback (Chitala lopis) is an ancient species of freshwater fish considered globally extinct until extant populations were re‐discovered in the Sundaland region of Indonesia in 2022. To improve management of the remaining populations, this study used genomic DNA and landmark‐based geometric morphometric analyses of fish scales to ...
Muslimin B, Muhammad G, Wibowo A, Kurniawan K, Prakoso VA, Ginanjar R, Zamroni M, Sumarto BKA, Astuti SS, Irawan D, Priyadi A, Dwirastina M, Indahsari SR, Haryono H, Dahruddin H, Lestari I, Palimirmo FS, Nafiqoh N, Arief MCW, Sahidin A, Ariantie OS, Yusanti IA, Nugraha S, Stuart IG.   +23 more
europepmc   +2 more sources

The complete mitochondrial genome of the pirarucu (Arapaima gigas, Arapaimidae, Osteoglossiformes)

Genetics and Molecular Biology, 2008
We sequenced the complete mitochondrial genome of the pirarucu, Arapaima gigas, the largest fish of the Amazon basin, and economically one of the most important species of the region.
Izeni P. Farias, Tomas Hrbek
exaly   +3 more sources

Geographic range, distribution patterns and interactions of Monogenea Van Beneden 1858, with species of native host freshwater fishes from Brazil [PDF]

Revista Brasileira de Parasitologia Veterinária, 2022
This paper investigated information on monogenean species using 312 scientific papers, to search for infection and geographic distribution patterns in native freshwater fish from Brazil.
Marcos Tavares-Dias, Luís Mauricio Abdon Silva, Marcos Sidney Brito Oliveira   +2 more
doaj   +2 more sources

Derived karyotypes in two elephantfish genera (Hyperopisus and Pollimyrus): lowest chromosome number in the family Mormyridae (Osteoglossiformes) [PDF]

Comparative Cytogenetics, 2021
The African weakly electric elephantfish family Mormyridae comprises 22 genera and almost 230 species. Up-to-date cytogenetic information was available for 17 species representing 14 genera.
Sergey Simanovsky, Dmitry Medvedev, Fekadu Tefera, Alexander Golubtsov   +3 more
doaj   +4 more sources

Alobophora sandrae n. gen. n. sp. (Digenea: Caballerotrematidae) infecting Arapaima gigas sensu lato (Osteoglossiformes: Arapaimidae) with a revision of Caballerotrema, key to Caballerotrematidae, and updated phylogeny [PDF]

Parasite
We propose and describe Alobophora sandrae Cajiao-Mora & Bullard n. gen., n. sp. (Digenea: Caballerotrematidae) for specimens we collected from arapaima, Arapaima gigas sensu lato (Osteoglossiformes: Arapaimidae) in the Amazon River near Leticia ...
Cajiao-Mora Kamila, Brule John H., Warren Micah B., Ksepka Steven P., Dutton Haley R., Bullard Stephen A.   +5 more
doaj   +2 more sources

Sex Differentiation and Long-Distance Gene Flow in the Elusive Antarctic Fish <i>Aethotaxis mitopteryx</i>. [PDF]

Ecol Evol
This genetic study of a rare Antarctic fish, the longfin icedevil (Aethotaxis mitopteryx) investigates population connectivity across the Weddel Sea, revealing little to no differentiation even over vast geographic distances. Unexpectedly, the strongest genetic differentiation is instead observed between male and female fishes, which suggests a ...
Schiavon L, Desvignes T, Ronco F, Matschiner M, Gastaldi M, Koppetsch T, Schrøder-Nielsen A, Postlethwait JH, Prestanti A, Stranci F, Ceballos SG, Mark FC, Lucassen M, Riginella E, La Mesa M, Papetti C.   +15 more
europepmc   +2 more sources

Genetic diversity and structuring in the arapaima (Osteoglossiformes, Osteoglossidae) population reveal differences between the Amazon and the Tocantins-Araguaia basins [PDF]

Anais Da Academia Brasileira De Ciencias, 2020
Arapaima is a widely-distributed fish of enormous economic importance in the Amazon region. In the present study, a total of 232 specimens were sampled, 121 from five sites in the Amazon basin and 111 from five sites in the Tocantins-Araguaia basin.
Paulo Venere, Iracilda Sampaio, Helder Queiroz   +2 more
exaly   +3 more sources