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Chromosomal painting and ZW sex chromosomes differentiation in
Background The Characidium (a Neotropical fish group) have a conserved diploid number (2n = 50), but show remarkable differences among species and populations in relation to sex chromosome systems and location of nucleolus organizer regions (NOR).
Artoni Roberto F +10 more
doaj +7 more sources
Evolution and conservation of Characidium sex chromosomes. [PDF]
Fish species exhibit substantial variation in the degree of genetic differentiation between sex chromosome pairs, and therefore offer the opportunity to study the full range of sex chromosome evolution. We used restriction-site associated DNA sequencing (
Utsunomia R +13 more
europepmc +7 more sources
Key to the Characidium species from the trans-Andean basins of Colombia 1a. Isthmus and chest lacking scales........................................... Characidium cf. boavistae (Figs. 2k, l) 1b.
Taphorn, Donald C. +2 more
core +2 more sources
<p>[[Genus Characidium Reinhardt]]</p> <p>This new species of Characidium Reinhardt, 1867, brings the total for the genus to about 50 valid species (Buckup, 2003).
Donald C. Taphorn B. +2 more
core +2 more sources
<p> Genus <i>Characidium</i> Reinhardt, 1867</p> <p>REMARK</p> <p> An undetermined morphospecies (<i>Characidium</i> sp., [Fig. 5]) is known from the Maroni drainage basin.
Sébastien Brosse +2 more
core +2 more sources
Characidium lauroi Travassos 1949
<i>Characidium lauroi</i> Travassos, 1949 <p>Figure 2F</p> <p>Geographic distribution: Upper reaches of Paraíba do Sul tributaries.</p> <p> Diagnosis: <i>Characidium lauroi</i> differs from
Buckup, Paulo Andreas, de Brito, Victor
core +3 more sources
Characidium vidali Travassos 1967
Characidium vidali Travassos, 1967 Figure 2H Geographic distribution: Coastal rivers between Guanabara bay and Paraíba do Sul river basins. Diagnosis: Characidium vidali can be distinguished from C.
Buckup, Paulo Andreas, de Brito, Victor
core +3 more sources
FIGURE 1. Characidium clistenesi, sp. nov, holotype (MZUSP 120530, 27.4 mm SL, male) in (A) lateral, (B) dorsal, and (C) ventral views.Published as part of Melo, Marcelo R. S.
Melo, Marcelo R. S. +5 more
core +4 more sources
Characidium Armbruster & Lujan & Bloom 2021
KEY TO SPECIES OF THE FAST-WATER CHARACIDIUM OF THE GUIANA SHIELD 1a. Twelve circumpeduncular scales. Dorsal fin falcate with a medial dark band and terminal white band (Figs. 4, 5).
Bloom, Devin D. +2 more
core +3 more sources
Characidium summus Zanata & Ohara, 2015, new species
Characidium summus, new species (Fig. 1 a) Holotype. MZUSP 116954, 34.5 mm SL, Brazil, Rondônia, Guajará-Mirim, upper rio Pacaás Novos, tributary of rio Mamoré, rio Madeira basin, 10 º 50 ' 46.29 "S 63 º 37 ' 47.29 "W, D. Hungria & A.C.
Zanata, Angela M., Ohara, Willian M.
core +3 more sources

