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Molecular and cytogenetic analyses of cryptic species within the Synbranchus marmoratus Bloch, 1795 (Synbranchiformes: Synbranchidae) grouping: Species delimitations, Karyotypic evolution and intraspecific diversification
(2014-01-01)
The fish species Synbranchus marmoratus has been reported to exist as a species complex due to high intraspecific karyotypic variability in spite of the difficulty or impossibility to distinguish them using morphological ...
Chromosomal Mapping of Repetitive DNAs in Characidium (Teleostei, Characiformes): Genomic Organization and Diversification of ZW Sex Chromosomes
(Karger, 2015-01-01)
The speciose neotropical genus Characidium has proven to be a good model for cytogenetic exploration. Representatives of this genus often have a conserved diploid chromosome number; some species exhibit a highly differentiated ...
Karyologic diversification and phylogenetic relationships of the genus Thalpomys (Rodentia, Sigmodontinae)
(Springer, 2004-06-01)
We describe the karyotype of Thalpomys species, from different Brazilian localities of the Cerrado. Thalpomys cerradensis Herskovitz, 1990 showed 2n = 36, FN = 34 and T. lasiotis Thomas, 1916 2n = 38, FN = 38. Comparisons ...
Using chromosomal data in the phylogenetic and molecular dating framework: Karyotype evolution and diversification in Nierembergia (Solanaceae) influenced by historical changes in sea level
(Wiley Blackwell Publishing, Inc, 2016-03)
Karyotype data within a phylogenetic framework and molecular dating were used to examine chromosome evolution in Nierembergia and to infer how geological or climatic processes have influenced in the diversification of this ...
Karyotype Evolution of Chagas Disease Vectors (Hemiptera, Triatominae)
(Amer Soc Trop Med & Hygiene, 2018-01-01)
The Triatominae subfamily is composed of 153 hematophagous species that are potential vectors of Trypanosoma cruzi, the etiological agent of Chagas disease. Karyotypic studies in triatomines were initiated in 1909. There ...
The karyotype of Sophora tetraptera (Fabaceae)
(Taylor & Francis, 2003-12)
The karyotype of Sophora tetraptera (Fabaceae (Leguminosae), subfam. Papilionoideae) is reported for the first time. The chromosome number, 2n = 18, coincides with former reports and is the most common number for the genus. ...
Karyotypic diversification and its contribution to the taxonomy of Eleocharis (Cyperaceae) from Brazil
(CSIRO Publishing, 2010-01-01)
A karyotype analysis of 147 populations of 25 Brazilian species of Eleocharis (Cyperaceae) was carried out, including representatives of the three subgenera that occur in the country: Limnochloa, Scirpidium and Eleocharis. ...
The species complex Astyanax fasciatus Cuvier (Teleostei, Characiformes) - a multidisciplinary approach
(WILEY-BLACKWELL, 2008)
Cytogenetic data have provided important clues that the Astyanax fasciatus populations from the Upper Parana River basin could be a part of a more diverse fish group, usually included on the same taxa. Samples collected ...