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Chromosomal features of nucleolar dominance in hybrids between the Neotropical fish Leporinus macrocephalus and Leporinus elongatus (Characiformes, Anostomidae)
(Springer, 2009-11-01)
In the present study, the chromosomal mechanisms of nucleolar dominance were analyzed in the hybrid lineage Piaupara, which resulted from crossing the Leporinus macrocephalus female (Piau double dagger u) and L. elongatus ...
Nucleolar activity and distribution of ribosomal genes in phyllotis rodent species and their laboratory hybrids
(University of California, 2007)
The expression of nucleolar organizer regions (NORs), distinguished through silver
staining procedures, and the distribution of ribosomal genes, detected by fluorescent
in situ hybridization with a ribosomal DNA probe, ...
Karyotype stability and genome-specific nucleolar dominance in peanut, its wild 4× ancestor, and a synthetic AABB polyploid
(Crop Science Society of America, 2018-07)
Allopolyploidy is a significant evolutionary process involved in the origin of many crops, including peanut (Arachis hypogaea L.). The process usually results in a series of chromosome, genomic and epigenetic rearrangements ...
Cariótipos e evolução cromossômica de lagartos da subfamília Teiinae (Teiidae) com contribuições sobre a partenogênese
(Universidade Federal de São Paulo, 2022-09-23)
Os estudos citogenéticos em lagartos da subfamília Teiinae (Teiidae) ainda são restritos a menos de 50% das espécies conhecidas, sendo a maioria baseado em coloração convencional. Essa abordagem permite identificar variações ...
Commelina Platyphylla
(International Association for Plant Taxonomy, 2010-12)
Commelina platyphylla is a diploid species widely distributed in South America, representing a convenient model for karyological study. Different classical and molecular cytogenetics techniques were applied in order to ...
Cytogenetic characterization of F1, F2 and backcross hybrids of the Neotropical catfish species Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum (Pimelodidae, Siluriformes)
(Sociedade Brasileira de Genética, 2012-01-01)
The cytogenetic characteristics of Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum and their F1, F2 and backcross hybrids were assessed by using chromosome banding techniques. The diploid number of 56 chromosomes ...