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Meiotic analysis of F1 hybrids among teosintes
(Maize Genetic Cooperation, 2013)
The association of homologous or homeologous chromosomes in the meiotic behaviour of F1 hybrids reveals the relative affinity between genomes of parental species. Chromosomal rearrangements and genetic incompatibilities ...
Deep cytogenetics analysis reveals meiotic recombination depletion in species of Senecio (Asteraceae)
(Springer, 2013-08)
Background: Senecio is the largest genus in the Asteraceae family growing in all environments around the world. It displays taxonomic and systematical difficulties. Cytogenetic knowledge of this genus is ancient, scarce ...
Spindle and chromosome configurations of in vitro-matured oocytes from polycystic ovary syndrome and ovulatory infertile women: a pilot study
(SPRINGER/PLENUM PUBLISHERS, 2011)
To evaluate the meiotic spindle and chromosomal distribution of in vitro-matured oocytes from infertile nonobese women with PCOS and male or tubal causes of infertility (controls), and to compare in vitro maturation (IVM) ...
Intriguing evidence of translocations in Discus fish (Symphysodon, Cichlidae) and a report of the largest meiotic chromosomal chain observed in vertebrates
(Nature Publishing Group, 2009-05-01)
As part of a program to understand the genetics of Amazonian ornamental fish, classical cytogenetics was used to analyze Symphysodon aequifasciatus, S. discus and S. haraldi, popular and expensive aquarium fishes that are ...
Intriguing evidence of translocations in Discus fish (Symphysodon, Cichlidae) and a report of the largest meiotic chromosomal chain observed in vertebrates
(Nature Publishing Group, 2009-05-01)
As part of a program to understand the genetics of Amazonian ornamental fish, classical cytogenetics was used to analyze Symphysodon aequifasciatus, S. discus and S. haraldi, popular and expensive aquarium fishes that are ...
Evaluation of meiotic abnormalities and pollen viability in aposporous and sexual tetraploid Paspalum notatum (Poaceae)
(Springer Wien, 2012-06-21)
We analyzed anaphase I configurations and pollen viability in aposporous and sexual tetraploid (2n = 4x = 40) cytotypes of Paspalum notatum. Five natural aposporous accessions and three experimentally obtained sexual ...
A second case of multivalent meiotic configurations in diploid species of Anura
(Sociedade Brasileira de Genética, 2000)