Buscar
Mostrando ítems 51-60 de 1941
Neo-sex chromosomes of Ronderosia bergi: insight into the evolution of sex chromosomes in grasshoppers
(Springer-Verlag Berlin Heidelberg, 2015)
Sex chromosomes have evolved many times from morphologically identical autosome pairs, most often presenting several recombination suppression events, followed by accumulation of repetitive DNA sequences. In Orthoptera, ...
Cytogenetics of two species of Paratelmatobius (Anura: Leptodactylidae), with phylogenetic comments
(2000-12-01)
In this paper we provide a cytogenetic analysis of Paratelmatobius cardosoi and Paratelmatobius poecilogaster. The karyotypes of both species showed a diploid number of 24 chromosomes and shared some similarity in the ...
Cytogenetics of two species of Paratelmatobius (Anura: Leptodactylidae), with phylogenetic comments
(2000-12-01)
In this paper we provide a cytogenetic analysis of Paratelmatobius cardosoi and Paratelmatobius poecilogaster. The karyotypes of both species showed a diploid number of 24 chromosomes and shared some similarity in the ...
Origin and molecular organization of supernumerary chromosomes of Prochilodus lineatus (Characiformes, Prochilodontidae) obtained by DNA probes
(Springer, 2010-12-01)
In Prochilodus lineatus B-chromosomes are visualized as reduced size extra elements identified as microchromosomes and are variable in morphology and number. We describe the specific total probe (B-chromosome probe) in P. ...
Origin and molecular organization of supernumerary chromosomes of Prochilodus lineatus (Characiformes, Prochilodontidae) obtained by DNA probes
(Springer, 2010-12-01)
In Prochilodus lineatus B-chromosomes are visualized as reduced size extra elements identified as microchromosomes and are variable in morphology and number. We describe the specific total probe (B-chromosome probe) in P. ...
A novel ZZ/ZW sex chromosome system for the genus Leporinus (Pisces, Anostomidae, Characiformes)
(Kluwer Academic Publ, 2014)
Chromosome evolution and phylogeny in Ronderosia (Orthoptera, Acrididae, Melanoplinae): clues of survivors to the challenge of sympatry?
(Wiley Blackwell Publishing, Inc, 2019-01)
In an attempt to unveil the origin of neo-sex chromosomes in Ronderosia Cigliano grasshoppers, we performed a combined phylogenetic analysis based on morphological (external morphology and male genitalia) and molecular ...