South American melanopline grasshoppers display a disproportionate number of derived karyotypes, including many cases of neo-sex chromosome systems. This is especially true of the genus Dichroplus and its Maculipennis species group. We analyzed the karyotype and neo-sex chromosomes in mitosis and meiosis of Dichroplus maculipennis and D. vittigerum from Argentina using conventional and fluorescent cytogenetic protocols in order to elucidate the behavior and origin of these neo-XY systems in relation to the current phylogeny of this group. Our results showed that D. maculipennis (2n = 22♂/22♀; neoXY/neoXX) and D. vittigerum, whose karyotype is described here for the first time (2n = 18♂/18♀; neoXY/neoXX), show highly evolved neo-XY systems, ...
In an attempt to track the chromosomal differentiation in the Dichroplus elongatus species group, we...
Dichroplus elongatus is a South American grasshopper that shows simultaneous polymorphisms for B chr...
We tested the centromeric drive theory of karyotypic evolution in the grasshopper Dichroplus pratens...
We report the results of a study on the neo-sex chromosome systems of six Neotropical Melanoplinae s...
Background: Neo-sex chromosome systems arose independently multiple times in evolution, presenting t...
Sex chromosomes have evolved many times from morphologically identical autosome pairs, most often pr...
In an attempt to unveil the origin of neo-sex chromosomes in Ronderosia Cigliano grasshoppers, we pe...
Background: The accumulation of repetitive DNA during sex chromosome differentiation is a common fea...
Neo-sex chromosomes are an important component of chromosome variation in Orthoptera, particularly S...
In most phylogenetic lineages, the evolution of sex chromosomes is accompanied by their heteromorphi...
Orthopterans are a fascinating group of insects in multiple ways. My own research focuses on the evo...
We review historical and pioneering work as well as recently published papers about orthopteran sex ...
The neo-X and neo-Y sex chromosomes of Dysdercus albofasciatus represent a unique model for the stud...
In Acridoidea grasshoppers, chromosomal rearrangements are frequently found as deviations from the s...
Robertsonian changes account for many of the changes in the evolution of the orthopteran karyotype; ...
In an attempt to track the chromosomal differentiation in the Dichroplus elongatus species group, we...
Dichroplus elongatus is a South American grasshopper that shows simultaneous polymorphisms for B chr...
We tested the centromeric drive theory of karyotypic evolution in the grasshopper Dichroplus pratens...
We report the results of a study on the neo-sex chromosome systems of six Neotropical Melanoplinae s...
Background: Neo-sex chromosome systems arose independently multiple times in evolution, presenting t...
Sex chromosomes have evolved many times from morphologically identical autosome pairs, most often pr...
In an attempt to unveil the origin of neo-sex chromosomes in Ronderosia Cigliano grasshoppers, we pe...
Background: The accumulation of repetitive DNA during sex chromosome differentiation is a common fea...
Neo-sex chromosomes are an important component of chromosome variation in Orthoptera, particularly S...
In most phylogenetic lineages, the evolution of sex chromosomes is accompanied by their heteromorphi...
Orthopterans are a fascinating group of insects in multiple ways. My own research focuses on the evo...
We review historical and pioneering work as well as recently published papers about orthopteran sex ...
The neo-X and neo-Y sex chromosomes of Dysdercus albofasciatus represent a unique model for the stud...
In Acridoidea grasshoppers, chromosomal rearrangements are frequently found as deviations from the s...
Robertsonian changes account for many of the changes in the evolution of the orthopteran karyotype; ...
In an attempt to track the chromosomal differentiation in the Dichroplus elongatus species group, we...
Dichroplus elongatus is a South American grasshopper that shows simultaneous polymorphisms for B chr...
We tested the centromeric drive theory of karyotypic evolution in the grasshopper Dichroplus pratens...