Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Pablo C. Colombo"'
Autor:
Pablo C. COLOMBO, María I. REMIS
Publikováno v:
European Journal of Entomology, Vol 115, Iss 1, Pp 303-311 (2018)
The water-hyacinth grasshopper, Cornops aquaticum, occurs in freshwater environments in the New World between latitudes 23°N and 35°S. At the southernmost margin of this distribution the populations are polymorphic for three centric fusions (Robert
Externí odkaz:
https://doaj.org/article/2b799e77105e4d77b3acc32f96eaca47
Autor:
Pablo C. COLOMBO
Publikováno v:
European Journal of Entomology, Vol 109, Iss 3, Pp 317-324 (2012)
The central-marginal model is widely accepted in chromosomally polymorphic species of Drosophila. In fact, geographically and ecologically central populations of Drosophila show higher levels of polymorphism for paracentric inversions, whereas margin
Externí odkaz:
https://doaj.org/article/e8b245af738540d5a410d265afd59f4a
Autor:
Pablo C. COLOMBO
Publikováno v:
European Journal of Entomology, Vol 104, Iss 4, Pp 653-659 (2007)
The New World grasshopper Cornops aquaticum (Leptysminae: Acrididae) shows a geographical pattern for three Robertsonian polymorphisms in its southernmost area of distribution in Argentina and Uruguay. The frequency and distribution of chiasmata were
Externí odkaz:
https://doaj.org/article/5dd16c00103043aaa161015bfdd83933
Publikováno v:
Bulletin of Entomological Research. 111:746-758
The water hyacinth grasshopper Cornops aquaticum (Bruner 1906) constitutes an appropriate model to assess phenotypic and karyotypic variability in the context of differentiation and adaptation of insect populations because it occurs over a wide latit
Autor:
Pablo C. Colombo, Carlos E. Lange, María Marta Cigliano, Viviana A. Confalonieri, Andrea S. Sequeira, Juan C. Vilardi
Publikováno v:
Cladistics : the international journal of the Willi Hennig SocietyReferences. 21(4)
The neotropical genus Dichroplus and related genera are characterized by a relatively uniform external morphology and a remarkably divergent male genitalia and hence its taxonomy is controversial. It also shows an extreme karyotypic diversification.
Autor:
Pablo C. Colombo, Maria Isabel Remis
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Leptysma argentina Bruner, Trimerotropis pallidennis (Burmeister), and Cornops aquaticum Bruner are South-American grasshoppers (Orthoptera:Acrididae) whose chromosome polymorphisms were intensively studied. Leptysma argentina lives in central-east A
Autor:
Pablo C. Colombo
Publikováno v:
Caryologia. 65:126-129
In previous papers it was reported that a Robertsonian translocation (centric fusion) affected external phenotype in the grasshopper Leptysma argentina and that thorax height was the target of adult viability selection. In the present paper two popul
Publikováno v:
Hereditas. 125:289-296
Correlation of a trait with environmental factors is a common means of measuring natural selection in natural populations. If the same correlation is seen in independent groups of populations over a wide area, selection is then a likely explanation.
Publikováno v:
Heredity. 87:480-484
Leptysma argentina (Acrididae: Orthoptera) is polymorphic for a centric fusion between pairs 3 and 6 of its basic chromosomal complement. With the aim of carrying out an analysis of selection components in this species, male mating success, in relati
Autor:
Gareth H. Jones, Pablo C. Colombo
Publikováno v:
Heredity. 79:214-227
It has long been assumed, since the early works of Mather, that the centromere plays a central role in chiasma position determination, so much so that in all sequential models chiasma determination was supposed to start or finish at this point. More