Zobrazeno 1 - 10
of 48
pro vyhledávání: '"A G Papeschi"'
Publikováno v:
Frontiers in Ecology and Evolution, Vol 10 (2022)
Heteropteran insects exhibit a remarkable diversity of meiotic processes, including coexistence of different chromosomes types with different behavior during the first meiotic division, non-chiasmatic segregation, and inverted meiosis. Because of thi
Externí odkaz:
https://doaj.org/article/7bc79667a3dd463fbe3ace3dd02f17fe
Autor:
Mónica G. Chirino, Patricia J. Folgarait, Lawrence E. Gilbert, Silvia Lanzavecchia, Alba G. Papeschi
Publikováno v:
Genetics and Molecular Biology, Vol 32, Iss 4, Pp 740-747 (2009)
Pseudacteon flies, parasitoids of worker ants, are being intensively studied as potentially effective agents in the biological control of the invasive pest fire ant genus Solenopsis (Hymenoptera: Formicidae). This is the first attempt to describe the
Externí odkaz:
https://doaj.org/article/fd98a98fb22a49d083868edbb2a8cff7
Publikováno v:
European Journal of Entomology, Vol 100, Iss 1, Pp 11-18 (2003)
Species of Pentatomidae are cytogenetically characterized by the presence of holokinetic chromosomes, a pre-reductional type of meiosis, and a great constancy not only in chromosome number (2n = 14 in 85% of the 250 species analyzed) but also in the
Externí odkaz:
https://doaj.org/article/86ea5cd3521b46dc9bd0c8a5b8fcad23
Publikováno v:
European Journal of Entomology, Vol 98, Iss 2, Pp 151-157 (2001)
So far, available cytogenetic data on 24 species of Rhopalidae reveal a male diploid chromosome number of 13, with a pair of m chromosomes and an X0/XX (male/female) sex chromosome determining system. As a rule Heteroptera have holokinetic chromosome
Externí odkaz:
https://doaj.org/article/fe0284687fea4b59a42bd2455cd773f9
Autor:
M. I. Pigozzi, A G Papeschi, František Marec, María José Bressa, Iva Fuková, Magda Vítková, Svatava Kubickova
Publikováno v:
Cytogenetic and Genome Research. 125:292-305
The neo-X and neo-Y sex chromosomes of Dysdercus albofasciatus represent a unique model for the study of early stages of sex chromosome evolution since they retained the ability to pair and recombine, in contrast to sex chromosomes in most Heteropter
Publikováno v:
Caryologia. 61:53-59
The genus Artemia is an interesting model organism for evolutionary studies since many factors driving speciation have been observed in the genus. It has been suggested that in this genus heterochromatin content could be a reliable criteria to establ
Autor:
L. M. Mola, A. G. Papeschi
Publikováno v:
HEREDITAS 1994;121(2):185-189
Biblioteca Digital (UBA-FCEN)
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
Biblioteca Digital (UBA-FCEN)
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
The haploid DNA content of Aeshna confusa (2n = 27, n = 13 + XO, male). A. bonariensis (2n = 26, n = 12 + neo-XY, male) and A. cornigera planaltica (2n = 16, n = 7 + neo-XY, male) has been determined (2.16 ± 0.16 pg, 1.81 ± 0.17 pg, and 2.08 ± 0.0
Autor:
A. G. Papeschi, M. L. Tombesi
Publikováno v:
Hereditas 1993;119(1):31-38
Biblioteca Digital (UBA-FCEN)
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
Biblioteca Digital (UBA-FCEN)
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
Haemalopinus suis (Anoplura) and Menacanthus stramineus (Mallophaga) have been cytogenetically analyzed. Both species have 2n = 10, holokinetic chromosomes, and achiasmatic male meiosis. Bivalents orientate with their long axis perpendicular to the s
Autor:
A. G. Papeschi, M. V. Cattani
Publikováno v:
Hereditas. 140:105-111
The Coreidae are cytogenetically characterized by possessing holokinetic chromosomes and a pre-reductional type of meiosis. The modal diploid chromosome number of the family is 21, with a pair of m chromosomes and an XO/XX sex chromosome determining
Publikováno v:
Caryologia. 57:267-273
— All heteropteran species possess holokinetic chromosomes and a pre-reductional type of meiosis. Autosomal bivalents segregate reductionally at meiosis I while the sex chromosomes do so equational...