Results 71 to 80 of about 653 (155)

Meiotic chromosomes and nucleolar behavior in testicular cellas of the grassland spittlebugs Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana (Hemiptera, Auschenorrhyncha). [PDF]

open access: yes, 2015
Spittlebugs annually infest pastures and cause severe damage, representing a serious problem for the tropical American beef cattle industry. Spittlebugs are an important biotic constraint to forage production and there is a lack of cytogenetic data for ...
BARBOSA, L. R.   +5 more
core  

Cyperaceae in Mexico: Diversity and distribution

open access: yesBotan‪ical Sciences, 2018
Background: Cyperaceae, with about 5,500 species and 90 genera worldwide, are the third largest family among Monocots. A unique combination of morphological and karyotypical features, among which stand holokinetic chromosomes, favors a rapid evolution ...
M. Socorro González-Elizondo   +2 more
doaj   +1 more source

Functional consequences of chromosome holocentricity [PDF]

open access: yes, 2016
Holozentrische Chromosomen treten in einer Reihe von unabhängigen Abstammungen in unterschiedlichen Eukaryoten auf. Diese bilden Zentromere entlang der Gesamtlänge der Schwesterchromatiden. Durch diese Chromosomenstruktur können Arten mit holozentrischen
Jankowska, Maja
core   +1 more source

Composition and Epigenetic Markers of Heterochromatin in the Aphid Aphis nerii (Hemiptera: Aphididae). [PDF]

open access: yes, 2011
A detailed karyotype analysis of the oleander aphid Aphis nerii focusing on the distribution, molecular composition and epigenetic modifications of heterochromatin was done in order to better understand the structure and evolution of holocentric ...
AZZONI, Paola   +3 more
core   +1 more source

New contributions to the study of Corixoidea: cytogenetic characterization of three species of Sigara from Argentina and the plausible mechanisms of karyotype evolution within Nepomorpha Nuevas contribuciones al estudio de Corixoidea: caracterización citogenética de tres especies de Sigara de Argentina y los posibles mecanismos de evolución del cariotipo en Nepomorpha

open access: yesRevista de la Sociedad Entomológica Argentina, 2007
Cytogenetic studies in Heteroptera contribute to the analysis of evolutionary trends within the group. Heteroptera are characterized by the possession of holokinetic chromosomes, different sex chromosome mechanisms and a pair of m chromosomes in some ...
María José Bressa   +1 more
doaj  

Comparative analysis of chromosome numbers and sex chromosome systems in Paraneoptera (Insecta). [PDF]

open access: yesComp Cytogenet, 2021
Kuznetsova VG   +3 more
europepmc   +1 more source

Meiosis in Haematopinus Suis and Menacanthus Stramineus (Phthiraptera, Insecta) [PDF]

open access: yes, 1993
Haemalopinus suis (Anoplura) and Menacanthus stramineus (Mallophaga) have been cytogenetically analyzed. Both species have 2n = 10, holokinetic chromosomes, and achiasmatic male meiosis.
Papeschi, A.G., Tombesi, M.L.
core  

Chromosome size matters: genome evolution in the cyperid clade. [PDF]

open access: yesAnn Bot, 2022
Elliott TL   +15 more
europepmc   +1 more source

Inverse meiosis in triploid females of the mealy bug, Planococcus citri [PDF]

open access: yes, 1962
This article does not have an ...
Sharat Chandra, H.
core  

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