Results 51 to 60 of about 653 (155)
Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae). [PDF]
Cytogenetic and genome research, 2018 Mitotic and meiotic chromosomes from 2 taxa of the genus Melinaea, M. satevis cydon and M. "satevis" tarapotensis (Lepidoptera: Nymphalidae), and from hybrids produced in captivity were obtained using an improved spreading technique and were subsequently analyzed. In one of the taxa, the presence of trivalents and tetravalents at diakinesis/metaphase I
Mcclure, Melanie +4 more
openaire +3 more sources
European Journal of Entomology, 2014 Cytogenetic information on the hemipteran suborder Coleorrhyncha is here provided for the first time. The New Zealand peloridiid species, Xenophyes cascus Bergroth, 1924 (Hemiptera: Coleorrhyncha: Peloridiidae), was found to display testes with a single ...
Snejana GROZEVA +2 more
doaj +1 more source
Comparative Cytogenetics, 2010 The Triatominae are distributed in Brazilian regions and are the vector of Chagas disease. This group is also characterized by lower karyotype variability, occurrence of holokinetic chromosomes and inverted meiosis of the sex chromosomes.
Vanessa Bardella +4 more
doaj +1 more source
Diversity, 2022 In most Anisoptera families, the modal diploid number is 25 in males (24 autosomes + X), and the X chromosome is one of the smallest elements of the complement.
Liliana M. Mola +3 more
doaj +1 more source
The vanishing clone: karyotypic evidence for extensive intraclonal genetic variation in the peach potato aphid, Myzus persicae (Hemiptera:Aphididae) [PDF]
, 2011 Analysis of holocentric mitotic metaphase chromosomes of the peach-potato aphid Myzus persicae (Sulzer) clone 33H revealed different chromosome numbers, ranging from 12 to 17 within each embryo, in contrast to the standard karyotype of this species (2n ...
MANDRIOLI, Mauro +3 more
core +1 more source
Memorias do Instituto Oswaldo Cruz, 1998 Triatoma sordida and T. guasayana are competent Trypanosoma cruzi vectors, with overlapping distribution areas in Argentina. Both species are morphologically similar, and their immature stages are hard to discriminate.
P Rebagliati +6 more
doaj +1 more source
Chromosome Evolution in Cyperales [PDF]
, 2007 Karyotypic evolution is a prominent feature in the diversification of many plants and animals, yet the role that chromosomal changes play in the process of diversification is still debated.
McCubbin, Andrew G +2 more
core +3 more sources
Unprecedented within-species chromosome number cline in the Wood White butterfly Leptidea sinapis and its significance for karyotype evolution and speciation [PDF]
, 2011 Background Species generally have a fixed number of chromosomes in the cell nuclei while between-species differences are common and often pronounced. These differences could have evolved through multiple speciation events, each involving the fixation of ...
Vladimir A Lukhtanov +3 more
core +2 more sources
Cladistics, Volume 40, Issue 6, Page 577-597, December 2024.ABSTRACT The family Dysderidae is a highly diverse group of nocturnal ground‐dwelling and active‐hunter spiders. Dysderids are mostly restricted to the Western Palearctic, and particularly rich and abundant around the Mediterranean region. Interestingly, the distribution of species richness among its 24 genera and three subfamilies is highly biased—80%
Silvia Adrián‐Serrano +2 more
wiley +1 more source
Starting at the end: telomeres and telomerase in arthropods [PDF]
, 2012 Telomere composition and structure have been studied in several arthropods allowing us to better understand the evolution of such an important portion of the eukaryotic chromosomes.
MANDRIOLI, Mauro +2 more
core +1 more source