Results 71 to 80 of about 2,455 (197)
Journal of Biogeography, Volume 53, Issue 1, January 2026.ABSTRACT Aim To investigate macroevolutionary and biogeographic patterns of chromosome number variation in ants (Formicidae), and to test whether chromosomal diversity is taxonomically structured, associated with species richness, varies with latitude, and accumulates over evolutionary time. Location Global.
Danon Clemes Cardoso +1 more
wiley +1 more source
New Phytologist, Volume 249, Issue 2, Page 1063-1084, January 2026.Summary Myrothamnus flabellifolia is a dioecious resurrection plant endemic to southern Africa that has become an important model for understanding desiccation tolerance. Despite its ecological and medicinal significance, genomic and transcriptomic resources for the species are limited.
Rose A. Marks +21 more
wiley +1 more source
Numerical variations in species exhibiting holocentric chromosomes: a nomenclatural proposal [PDF]
Caryologia, 1996 SUMMARYThis article reviews the types of numerical variation in chromosomes, with special emphasis on those organisms which have holocentric chromosomes. Terminological aspects are discussed with reference to monocentric as well as holocentric chromosomes. The term symploidy (partial or total) is proposed to include ploidy levels generated by fusion of
Modesto Luceño, Marcelo Guerra
openaire +1 more source
Evolution of Hybrid Inviability Associated With Chromosome Fusions
Molecular Ecology, Volume 34, Issue 24, December 2025.ABSTRACT Chromosomal rearrangements, such as inversions, have received considerable attention in the speciation literature due to their hampering effects on recombination. Less is known about how other rearrangements, such as chromosome fissions and fusions, can affect the evolution of reproductive isolation. Here, we use crosses between populations of
Jesper Boman +4 more
wiley +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
The polyploid continuum and the landscape of polyploid genomic variation
American Journal of Botany, Volume 112, Issue 11, November 2025.Abstract Polyploid research has traditionally distinguished between autopolyploids and allopolyploids on the basis of evolutionary origins, modes of inheritance, or chromosomal pairing behavior during meiosis. It has long been recognized, however, that a binary classification does not accurately reflect the complexity and diversity inherent to ...
Alex D. Twyford +6 more
wiley +1 more source
European Journal of Entomology, 2004 We analysed the chromosome complement and male meiosis in a natural population of Mepraia gajardoi (Hemiptera: Reduviidae: Triatominae). The normal karyotype of this species is 20 autosomes plus X1X2Y in males and X1X1X2X2 in females. We confirmed that M.
Ruben PÉREZ +4 more
doaj +1 more source
Genome Architecture and Speciation in Plants and Animals
Molecular Ecology, Volume 34, Issue 22, November 2025.ABSTRACT There have been numerous treatments of specific topics in speciation, but surprisingly few papers have compared patterns and processes of speciation across different organismal groups. In this review, we partially address this gap by asking how variation in genome architecture impacts speciation across the plant and animal kingdoms.
Silu Wang +3 more
wiley +1 more source
Frontiers in Plant Science, 2020 Cyperaceae is a family of Monocotyledons comprised of species with holocentric chromosomes that are associated with intense dysploidy and polyploidy events.
Paula Burchardt +5 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