Results 81 to 90 of about 183,732 (170)

Gap‐free X and Y chromosome assemblies of Salix arbutifolia reveal an evolutionary change from male to female heterogamety in willows, without a change in the position of the sex‐determining locus

open access: yesNew Phytologist, Volume 242, Issue 6, Page 2872-2887, June 2024.
Summary In the Vetrix clade of Salix, a genus of woody flowering plants, sex determination involves chromosome 15, but an XY system has changed to a ZW system. We studied the detailed genetic changes involved. We used genome sequencing, with chromosome conformation capture (Hi‐C) and PacBio HiFi reads to assemble chromosome level gap‐free X and Y of ...
Yi Wang   +7 more
wiley   +1 more source

Recent sex chromosome divergence despite ancient dioecy in the willow Salix viminalis. [PDF]

open access: yes, 2017
Sex chromosomes can evolve when recombination is halted between a pair of chromosomes, and this can lead to degeneration of the sex-limited chromosome.
Berlin, S.   +4 more
core   +2 more sources

Saltational Episodes of Reticulate Evolution in the Drosophila saltans Species Group

open access: yesbioRxiv
Phylogenomics reveals reticulate evolution to be widespread across taxa, but whether reticulation is due to low statistical power or it is a true evolutionary pattern remains a field of investigation.
Carolina Prediger   +7 more
semanticscholar   +1 more source

Sequences homologous to the P mobile element of Drosophila melanogaster are widely distributed in the subgenus Sophophora

open access: yesNature, 1985
The biological properties of the P element of Drosophila melanogaster differ from those of other mobile elements in this genus in that its mobility is associated with dysgenic traits that might be expected to limit its distribution or spread1.
R. Lansman   +3 more
semanticscholar   +1 more source

Insights into the evolution of herbivory from a leaf‐mining fly

open access: yesEcosphere, Volume 15, Issue 4, April 2024.
Abstract Herbivorous insects and their host plants comprise most known species on Earth. Illuminating how herbivory repeatedly evolved in insects from nonherbivorous lineages is critical to understanding how this biodiversity is created and maintained.
Jessica M. Aguilar   +9 more
wiley   +1 more source

Chromosome number and individuality in the genus Crepis, [PDF]

open access: yes
P2 ...
Babcock, E. B. (Ernest Brown), 1877-1954   +1 more
core   +2 more sources

Molecular evolution of the Amy multigenes in the subgenus Sophophora of Drosophila.

open access: yesMolecular biology and evolution, 1997
Molecular evolution of the Amy multigenes in Drosophila was investigated using PCR amplification. Twenty-five partial Amy sequences from 13 species belonging mainly to the subgenus Sophophora were determine, and a molecular phylogeny of the Amy genes in ...
N. Inomata, H. Tachida, T. Yamazaki
semanticscholar   +1 more source

Bacteria and viruses and their role in the preschool wheeze to asthma transition

open access: yesPediatric Allergy and Immunology, Volume 35, Issue 3, March 2024.
Abstract Wheezing is the cardinal symptom of asthma; its presence early in life, mostly caused by viral infections, is a major risk factor for the establishment of persistent or recurrent disease. Early‐life wheezing and asthma exacerbations are triggered by common respiratory viruses, mainly rhinoviruses (RV), and to a lesser extent, respiratory ...
Nikolaos G. Papadopoulos   +3 more
wiley   +1 more source

Examining the associations between a generalist feeder and a highly toxic host

open access: yesEcology and Evolution, Volume 14, Issue 2, February 2024.
We used a variety of behavioral assays to assess the association between a generalist feeder and a highly toxic host fungus. Our results suggest that access to a resource with lower competition may help to maintain this association. Abstract Understanding the often antagonistic plant–herbivore interactions and how host defenses can influence herbivore ...
Grace Kropelin, Clare H. Scott Chialvo
wiley   +1 more source

Anchored phylogenomics and revised classification of the Miltogramminae (Diptera: Sarcophagidae)

open access: yesSystematic Entomology, Volume 49, Issue 1, Page 138-155, January 2024.
Anchored hybrid enrichment facilitates the creation of a highly supported phylogenetic hypothesis for the Miltogramminae containing 60% of the currently recognised genera from all biogeographic regions except the Neotropical. The new phylogeny tree facilitates a complete revision of the subfamily including the synonymisation of several genera ...
Nikolas P. Johnston   +7 more
wiley   +1 more source

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