Results 61 to 70 of about 3,200 (219)

Visual mate preference evolution during butterfly speciation is linked to neural processing genes

open access: yesNature Communications, 2020
The genetic mechanisms underlying mate choice decisions can inform our understanding of speciation. A study on Heliconius butterflies identifies 5 candidate genes that would allow sympatric species to evolve distinct preferences without altering their ...
Matteo Rossi   +7 more
doaj   +1 more source

A century of theories of balancing selection

open access: yesBiological Reviews, Volume 101, Issue 2, Page 804-825, April 2026.
ABSTRACT Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short.
Filip Ruzicka   +10 more
wiley   +1 more source

Butterfly Learning and the Diversification of Plant Leaf Shape

open access: yesFrontiers in Ecology and Evolution, 2016
Visual cues are important for insects to find flowers and host plants. It has been proposed that the diversity of leaf shape in Passiflora vines could be a result of negative frequency dependent selection driven by visual searching behavior among their ...
Denise Dalbosco Dell'aglio   +4 more
doaj   +1 more source

Target capture efficiently resolves the long‐standing taxonomic dead end of Diachrysia moths

open access: yesSystematic Entomology, Volume 51, Issue 2, April‐June 2026.
We demonstrate the high efficiency of the target capture method in elucidating the taxonomy of the cryptic species of Diachrysia chrysitis and D. stenochrysis. Phylogenomic and population structure analyses reveal clear nuclear divergence and asymmetric allele sharing, consistent with historical gene flow rather than recent hybridization.
Maria Khan   +6 more
wiley   +1 more source

Evolutionary Novelty in a Butterfly Wing Pattern through Enhancer Shuffling.

open access: yesPLoS Biology, 2016
An important goal in evolutionary biology is to understand the genetic changes underlying novel morphological structures. We investigated the origins of a complex wing pattern found among Amazonian Heliconius butterflies.
Richard W R Wallbank   +11 more
doaj   +1 more source

Clustering of loci controlling species differences in male chemical bouquets of sympatric Heliconius butterflies

open access: yesEcology and Evolution, 2021
The degree to which loci promoting reproductive isolation cluster in the genome—that is, the genetic architecture of reproductive isolation—can influence the tempo and mode of speciation.
Kelsey J. R. P. Byers   +9 more
doaj   +1 more source

Genomic‐based species delimitation reveals cryptic diversity and semi‐permeable species boundaries in a Chorthippus (Orthoptera: Acrididae) grasshopper complex from Greece

open access: yesSystematic Entomology, Volume 51, Issue 2, April‐June 2026.
Genome‐wide and morphometric analyses of a Greek grasshopper complex (genus Chorthippus) uncover Middle Pleistocene divergence into two major clades separated by the Corinthian Gulf, with further diversification within the Peloponnese. Hybridization is geographically restricted and asymmetric, mainly from long‐winged to short‐winged taxa, indicating ...
Marina Trillo, Joaquín Ortego
wiley   +1 more source

Adaptation to altitude in Heliconius butterflies

open access: yes, 2021
Local adaptation is an important process for studying recent evolutionary change. The environment changes drastically along steep clines, such as mountains, and diverse sets of challenges are predicted to drive local adaptation. Thus, these clines represent ideal settings to identify the traits and genomic mechanisms that allow some organisms to ...
openaire   +1 more source

New localities for Heliconius besckei Ménétriés and Heliconius sara (Fabricius) (Lepidoptera: Nymphalidae) in Bahia, Brazil [PDF]

open access: yesNeotropical Entomology, 2005
New occurrences for two Heliconius Kluk species are reported for sites in inland Bahia, Brazil. New inland sites are reported for Heliconius sara (Fabricius), a species normally found at coastal regions. To our knowledge, Heliconius besckei Menetries, a species restricted to cool mountain habitats, is reported for Northeastern Brazil for the first time.
openaire   +2 more sources

Longwing (Heliconius) butterflies combine a restricted set of pigmentary and structural coloration mechanisms

open access: yesBMC Evolutionary Biology, 2017
Background Longwing butterflies, Heliconius sp., also called heliconians, are striking examples of diversity and mimicry in butterflies. Heliconians feature strongly colored patterns on their wings, arising from wing scales colored by pigments and/or ...
Bodo D. Wilts   +3 more
doaj   +1 more source

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