Results 91 to 100 of about 20,176 (135)
Abstract Nicotiana sect. Suaveolentes is a group that has undergone recent and rapid radiation, a clade that originated ca. six million years ago and has since rapidly speciated throughout Australia, with a few taxa on Pacific Islands and one in Namibia (Africa). Post‐tetraploidisation, species in N. sect.
Charlotte Phillips +7 more
wiley +1 more source
Silene, a versatile model system: from sex and genome evolution to ecology and speciation
Summary Fundamental and applied research in evolutionary biology benefits from the use of model systems in which approaches from disparate disciplines can be integrated. Here, we review recent progress in evolutionary research on the long‐standing model system Silene, a large genus with a well‐resolved phylogeny and newly available, expanded genomic ...
Sophie Karrenberg +16 more
wiley +1 more source
Ecological change may be a common initiator of evolutionary pollinator shifts
Summary Although evolutionary pollinator shifts are accepted as major sources of floral and species diversity in angiosperms, the mechanisms triggering pollinator shifts remain largely unexplored. In 1970, Stebbins proposed that ecological change may be a common initiator of evolutionary pollinator shifts, but empirical tests of Stebbins' hypothesis ...
Agnes S. Dellinger
wiley +1 more source
European corn borer Ostrinia nubilalis (Hübner) is the most important pest of maize around world, and an ideal model for the sympatric host races, evolutionary and speciation research.
Xinhua Ding +8 more
doaj +1 more source
Genetic and Ecological Divergence Between Northwest Atlantic Killer Whale Populations
Killer whale (Orcinus orca) populations exhibit substantial genetic, ecological, and morphological differences across their global distribution. In this study, we use whole‐genome resequencing and compound‐specific stable isotope analysis of amino acids to show concurrent genetic and ecological differentiation in two relatively understudied killer ...
Caila E. Kucheravy +7 more
wiley +1 more source
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Franciele F. Kerniske +4 more
wiley +1 more source
Phenotypic Variation of Lake Charr (Salvelinus namaycush) in North America
Lake charr (Salvelinus namaycush) head and body variation were compared among lakes across the species range in North America to determine if variation was organized more strongly among morphs or lakes. For 3445 lake charr, head‐shape variation was > 17 times greater among morphs than lakes and body‐shape variation was > 16 times greater among morphs ...
Michael J. Hansen +5 more
wiley +1 more source
Ascertaining the causes of adaptive radiation is central to understanding how new species arise and come to vary with their resources. The ecological theory posits adaptive radiation via divergent natural selection associated with novel resource use; an ...
Meredith M. Doellman +13 more
doaj +1 more source
Using population genomic data, we investigated the evolutionary history and genomic divergence of closely related terrestrial plant lineages to test whether speciation proceeded in the presence of gene flow. Demographic modeling and genome‐wide scans revealed divergence with ongoing gene flow, heterogeneous genomic differentiation, and signatures of ...
Ai Liu +7 more
wiley +1 more source
We examined whether the “white” threespine stickleback of Nova Scotia represents a nascent species distinct from sympatric common marine sticklebacks. Genomic analyses revealed that whites form a unique genetic cluster with low but widespread divergence across the genome despite evidence of gene flow, while morphometric and isotopic data indicated ...
Kieran Samuk +2 more
wiley +1 more source

