Female attraction to an environmentally derived mating signal released by male orchid bees may be tightly linked to shared olfactory preferences of both sexes. A change in perfume preference may have led to divergence of two morphologically distinct lineages.
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http://dx.doi.org/10.1016/j.cub.2008.10.023 | DOI Listing |
Ecol Evol
January 2025
Instituto Milenio de Oceanografía (IMO) Universidad de Concepción Concepción Chile.
Mechanisms driving the spatial and temporal patterns of species distribution in the Earth's largest habitat, the deep ocean, remain largely enigmatic. The late Miocene to the Pliocene (~23-2.58 Ma) is a period that was marked by significant geological, climatic, and oceanographic changes.
View Article and Find Full Text PDFEvolution
January 2025
Department of Biology, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.
To better understand the sources of biological diversity in nature, we need information on the mechanisms underlying population divergence. Biological systems with patterns of naturally occurring adaptive variation among populations can provide insight into the genetic architecture of diverging traits and the influence of genetic constraints on responses to selection. Using a system of reproductive character displacement in the North American mushroom-feeding fly Drosophila subquinaria, we assessed patterns of genetic (co)variance among a suite of chemical signaling traits and divergence in this pattern among populations.
View Article and Find Full Text PDFEcol Evol
January 2025
MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences Beijing Normal University Beijing China.
During the evolution of parasites, co-speciation and host-range expansion are thought to play roles in establishing associations with hosts, while sorting events can lead to dissolution of those associations. To address the roles of these processes, we focus on avian haemosporidian parasites infecting hosts of the intensively studied great tit species complex. We estimated the phylogeography of lineages detected in the species complex, and quantified their transition probabilities among hosts.
View Article and Find Full Text PDFMol Ecol Resour
January 2025
School of Life Sciences, Anhui University, Hefei, Anhui, China.
Emberiza buntings (Aves: Emberizidae) exhibit extensive diversity and rapid diversification within the Old World, particularly in the eastern Palearctic, making them valuable models for studying rapid radiation among sympatric species. Despite their ecological and morphological diversity, there remains a significant gap in understanding the genomic underpinnings driving their rapid speciation. To fill this gap, we assembled high-quality chromosome-level genomes of five representative Emberiza species (E.
View Article and Find Full Text PDFSci Rep
December 2024
Laboratory of Fish Microbiology, Institute of Coastal Studies, Federal University of Para (UFPA), Alameda Leandro Ribeiro s/n, Braganca, 68600-000, Para, Brazil.
We evaluate the evidence of cryptic speciation in Larimus breviceps, a species widely distributed in the western South Atlantic, from the Greater Antilles to Santa Catarina in Brazil. Mitochondrial (COI, Cyt b, and Control Region) and nuclear (IGF1 and Tmo-4C4) sequences were obtained from populations in the western South Atlantic. The analysis revealed two genetically distinct, sympatric lineages with no gene flow, with L.
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