On the scent of speciation: the chemosensory system and its role in premating isolation.
Carole M. Smadja,Roger K. Butlin +1 more
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TLDR
Genetic approaches to chemosensory gene families and to enzymes involved in biosynthetic pathways of signal compounds now provide new opportunities to dissect the genetic basis of these complex traits and of their divergence among taxa.Abstract:
Chemosensory speciation is characterized by the evolution of barriers to genetic exchange that involve chemosensory systems and chemical signals. Here, we review some representative studies documenting chemosensory speciation in an attempt to evaluate the importance and the different aspects of the process in nature and to gain insights into the genetic basis and the evolutionary mechanisms of chemosensory trait divergence. Although most studies of chemosensory speciation concern sexual isolation mediated by pheromone divergence, especially in Drosophila and moth species, other chemically based behaviours (habitat choice, pollinator attraction) can also play an important role in speciation and are likely to do so in a wide range of invertebrate and vertebrate species. Adaptive divergence of chemosensory traits in response to factors such as pollinators, hosts and conspecifics commonly drives the evolution of chemical prezygotic barriers. Although the genetic basis of chemosensory speciation remains largely unknown, genomic approaches to chemosensory gene families and to enzymes involved in biosynthetic pathways of signal compounds now provide new opportunities to dissect the genetic basis of these complex traits and of their divergence among taxa.read more
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Journal ArticleDOI
Ecology, sexual selection and speciation
Martine E. Maan,Ole Seehausen +1 more
TL;DR: The available data strongly support various diversifying effects that emerge from interactions between sexual selection and environmental heterogeneity and it is suggested that evaluating the evolutionary consequences of these effects requires a better integration of behavioural, ecological and evolutionary research.
Journal ArticleDOI
What do we need to know about speciation
Roger K. Butlin,Allan Debelle,Claudius Kerth,Rhonda R. Snook,Leo W. Beukeboom,Ruth F Castillo Cajas,Wenwen Diao,Martine E. Maan,Silvia Paolucci,Franz J. Weissing,Louis van de Zande,Anneli Hoikkala,Elzemiek Geuverink,Jackson H. Jennings,Maaria Kankare,K. Emily Knott,Venera Tyukmaeva,Christos Zoumadakis,Michael G. Ritchie,Daniel Barker,Elina Immonen,Mark Kirkpatrick,Mohamed A. F. Noor,Constantino Macías Garcia,Thomas Schmitt,Menno Schilthuizen +25 more
TL;DR: A distillation of questions about the mechanisms of speciation, the genetic basis of speciating and the relationship between speciation and diversity are presented.
Book
Pheromones and Animal Behavior: Chemical Signals and Signatures
TL;DR: This extensively revised and expanded book offers a thorough exploration of the evolutionary and behavioral contexts of chemical communication along with a detailed introduction to the molecular and neural basis of signal perception through olfaction.
Journal ArticleDOI
Comparative Genomics of the Odorant-Binding and Chemosensory Protein Gene Families across the Arthropoda: Origin and Evolutionary History of the Chemosensory System
Filipe G. Vieira,Julio Rozas +1 more
TL;DR: The homologous nature of the OBP and CSP gene families, dating back their most recent common ancestor after the terrestrialization of Arthropoda (380--450 Ma) are suggested and a scenario for the origin and diversification of these families is proposed.
Journal ArticleDOI
Yeast, not fruit volatiles mediate Drosophila melanogaster attraction, oviposition and development
Paul G. Becher,Paul G. Becher,Gerhard Flick,Elżbieta Rozpędowska,Elżbieta Rozpędowska,Alexandra Schmidt,Arne Hagman,Sébastien Lebreton,Mattias C. Larsson,Bill S. Hansson,Jure Piškur,Peter Witzgall,Marie Bengtsson +12 more
TL;DR: It is shown that baker's yeast Saccharomyces cerevisiae on its own is sufficient for fruit fly attraction, oviposition and larval development, and the traditional plantherbivore niche concept needs to be updated, to accommodate for the role of micro-organisms in insectplant interactions.
References
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A novel multigene family may encode odorant receptors: A molecular basis for odor recognition
Linda B. Buck,Richard Axel +1 more
TL;DR: This work has cloned and characterized 18 different members of an extremely large multigene family that encodes seven transmembrane domain proteins whose expression is restricted to the olfactory epithelium and is likely to encode a diverse family of odorant receptors.
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Journal ArticleDOI
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TL;DR: It is argued that more detailed studies are needed, examining extinction rates and other sources of variation in species richness, to convincingly conclude speciation by sexual selection.
Journal ArticleDOI
How the olfactory system makes sense of scents
TL;DR: Growing interest in the detection of diverse compounds at single-molecule levels has made the olfactory system an important system for biological modelling.
Book
Endless Forms: Species and Speciation
TL;DR: This volume presents the newest findings from their studies and brings readers up to date on species concepts, modes of speciation, the nature of reproductive barriers, the forces that drive divergence of populations, the genetic control of reproductive isolation, and the role played by hybrid zones and hybridization in speciation.