Leeban H. Yusuf

Genomic signatures of adaptation across a landscape of crickets following the introduction of a parasitoid fly

Jack G. Rayner, Leeban H. Yusuf, Renjie Zhang, Shangzhe Zhang et autres

Novel species interactions provide an opportunity to assess the earliest stages of genetic adaptation. We combined population genomics and field selection surveys to explore the genomic and geographic landscape of adaptation in small, fragmented Hawaiian cricket populations, which are parasitized by larvae …

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Ecological genomics of a novel host-parasitoid arms-race in nature

Leeban H. Yusuf, Jack G. Rayner, Renjie Zhang, Kalyani Z Twyman et autres

Abstract Novel antagonistic interactions between species are expected to drive especially rapid coevolution. However, little is known about the genomic basis of such coevolution in nature because novel inter-specific interactions are rarely observed. Here, we study two species that recently came into …

us, gb, cn (code pays fourni par la source)

Genomic analyses in Drosophila do not support the classic allopatric model of speciation

Leeban H. Yusuf, Dominik R Laetsch, Konrad Lohse, Michael G. Ritchie

Abstract The allopatric model of speciation has dominated our understanding of speciation biology and biogeography since the Modern Synthesis. It is uncontroversial because reproductive isolation may readily emerge as a by-product of evolutionary divergence during allopatry unopposed by gene flow. Recent genomic …

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Genomic signatures of adaptation across a landscape of crickets exposed to an introduced parasitoid

Jack G. Rayner, Leeban H. Yusuf, Renjie Zhang, Shangzhe Zhang et autres

Abstract Novel species interactions provide an opportunity to assess the earliest stages of genetic adaptation in wild populations. We explored the genomic and geographic landscape of adaptation in small, fragmented Hawaiian cricket populations, which are parasitised by larvae of an introduced fly …

us, gb (code pays fourni par la source)

Cis-regulatory divergence and mate recognition in behaviourally isolated cricket species

Leeban H. Yusuf, Shangzhe Zhang, Vivienne Litzke, Stefan R. Pulver et autres

Abstract Cis-regulatory evolution has been implicated in morphological and physiological reproductive isolation, but its role in divergence of mate recognition behaviours is unknown. The latter are often the first, most powerful mating barriers to evolve during speciation, but understanding their genetics is …

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Testing the genomic overlap between intraspecific mating traits and interspecific mating barriers

Leeban H. Yusuf, Sónia Pascoal, Peter A. Moran, Nathan W. Bailey

Abstract Differences in interspecific mating traits, such as male sexual signals and female preferences, often evolve quickly as initial barriers to gene flow between nascent lineages, and they may also strengthen such barriers during secondary contact via reinforcement. However, it is an …

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Competing adaptations maintain nonadaptive variation in a wild cricket population

Jack G. Rayner, Franca Eichenberger, Jessica V. A. Bainbridge, Shangzhe Zhang et autres

How emerging adaptive variants interact is an important factor in the evolution of wild populations, but the opportunity to empirically study this interaction is rare. We recently documented the emergence of an adaptive phenotype “curly-wing” in Hawaiian populations of field crickets ( …

us, gb, ch, cn (code pays fourni par la source)

From whole bodies to single cells: A guide to transcriptomic approaches for ecology and evolutionary biology

Katja M. Hoedjes, Sonja Grath, Nico Posnien, Michael G. Ritchie et autres

RNA sequencing (RNAseq) methodology has experienced a burst of technological developments in the last decade, which has opened up opportunities for studying the mechanisms of adaptation to environmental factors at both the organismal and cellular level. Selecting the most suitable experimental approach …

nl, de, gb, se, es, ch, dk, fi, us (code pays fourni par la source)

Evidence for gene flow and trait reversal during radiation of Mexican Goodeid fish

Leeban H. Yusuf, Yolitzi Saldívar Lemus, Peter Thorpe, Constantino Macı́as Garcı́a et autres

Understanding the phylogeographic history of a group and identifying the factors contributing to speciation is an important challenge in evolutionary biology. The Goodeinae are a group of live-bearing fishes endemic to Mexico. Here, we develop genomic resources for species within the Goodeinae …

gb, us, mx (code pays fourni par la source)

Genomic analyses in Drosophila do not support the classic allopatric model of speciation

Leeban H. Yusuf, Dominik R. Laetsch, Konrad Lohse, Michael G. Ritchie

Abstract The allopatric model of speciation has dominated our understanding of speciation biology and biogeography since the Modern Synthesis. It is uncontroversial because reproductive isolation may readily emerge as a by-product of evolutionary divergence during allopatry unopposed by gene flow. Recent genomic …

gb (code pays fourni par la source)

How Important Is Sexual Isolation to Speciation?

Kerry L. Shaw, Christopher R. Cooney, Tamra C. Mendelson, Michael G. Ritchie et autres

A central role for sexual isolation in the formation of new species and establishment of species boundaries has been noticed since Darwin and is frequently emphasized in the modern literature on speciation. However, an objective evaluation of when and how sexual isolation …

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Reproductive Isolation, Prezygotic

Michael G. Ritchie, Leeban H. Yusuf

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