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The American Genetics Association (AGA) is a nonprofit membership society whose mission is to promote the study of genetics. To meet this obligation, the AGA publishes the Journal of Heredity and promotes research in all fields of genetics. The latter is accomplished through an annual meeting and symposium, as well as by sponsorship of special events ...
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Gene flow mediates the role of sex chromosome meiotic drive during complex speciation
During speciation, sex chromosomes often accumulate interspecific genetic incompatibilities faster than the rest of the genome. The drive theory posits that sex chromosomes are susceptible to recurrent bouts of meiotic drive and suppression, causing the ...
Colin D Meiklejohn +10 more
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In search of the Goldilocks zone for hybrid speciation. [PDF]
Hybridization has recently gained considerable interest both as a unique opportunity for observing speciation mechanisms and as a potential engine for speciation. The latter remains a controversial topic.
Alexandre Blanckaert, Claudia Bank
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Phedimus takesimensis (Ulleungdo flat-leaved stonecrop) is endemic to Ulleung and Dokdo Islands off the east coast of the Korean Peninsula. It was suggested that P. takesimensis originated via anagenetic speciation from the continental progenitor species
Hee-Seung Seo +2 more
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Speciation and the developmental alarm clock
New species arise as the genomes of populations diverge. The developmental ‘alarm clock’ of speciation sounds off when sufficient divergence in genetic control of development leads hybrid individuals to infertility or inviability, the world awoken to the
Asher D Cutter, Joanna D Bundus
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Background Divergent selection on host-plants is one of the main evolutionary forces driving ecological speciation in phytophagous insects. The ecological speciation might be challenging in the presence of gene flow and assortative mating because the ...
Estelle Fiteni +8 more
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Speciation is the key evolutionary process for generating biological diversity and has a central place in evolutionary and ecological research. How species diverge and adapt to different habitats is one of the most exciting areas in speciation studies ...
Zeyu Zheng +11 more
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The population genetics of speciation by cascade reinforcement
AbstractSpecies interactions drive diverse evolutionary outcomes. Speciation by cascade reinforcement represents one example of how species interactions can contribute to the proliferation of species. This process occurs when the divergence of mating traits in response to selection against interspecific hybridization incidentally leads to reproductive ...
Carlie B. Anderson +8 more
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The testing association of environmental variables with genetic and epigenetic variation could be crucial to deciphering the effects of environmental factors playing roles as selective drivers in ecological speciation.
Jia-Jia Cao +4 more
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Three problems in the genetics of speciation by selection
Speciation is the process by which barriers to gene flow evolve between populations. Although we now know that speciation is largely driven by natural selection, knowledge of the agents of selection and the genetic and genomic mechanisms that facilitate divergence is required for a satisfactory theory of speciation.
Dolph Schluter, Loren H. Rieseberg
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