Standing Up for Sticklebacks
نویسنده
چکیده
The morphology of the vertebrate skeleton exhibits tremendous plasticity in evolution, allowing adaptation to a wide variety of ecological niches and lifestyles. Indjeian et al. now uncover how the cis regulation of a gene controls skeletal variation in fish and might have contributed to the evolution of bipedalism in humans.
منابع مشابه
Revisiting rapid phenotypic evolution in sticklebacks: integrative thinking of standing genetic variation and phenotypic plasticity
Phenotypic evolution can result from new mutation, standing genetic variation, or phenotypic plasticity. Extensive reviews have focused on either comparing phenotypic evolution by new mutations vs. standing genetic variation (Barrett and Schluter, 2008) or the effect of phenotypic plasticity on generating biodiversity (Moczek, 2010; Pfennig et al., 2010; Moczek et al., 2011). This article focus...
متن کاملThe genetic and molecular architecture of phenotypic diversity in sticklebacks.
A major goal of evolutionary biology is to identify the genotypes and phenotypes that underlie adaptation to divergent environments. Stickleback fish, including the threespine stickleback (Gasterosteus aculeatus) and the ninespine stickleback (Pungitius pungitius), have been at the forefront of research to uncover the genetic and molecular architecture that underlies phenotypic diversity and ad...
متن کاملThe Genetic Architecture of Parallel Armor Plate Reduction in Threespine Sticklebacks
How many genetic changes control the evolution of new traits in natural populations? Are the same genetic changes seen in cases of parallel evolution? Despite long-standing interest in these questions, they have been difficult to address, particularly in vertebrates. We have analyzed the genetic basis of natural variation in three different aspects of the skeletal armor of threespine sticklebac...
متن کاملWidespread parallel evolution in sticklebacks by repeated fixation of Ectodysplasin alleles.
Major phenotypic changes evolve in parallel in nature by molecular mechanisms that are largely unknown. Here, we use positional cloning methods to identify the major chromosome locus controlling armor plate patterning in wild threespine sticklebacks. Mapping, sequencing, and transgenic studies show that the Ectodysplasin (EDA) signaling pathway plays a key role in evolutionary change in natural...
متن کاملGenetics and ecological speciation.
Species originate frequently by natural selection. A general mechanism by which this occurs is ecological speciation, defined as the evolution of reproductive isolation between populations as a result of ecologically-based divergent natural selection. The alternative mechanism is mutation-order speciation in which populations fix different mutations as they adapt to similar selection pressures....
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ورودعنوان ژورنال:
- Cell
دوره 164 شماره
صفحات -
تاریخ انتشار 2016