Phenotypic and genomic plasticity of alternative male reproductive tactics in sailfin mollies
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چکیده
منابع مشابه
Phenotypic and genomic plasticity of alternative male reproductive tactics in sailfin mollies.
A major goal of modern evolutionary biology is to understand the causes and consequences of phenotypic plasticity, the ability of a single genotype to produce multiple phenotypes in response to variable environments. While ecological and quantitative genetic studies have evaluated models of the evolution of adaptive plasticity, some long-standing questions about plasticity require more mechanis...
متن کاملSeasonal plasticity in male mating preferences in sailfin mollies
Although male choosiness may be influenced by predation risk, variation in mate availability, and fecundity that may vary spatially and over time, there is little evidence for variation in male mate choice preferences. In mixed populations of bisexual sailfin mollies (Poecilia latipinna) and unisexual Amazon mollies (Poecilia formosa), males encounter 2 types of potential mates: conspecific sex...
متن کاملFemale preference for symmetrical vertical bars in male sailfin mollies.
Fluctuating asymmetry is defined as random deviation from perfect bilateral symmetry in otherwise symmetrical morphological traits and originates from developmental errors during ontogeny. It is thought to reflect the inability of a genotype to buffer itself effectively against environmental perturbations, thus providing an honest phenotypic indicator of genetic quality. It has been proposed th...
متن کاملGeographical variation in reproductive character displacement in mate choice by male sailfin mollies.
Female Amazon mollies, Poecilia formosa, are a unisexual species that reproduce by gynogenesis. They must coexist and mate with males of other species (usually the mollies Poecilia latipinna or Poecilia mexicana) to induce embryogenesis, but inheritance is strictly maternal. We examined the mating preference of the male sailfin molly, P. latipinna, for female sailfin mollies versus Amazon molli...
متن کاملDifferential Sperm Priming by Male Sailfin Mollies (Poecilia latipinna): Effects of Female and Male Size
Recent interest in sperm competition has led to a re-evaluation of the ‘cheap sperm’ assumption inherent in many studies of sexual selection. In particular, mounting evidence suggests that male sperm availability can be increased by the presence of females. However, there is little information on how this interacts with male traits presumably affected by female mate choice, such as larger size....
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2014
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2013.2310