Search results for "primary sex ratio"

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Genetic variation in the primary sex ratio in populations of the intertidal copepod, Tigriopus californicus, is widespread on Vancouver Island.

2011

Hypothesis: Genetic variation for the primary sex ratio is widespread in a copepodwith polygenic sex determination. Cytoplasmic sex ratio distorters (e.g. Wolbachia andmicrosporidians) influence the primary sex ratio in this copepod. Organism: The intertidal copepod, Tigriopus californicus; six populations from VancouverIsland, British Columbia. Study site: Quantitative genetics experiment in the laboratory. PCR and antibioticsexperiment to test for the presence of cytoplasmic sex ratio distorters. Results: Genetic variation for the primary sex ratio was found in five of the six populationssurveyed. The primary sex ratio was paternally transmitted. There was no evidence thatWolbachia or mic…

[ SDE.BE ] Environmental Sciences/Biodiversity and Ecologycopepodfungipolygenic sex determination[ SDV.GEN.GA ] Life Sciences [q-bio]/Genetics/Animal genetics[SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal geneticsheritability[ SDV.EE.ECO ] Life Sciences [q-bio]/Ecology environment/EcosystemsWolbachia.primary sex ratioparasitic diseases[SDV.BA.ZI] Life Sciences [q-bio]/Animal biology/Invertebrate Zoology[SDV.GEN.GPO] Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]microsporidiacytoplasmic sex ratio distortersTigriopus californicusRifampin[ SDV.BBM ] Life Sciences [q-bio]/Biochemistry Molecular BiologyWolbachiacytoplasmic feminizers
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