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Author (up) Caillaud, M.C.; Losey, J.E. url  doi
openurl 
  Title Genetics of color polymorphism in the pea aphid, Acyrthosiphon pisum Type Journal Article
  Year 2010 Publication Journal of Insect Science (Online) Abbreviated Journal J Insect Sci  
  Volume 10 Issue Pages 95  
  Keywords Animals; Aphids/*genetics; Crosses, Genetic; Female; Male; Phenotype; Pigmentation/*genetics; *Polymorphism, Genetic  
  Abstract The genetic basis of color polymorphism is explored in the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Sternorrhyncha), in which two color morphs have been described (pink or green). Laboratory crosses and a Mendelian genetic analysis reveal that color polymorphism in pea aphids is determined by a single biallelic locus, which we name colorama, with alleles P and p, pink being dominant to green. The putative genotypes are Pp or PP for pink morphs, and pp for green morphs. This locus is shown to be autosomal. Last, there was no evidence of influence of the direction of the cross on color inheritance, thus showing that cytoplasmic effects and/or maternally-inherited symbionts play no role in the inheritance of color polymorphism in pea aphids. The existence of a simple genetic determinism for color polymorphism in a system in which genetic investigation is possible may facilitate investigations on the physiological and molecular mechanisms of genetically-based color morph variation, and the establishment of a link between this locus and fitness in a range of ecological conditions.  
  Address Department of Biology, 165 CNS, Ithaca College, Ithaca, NY 14850, USA. mcaillaud@ithaca.edu  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1536-2442 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:20673119 Approved no  
  Call Number SFC @ beatriz.gonzalez @ Serial 107  
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