Genes having a stronger compensation ability for reproduction may also closely link to the red eye allele. However, some phenotypes (i.e., egg lethal effect, poor fecundity and survival ability) might be related to the eye color mutations. ![]() The mating behavior, egg production, developmental duration and mortality of nymphal stages were not significantly different between the normal-eyed and colored-eye mutant colonies. The biological and biochemical characterizations of eye color in BPH mutants have been described. It is an important biological characteristic. Inheritance studies revealed that a single recessive gene on an autosome controlled the eye color mutations.Ĭompound eyes are the visual organs for the majority of insects. Red-or orange-eyed mutant laboratory colonies of BPH have been established. In Delphacidae, red-eyed mutants were reported in the small brown planthopper Laodelphax striatellus (Fallén) and BPH. Among the few visible mutations in the BPH, eye color is one of the mutations that are regularly observed in laboratories. The BPH has a diploid chromosome number of 30 (28 autosomes combined with the sex determination system XY and XX in males and females, respectively). The brown planthopper (BPH) Nilaparvata lugens (Stål) (Arthropoda: Insecta), the most destructive phloem-sap-sucking insect pest of rice in Asia, belongs to the order Hemiptera, family Delphacidae. ![]() Genetic determinant of the compound eye color mutation in BPH. Location of the red gene, which may lead to the acquisition of the The present study constitutes the discovery of the Ninety-five offspring of the F 2 generation were The SSR marker BM20 was shown to be associated with the red eye Samples were generatedįrom 29 brown-eyed and 29 red-eyed individuals derived from an F 2 generation of a cross between brown-eyed wild type and red-eyed mutantĬolonies. A total of 387 SSR markers distributed throughout the BPHĪutosome were used to survey two bulked DNA samples. Segregant analysis (BSA), was performed to identify and map the location of the red gene. In this study, simple sequence repeats (SSRs), together with bulked ![]() The genetic inheritance and physiological effect of the eyeĬolor mutation in the BPH have been studied, but the location of a red gene controlling the red eye mutant phenotype on a chromosome has not beenĮlucidated. (Hemiptera: Delphacidae), a serious insect pest of rice in tropical and A red eye color mutation is commonlyįound in the brown planthopper (BPH), Nilaparvata lugens (St ål) The color of compound eyes is an importantīiological characteristic of insects.
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