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  • 1
    ISSN: 1573-4927
    Keywords: Ostrinia nubilalis Hübner ; Ostrinia furnacalis Guenée ; allozyme ; genetic identity ; genetic distance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract To test the hypothesis of the migration of the corn borer, the allozymes of nine populations of the corn borer(Ostrinia) in China were checked using verticalslab polyacrylamide gel electrophoresis. Eight loci of six allozymes were analyzed. The mean of the genetic identities among the nine populations calculated from the allele frequencies was 0.99068, much closer than that of other species and geographical populations. The mean (0.97955) of the genetic identities between the XJYN population (Ostrinia nubilalis Hübner, collected from Yining, Xinjiang Autonomous Region) and each of the other eight populations (O. furnacalis Guenée) was significantly smaller than that between the pairs of the eight populations (0.99386;t test,P〈0.01). Although the population XJYN clearly deviates from the other eight populations in the dendrogram, the relationship of the two species of corn borer was very close. It is possible that the speciation of corn borer may have resulted from single-gene substitutions.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-4927
    Keywords: CORN BORER ; GENETIC DISTANCE ; GENETIC SIMILARITY ; RANDOM AMPLIFIED POLYMORPHIC DNA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The genetic variation among and within sixpopulations of the corn borer was determined by usingrandom amplified polymorphic DNA (RAPD) markers.Extensive genetic variability was detected. Of the 802RAPD markers obtained, 781 (97.4%) were polymorphicamong populations. Genetic similarities and distancesbetween each pair of individuals were calculated. UPGMAcluster analysis showed that the YN population (Ostrinia nubilalis Hubner) and the other fivepopulations (Ostrinia furnacalis Guenee) made upbranches of the corn borer lineage, instead ofdeviating; there was no significant geneticdifferentiation between YN and the other five corn borerpopulations.
    Type of Medium: Electronic Resource
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