Variations in mitochondrial DNA cytochrome oxidase II gene of some Philippine populations of the Asian corn borer, Ostrinia furnacalis (Guenée) (Lepidoptera: Crambidae)

Issue Date

10-2013

Abstract

Genetic variation in 28 local populations of Asian corn borer (ACB), Ostrinia furnacalis (Guenée) was studied using mitochondrial DNA (mtDNA) cytochrome oxidase II (COXII) gene. Analyses of one hundred fifty four samples revealed nucleotide compositionof 38.36% (A), 38.54% (T), 12.67% (C), and 10.43% (G) COXII gene. The overall nucleotide and haplotype diversities were 0.00644 ± 0.00262 and 0.406 ± 0.049, respectively. A total of 17 haplotypes were observed with moderate genetic differentiation value (Fst) of 0.0802. Analysis of molecular variance (AMOVA) indicated that the high significant proportion of the total genetic differences, which is highly 91.98%, was due to variation within the populations. In addition, neutrality tests suggested that local ACB populations have undergone population expansion due to presence of rare haplotypes. Results suggests that the genetic variations occurring among and within the ACB populations studied might be attributed to the adaptation of ACB to their local environments. Those rare haplotypes might be carriers of genes which have high ecological fitness or those individuals have high adaptation to a given environment. Based on the results, there must be a constant custom to designed monitoring program for different municipalities where the GM corn is being planted.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

27

Issue

2

Page

199

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

OSTRINIA FURNACALIS; LEPIDOPTERA; PESTS OF PLANTS; MITOCHONDRIAL DNA; CYTOCHROMES; PHILIPPINES

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