Dataset Information

Morphological and DNA Barcoding Evidence for Invasive Pest Thrips, Thrips parvispinus (Thripidae: Thysanoptera), Newly Recorded From India.

ABSTRACT: South East Asia pest thrips species, Thrips parvispinus (Karny), is a serious pest on a number of agricultural and horticultural crops in a number of plant families. Based on an integrated approach of morphology and DNA barcoding, invasion of this serious pest is reported first time from India on papaya plantations. Molecular data have corroborated with the morphological identification. Haplotyping data suggested that the Indonesia may be a probable source of invasion of this pest to India.

SUBMITTER: Tyagi K

PROVIDER: S-EPMC4677499 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Morphological and DNA Barcoding Evidence for Invasive Pest Thrips, Thrips parvispinus (Thripidae: Thysanoptera), Newly Recorded From India.

Tyagi Kaomud K Kumar Vikas V Singha Devkant D Chakraborty Rajasree R

Journal of insect science (Online) 20150721

South East Asia pest thrips species, Thrips parvispinus (Karny), is a serious pest on a number of agricultural and horticultural crops in a number of plant families. Based on an integrated approach of morphology and DNA barcoding, invasion of this serious pest is reported first time from India on papaya plantations. Molecular data have corroborated with the morphological identification. Haplotyping data suggested that the Indonesia may be a probable source of invasion of this pest to India. ...[more]

PMID: 26198870

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Project description:BackgroundOnion thrips (Thrips tabaci) is a complex of cryptic species with subtle morphological differences and distinct genetic backgrounds; thus, species identification using traditional methods remains challenging. The existence of different haplotypes and genotypes within a species can significantly influence various aspects of its biology, including host preference, reproductive capacity, resistance to pesticides, and vector competence for plant viruses. Understanding the genetic diversity and population structure of cryptic species within T. tabaci will not only aid in the development of more effective control strategies tailored to specific genetic variants but also in monitoring population dynamics, tracking invasive species, and implementing quarantine measures to prevent the spread of economically damaging thrips biotypes.MethodsThis study aims to explore intraspecies genetic diversity and molecular evolutionary relationships of the mitochondrial cytochrome oxidase gene subunit I (mtCOI) in T. tabaci populations from India. To capture diversity within the Indian T. tabaci populations, amplicon sequencing was performed for the thrips mtCOI gene from eight diverse localities in India. A total of 48 sequences retrieved for the mtCOI gene from the NCBI Nucleotide database were analysed.ResultsMultiple insertions and deletions were detected at various genomic positions across the populations from different localities, with the highest variation observed in the 300-400 genome position range. Molecular diversity analyses identified 30 haplotypes within the population, with certain subpopulations exhibiting higher gene flow. Analysis of single nucleotide polymorphism patterns within the mtCOI gene across diverse Indian locales revealed significant intrapopulation genetic heterogeneity and its potential repercussions on gene functionality. Elevated F statistics (Fst) values in the northern-western subpopulations suggested high genetic variability, particularly evident in haplotype networks originating mainly from the northern region, notably Delhi. While most populations displayed stable and ancient evolutionary histories, thrips populations from northern, western, and north-eastern regions indicated rapid growth.

Dataset Information

Morphological and DNA Barcoding Evidence for Invasive Pest Thrips, Thrips parvispinus (Thripidae: Thysanoptera), Newly Recorded From India.

Publications

Morphological and DNA Barcoding Evidence for Invasive Pest Thrips, Thrips parvispinus (Thripidae: Thysanoptera), Newly Recorded From India.

Similar Datasets

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