Genetic Structure of the Aphis craccivora (Hemiptera: Aphididae) From Thailand Inferred From Mitochondrial COI Gene Sequence

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Wongsa K., Duangphakdee O., Rattanawannee A.

ผู้เผยแพร่: Oxford University Press

ปีที่เผยแพร่ (ค.ศ.): 2017

วารสาร: Journal of Insect Science (1536-2442)

Volume number: 17

Issue number: 4

นอก: 1536-2442

eISSN: 1536-2442

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85032149102&doi=10.1093%2fjisesa%2fiex058&partnerID=40&md5=25798c0c0324b689e0aa856994d83a6e

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The cowpea aphid, Aphis craccivora Koch (Hemiptera: Aphididae), is one of the most destructive insect pests of legume plants worldwide. Although outbreaks of this pest occur annually in Thailand causing heavy damage, its genetic structure and demographic history are poorly understood. In order to determine genetic structure and genetic relationship of the geographic populations of this species, we examined sequences of mitochondrial cytochrome c oxidase subunit I (COI) gene of 51 individuals collected from 32 localities throughout Thailand. Within the sequences of these geographic populations, 32 polymorphic sites defined 17 haplotypes, ranging in sequence divergence from 0.2% (1 nucleotide) to 2.7% (16 nucleotides). A relatively high haplotype diversity but low nucleotide diversity was detected in the populations of A. craccivora, a finding that is typical for migratory species. Phylogenetic analysis revealed a weak phylogeographic structuring among the geographic populations and among the haplotypes, indicating their close relationship. Considering the distance between the sampling sites, the occurrence of identical haplotypes over wide areas is noteworthy. Moreover, the low genetic distance (FST ranging from -0.0460 to 0.3263) and high rate of per-generation female migration (Nm ranging from 1.0323 to 20.3333) suggested population exchange and gene flow between the A. craccivora populations in Thailand. ฉ The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America.

คำสำคัญ

Aphis craccivora, genetic distance, geographic variation, insect pest, mitochondrial DNA