Species determination of Malaysian <i>Bactrocera</i> pests using PCR‐RFLP analyses (Diptera: Tephritidae)

Wolbachia endosymbiont is a maternally inherited bacteria that infects a wide range of hosts, including parasitoids and their respective hosts. In this study, a total of 171 individuals of braconid endoparasitoids, consisting of Fopius arisanus, F. vandenboschi, Diachasmimorpha longicaudata, Psyttalia sp.1, Psyttalia sp.2, P. fletcheri and P. incisi, and their host tephritid fruit flies of Bactrocera dorsalis, B. papayae and B. carambolae infesting carambola were screened molecularly by the Wolbachia surface protein (wsp) gene. Interestingly, 21 (24.14%) wsp gene sequences were successfully isolated from 87 braconid samples tested, showing a low infection rate of Wolbachia. However, despite the close ecological contact between parasitoids and their hosts, none of the tephritid individuals were infected by Wolbachia. A comparison of wsp and host mitochondrial cytochrome c oxidase subunit I (COI) sequences found that braconids did not cluster in connection with Wolbachia infection, suggesting that selective sweep has not yet occurred because Wolbachia may have recently infected the braconid populations in Peninsular Malaysia (≈0.1 MYA). Despite of relatively recent infections of Wolbachia, the history of Wolbachia infection into F. arisanus populations of Peninsular Malaysia is complex, involving at least two independent occasions of infection and two secondary losses.

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“…; Chua et al . ). These pests have directly caused defects to carambola and have reduced the quality of the fruits, thus causing economic loss.…”

Section: Introductionmentioning

confidence: 97%

Prevalence and evolutionary history of endosymbiont Wolbachia (Rickettsiales: Anaplasmataceae) in parasitoids (Hymenoptera: Braconidae) associated with Bactrocera fruit flies (Diptera: Tephritidae) infesting carambola

Mohammed

Aman-Zuki

Yusof

et al. 2017

Entomological Science

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“…An ongoing research effort is being directed towards resolving the biological relationships among these taxonomically challenging species, with some publications finding no difference between them (Tan et al , 2011), and others finding subtle morphological differences (Drew et al , 2008). Recent molecular phylogenies and species‐level barcoding studies consistently suggest that these taxa are very close genetically (Armstrong & Ball, 2005; Chua et al , 2010; Krosch et al , 2012). However, it is still unclear from the literature whether, where such differences are found, these equate to interspecific or intraspecific variation (Schutze et al , 2012).…”

Section: Introductionmentioning

confidence: 99%

Piecing together an integrative taxonomic puzzle: microsatellite, wing shape and aedeagus length analyses of Bactrocera dorsalis s.l. (Diptera: Tephritidae) find no evidence of multiple lineages in a proposed contact zone along the Thai/Malay Peninsula

Krosch

Schutze

Armstrong

et al. 2012

Systematic Entomology

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Bactrocera dorsalis (Hendel) and B. papayae Drew & Hancock represent a closely related sibling species pair for which the biological species limits are unclear; i.e. it is uncertain if they are truely two biological species, or one biological species which has been incorrectly split taxonomically. The geographical ranges of the two taxa are thought to abut or overlap on or around the Isthmus of Kra, a recognised biogeographic barrier located on the narrowest portion of the Thai Peninsula. We collected fresh material of B. dorsalis s.l. (i.e. B. dorsalis s.s.+ B. papayae) in a north–south transect down the Thai Peninsula, from areas regarded as being exclusively B. dorsalis s.s., across the Kra Isthmus, and into regions regarded as exclusively B. papayae. We carried out microsatellite analyses and took measurements of male genitalia and wing shape, both used previously to separate the taxa. No significant population structuring was found in the microsatellite analysis, consistent with one, predominantly panmictic population. Both morphological datasets showed consistent, clinal variation along the transect, without disjunction. No evidence supported historical vicariance driven by the Isthmus of Kra, and no dataset supported the current taxonomy of two species. Rather, within and across the area of range overlap or abutment between the two species, only continuous morphological and genetic variation was recorded. Recognition that morphological traits previously used to separate these taxa are continuous, and that there is no genetic evidence for population segregation in the region of suspected species overlap, is consistent with a growing body of literature that reports no evidence of biological differentiation between these taxa.

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“…Hence, comparison information can be made by looking at BLAST analysis and the construction of MP and BI trees has given more advantages to discriminate between closely related species. Bactrocera species also were confirmed using COI gene which has been extensively used in most identification of these species [18]. This study indicated that B. papayae and B. carambolae have infested wide variety of crops including star fruits, guavas and wax apples.…”

Section: Discussionmentioning

confidence: 62%

Determination of Opiinae parasitoids (Hymenoptera: Braconidae) associated with crop infesting Bactrocera spp. (Diptera: Tephritidae) using COI and Cyt b sequences

Shariff

Yaakop²,

Zain³

2013

AIP Conference Proceedings

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Species determination of Malaysian Bactrocera pests using PCR‐RFLP analyses (Diptera: Tephritidae)

Abstract: PCR-RFLP analyses are able to identify positively five Bactrocera species, while B. papayae and B. carambolae might possibly be separated from one another, even if immature life stages or adult body parts are used.

Cited by 24 publications

References 17 publications

Prevalence and evolutionary history of endosymbiont Wolbachia (Rickettsiales: Anaplasmataceae) in parasitoids (Hymenoptera: Braconidae) associated with Bactrocera fruit flies (Diptera: Tephritidae) infesting carambola

Prevalence and evolutionary history of endosymbiont Wolbachia (Rickettsiales: Anaplasmataceae) in parasitoids (Hymenoptera: Braconidae) associated with Bactrocera fruit flies (Diptera: Tephritidae) infesting carambola

Piecing together an integrative taxonomic puzzle: microsatellite, wing shape and aedeagus length analyses of Bactrocera dorsalis s.l. (Diptera: Tephritidae) find no evidence of multiple lineages in a proposed contact zone along the Thai/Malay Peninsula

Determination of Opiinae parasitoids (Hymenoptera: Braconidae) associated with crop infesting Bactrocera spp. (Diptera: Tephritidae) using COI and Cyt b sequences

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