A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa

Abstract The fruit fly (Diptera: Tephritidae) species, Ceratitis capitata, Ceratitis cosyra, Ceratitis rosa, Ceratitis quilicii, and Bactrocera dorsalis are of economic importance in South Africa. These agricultural pests cause extensive damage to a range of commercially produced fruit, primarily fo...

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Main Authors: Kelsey J. Andrews, Rachelle Bester, Aruna Manrakhan, Hans J. Maree
Format: Article
Language:English
Published: Nature Portfolio 2022-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-17382-x
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author Kelsey J. Andrews
Rachelle Bester
Aruna Manrakhan
Hans J. Maree
author_facet Kelsey J. Andrews
Rachelle Bester
Aruna Manrakhan
Hans J. Maree
author_sort Kelsey J. Andrews
collection DOAJ
description Abstract The fruit fly (Diptera: Tephritidae) species, Ceratitis capitata, Ceratitis cosyra, Ceratitis rosa, Ceratitis quilicii, and Bactrocera dorsalis are of economic importance in South Africa. These agricultural pests cause extensive damage to a range of commercially produced fruit, primarily for export. These pests are of phytosanitary significance, and their presence in fruit-producing regions in South Africa has led to restrictions in export trade of fresh produce. Accurate identification of these flies, particularly at immature stages intercepted in fruit consignments originating from South Africa, is essential but remains an ongoing challenge. A rapid and accurate identification assay to differentiate these five species is needed for inspection and pest surveillance. High throughput sequencing data were generated for each of the five fruit fly species, and five sets of species-specific primers were designed for use in a multiplex PCR. Each primer set amplifies an amplicon of a different size for each species allowing for accurate identification. PCR sensitivity tests demonstrate that the limit of detection for this assay is 10 ng and 4 ng of DNA when extracted from larvae and adult specimens, respectively. The assay developed can be applied in fruit inspection and survey activities within the country and at ports of entry.
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spelling doaj.art-1b900448e2454bafbdbdaf6b33a57b872022-12-22T02:05:31ZengNature PortfolioScientific Reports2045-23222022-07-011211810.1038/s41598-022-17382-xA multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South AfricaKelsey J. Andrews0Rachelle Bester1Aruna Manrakhan2Hans J. Maree3Department of Genetics, Stellenbosch UniversityDepartment of Genetics, Stellenbosch UniversityCitrus Research InternationalDepartment of Genetics, Stellenbosch UniversityAbstract The fruit fly (Diptera: Tephritidae) species, Ceratitis capitata, Ceratitis cosyra, Ceratitis rosa, Ceratitis quilicii, and Bactrocera dorsalis are of economic importance in South Africa. These agricultural pests cause extensive damage to a range of commercially produced fruit, primarily for export. These pests are of phytosanitary significance, and their presence in fruit-producing regions in South Africa has led to restrictions in export trade of fresh produce. Accurate identification of these flies, particularly at immature stages intercepted in fruit consignments originating from South Africa, is essential but remains an ongoing challenge. A rapid and accurate identification assay to differentiate these five species is needed for inspection and pest surveillance. High throughput sequencing data were generated for each of the five fruit fly species, and five sets of species-specific primers were designed for use in a multiplex PCR. Each primer set amplifies an amplicon of a different size for each species allowing for accurate identification. PCR sensitivity tests demonstrate that the limit of detection for this assay is 10 ng and 4 ng of DNA when extracted from larvae and adult specimens, respectively. The assay developed can be applied in fruit inspection and survey activities within the country and at ports of entry.https://doi.org/10.1038/s41598-022-17382-x
spellingShingle Kelsey J. Andrews
Rachelle Bester
Aruna Manrakhan
Hans J. Maree
A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa
Scientific Reports
title A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa
title_full A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa
title_fullStr A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa
title_full_unstemmed A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa
title_short A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa
title_sort multiplex pcr assay for the identification of fruit flies diptera tephritidae of economic importance in south africa
url https://doi.org/10.1038/s41598-022-17382-x
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