Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia
Helopeltis theivora is a known pest of cocoa and tea in Malaysia. Several mechanisms of insecticide resistance have been proposed such as reduction in the sensitivity of target sites, metabolic detoxification of pesticides and decreased penetration or translocation of pesticides. Polyacrylamide ge...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
2005
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/3599/ http://psasir.upm.edu.my/id/eprint/3599/1/Genetic_Relationship_and_Allozyme_Expression_of_Insecticide_Susceptible_and.pdf |
| _version_ | 1848839574094086144 |
|---|---|
| author | Md Latip, Siti Noor Hajjar Muhamad, Irita Tan, Soon Guan |
| author_facet | Md Latip, Siti Noor Hajjar Muhamad, Irita Tan, Soon Guan |
| author_sort | Md Latip, Siti Noor Hajjar |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Helopeltis theivora is a known pest of cocoa and tea in Malaysia. Several mechanisms of insecticide resistance
have been proposed such as reduction in the sensitivity of target sites, metabolic detoxification of pesticides and
decreased penetration or translocation of pesticides. Polyacrylamide gel electrophoresis (PAGE) was used to
determine the metabolic enzymes involved in the development of resistance in Helopeltis theivora. Adults of Helopeltis theivora were collected from three geographical locations namely Bukit Cheeding (Banting, Selangor), Sg. Palas (Cameron Highlands) and MARDI (Cameron Highlands, Pahang). In total, 25 enzymes were screened for polymorphisms and 8 enzymes were detectable in H. theivora. The dendogram resulting from the cluster analysis grouped the infrequently sprayed Banting and the MARDI populations together while the intensively sprayed Sg. Palas population clustered by itself. |
| first_indexed | 2025-11-15T07:13:36Z |
| format | Article |
| id | upm-3599 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:13:36Z |
| publishDate | 2005 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-35992015-09-15T01:24:14Z http://psasir.upm.edu.my/id/eprint/3599/ Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia Md Latip, Siti Noor Hajjar Muhamad, Irita Tan, Soon Guan Helopeltis theivora is a known pest of cocoa and tea in Malaysia. Several mechanisms of insecticide resistance have been proposed such as reduction in the sensitivity of target sites, metabolic detoxification of pesticides and decreased penetration or translocation of pesticides. Polyacrylamide gel electrophoresis (PAGE) was used to determine the metabolic enzymes involved in the development of resistance in Helopeltis theivora. Adults of Helopeltis theivora were collected from three geographical locations namely Bukit Cheeding (Banting, Selangor), Sg. Palas (Cameron Highlands) and MARDI (Cameron Highlands, Pahang). In total, 25 enzymes were screened for polymorphisms and 8 enzymes were detectable in H. theivora. The dendogram resulting from the cluster analysis grouped the infrequently sprayed Banting and the MARDI populations together while the intensively sprayed Sg. Palas population clustered by itself. Universiti Putra Malaysia Press 2005 Article NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/3599/1/Genetic_Relationship_and_Allozyme_Expression_of_Insecticide_Susceptible_and.pdf Md Latip, Siti Noor Hajjar and Muhamad, Irita and Tan, Soon Guan (2005) Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia. Pertanika Journal of Tropical Agricultural Science, 28 (1). pp. 59-65. ISSN 1511-3701 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2028%20(1)%20Apr.%202005/JTAS%20Vol.28%20(1)%202005%20(59-65).pdf |
| spellingShingle | Md Latip, Siti Noor Hajjar Muhamad, Irita Tan, Soon Guan Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia |
| title | Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia |
| title_full | Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia |
| title_fullStr | Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia |
| title_full_unstemmed | Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia |
| title_short | Genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from Peninsular Malaysia |
| title_sort | genetic relationship and allozyme expression of insecticide susceptible and resistant helopeltis theivora populations from peninsular malaysia |
| url | http://psasir.upm.edu.my/id/eprint/3599/ http://psasir.upm.edu.my/id/eprint/3599/ http://psasir.upm.edu.my/id/eprint/3599/1/Genetic_Relationship_and_Allozyme_Expression_of_Insecticide_Susceptible_and.pdf |