{"title":"Constitutive expression of a synthetic cry1Ab gene confers resistance to potato tuber moth (Phthorimaea operculella Zeller) larva","authors":"H. Salehian, H. Rahnama, S. Dezhsetan, S. Babaei","doi":"10.1590/1984-70332021V21N1A9","DOIUrl":null,"url":null,"abstract":"Abstract The potato tuber moth (Phthorimaea operculella Zeller) (PTM) is a destructive potato pest. Bacillus thuringiensis cry genes encode crystal proteins that have toxic characteristics against PTM. The aim of the present study was to develop a PTM resistant potato cv. Agria using the synthetic Bt cry1Ab gene. The transformation vector was constructed by inserting the cry1Ab gene into the pBI121 binary expression vector. The Agrobacterium tumefaciens strain AGL1 harboring the pBI35SCry1Ab construct was used for potato transformation. The results indicated that out of 97 putative transformed lines, 30 lines were PCR positive. Southern blot analysis revealed that one to three copies of transgenes were inserted into transgenic lines. The immunoassay test revealed the expression of the Cry protein. Furthermore, the results of bioassays confirmed the high mortality level of neonate larvae. The results of this study suggested that the transgenic lines have significant potential in pest control.","PeriodicalId":10763,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crop Breeding and Applied Biotechnology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1590/1984-70332021V21N1A9","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 1
Abstract
Abstract The potato tuber moth (Phthorimaea operculella Zeller) (PTM) is a destructive potato pest. Bacillus thuringiensis cry genes encode crystal proteins that have toxic characteristics against PTM. The aim of the present study was to develop a PTM resistant potato cv. Agria using the synthetic Bt cry1Ab gene. The transformation vector was constructed by inserting the cry1Ab gene into the pBI121 binary expression vector. The Agrobacterium tumefaciens strain AGL1 harboring the pBI35SCry1Ab construct was used for potato transformation. The results indicated that out of 97 putative transformed lines, 30 lines were PCR positive. Southern blot analysis revealed that one to three copies of transgenes were inserted into transgenic lines. The immunoassay test revealed the expression of the Cry protein. Furthermore, the results of bioassays confirmed the high mortality level of neonate larvae. The results of this study suggested that the transgenic lines have significant potential in pest control.
期刊介绍：
The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL.
It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.
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