Abstract
Banana (<i>Musa</i> spp) is among the top ten most important food crops worldwide in terms of production and consumption. However, banana production is threatened by several bacterial diseases, including Banana Xanthomonas wilt (BXW) caused by <i>Xanthomonas campestris </i>pathovar (pv)<i>. musacearum</i>, Moko disease caused by <i>Ralstonia solanacearum,</i> and Blood disease caused by <i>Ralstonia syzygii </i>sub-species (subsp)<i>. Celebesensis. </i>Banana Xanthomonas wilt (BXW), caused by <i>Xanthomonas campestris pv. musacearum</i> (Xcm) is the most economically important bacterial disease affecting banana production, particularly in the African Great Lakes region. Banana breeding through conventional approach is key to overcoming yield losses to bacterial phytopathogens. However, conventional breeding of bananas is limited by low male and female fertility and the lack of diversity and important traits in the gene pool. At present, only <i>Musa</i> <i>balbisiana</i> (banana progenitor species) is resistant to BXW, but breeders do not prefer it for breeding because it harbors banana streak virus (BSV) sequences in its B genome, which get activated during abiotic stress, such as drought, leading Banana Streak Disease (BSD). Thus, genetic engineering serves as a viable alternative and complement to conventional breeding for banana improvement. This review highlights the strategies, challenges, status, and prospects of genetic engineering of bananas against bacterial diseases.
Highlights
Banana (Musa spp) is an herbaceous, perennial staple crop grown in tropical and sub-tropical countries
There are three bacterial diseases of economic importance globally: Banana Xanthomonas wilt (BXW) caused by Xanthomonas campestris pathovar. musacearum, Moko disease caused by Ralstonia solanacearum, and Blood disease caused by Ralstonia syzygii sub-species
Radopholus similis and Pratylenchus coffeae, and insect pests, especially weevils are constant threats to banana production, though they are of minor economic importance [7]
Summary
Banana (Musa spp) is an herbaceous, perennial staple crop grown in tropical and sub-tropical countries. It belongs to the family Musaceae and genus Musa. Bacterial diseases pose a serious threat to banana production worldwide. There are three bacterial diseases of economic importance globally: Banana Xanthomonas wilt (BXW) caused by Xanthomonas campestris pathovar (pv). Radopholus similis and Pratylenchus coffeae, and insect pests, especially weevils (cosmopolites sordidus) are constant threats to banana production, though they are of minor economic importance [7]. Conventional banana breeding is challenging because the crop is clonally propagated and has limited genetic diversity in its gene pool. We summarize the challenges, status, and prospects of genetic engineering of bananas against bacterial diseases
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
