Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives.
Crop wild relatives (CWR) are an indispensable source of alleles to improve desired traits in related crops. While knowledge on the genetic diversity of CWR can facilitate breeding and conservation strategies, it has poorly been assessed. Cultivated bananas are a major part of the diet and income of...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2021-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0253255 |
| _version_ | 1818995393488224256 |
|---|---|
| author | Arne Mertens Yves Bawin Samuel Vanden Abeele Simon Kallow Dang Toan Vu Loan Thi Le Tuong Dang Vu Rony Swennen Filip Vandelook Bart Panis Steven B Janssens |
| author_facet | Arne Mertens Yves Bawin Samuel Vanden Abeele Simon Kallow Dang Toan Vu Loan Thi Le Tuong Dang Vu Rony Swennen Filip Vandelook Bart Panis Steven B Janssens |
| author_sort | Arne Mertens |
| collection | DOAJ |
| description | Crop wild relatives (CWR) are an indispensable source of alleles to improve desired traits in related crops. While knowledge on the genetic diversity of CWR can facilitate breeding and conservation strategies, it has poorly been assessed. Cultivated bananas are a major part of the diet and income of hundreds of millions of people and can be considered as one of the most important fruits worldwide. Here, we assessed the genetic diversity and structure of Musa balbisiana, an important CWR of plantains, dessert and cooking bananas. Musa balbisiana has its origin in subtropical and tropical broadleaf forests of northern Indo-Burma. This includes a large part of northern Vietnam where until now, no populations have been sampled. We screened the genetic variation and structure present within and between 17 Vietnamese populations and six from China using 18 polymorphic SSR markers. Relatively high variation was found in populations from China and central Vietnam. Populations from northern Vietnam showed varying levels of genetic variation, with low variation in populations near the Red River. Low genetic variation was found in populations of southern Vietnam. Analyses of population structure revealed that populations of northern Vietnam formed a distinct genetic cluster from populations sampled in China. Together with populations of central Vietnam, populations from northern Vietnam could be subdivided into five clusters, likely caused by mountain ranges and connected river systems. We propose that populations sampled in central Vietnam and on the western side of the Hoang Lien Son mountain range in northern Vietnam belong to the native distribution area and should be prioritised for conservation. Southern range edge populations in central Vietnam had especially high genetic diversity, with a high number of unique alleles and might be connected with core populations in northern Laos and southwest China. Southern Vietnamese populations are considered imported and not native. |
| first_indexed | 2024-12-20T21:13:08Z |
| format | Article |
| id | doaj.art-bcb625dc28d4498cbdfc2e824ec1d41e |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-20T21:13:08Z |
| publishDate | 2021-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-bcb625dc28d4498cbdfc2e824ec1d41e2022-12-21T19:26:30ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01166e025325510.1371/journal.pone.0253255Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives.Arne MertensYves BawinSamuel Vanden AbeeleSimon KallowDang Toan VuLoan Thi LeTuong Dang VuRony SwennenFilip VandelookBart PanisSteven B JanssensCrop wild relatives (CWR) are an indispensable source of alleles to improve desired traits in related crops. While knowledge on the genetic diversity of CWR can facilitate breeding and conservation strategies, it has poorly been assessed. Cultivated bananas are a major part of the diet and income of hundreds of millions of people and can be considered as one of the most important fruits worldwide. Here, we assessed the genetic diversity and structure of Musa balbisiana, an important CWR of plantains, dessert and cooking bananas. Musa balbisiana has its origin in subtropical and tropical broadleaf forests of northern Indo-Burma. This includes a large part of northern Vietnam where until now, no populations have been sampled. We screened the genetic variation and structure present within and between 17 Vietnamese populations and six from China using 18 polymorphic SSR markers. Relatively high variation was found in populations from China and central Vietnam. Populations from northern Vietnam showed varying levels of genetic variation, with low variation in populations near the Red River. Low genetic variation was found in populations of southern Vietnam. Analyses of population structure revealed that populations of northern Vietnam formed a distinct genetic cluster from populations sampled in China. Together with populations of central Vietnam, populations from northern Vietnam could be subdivided into five clusters, likely caused by mountain ranges and connected river systems. We propose that populations sampled in central Vietnam and on the western side of the Hoang Lien Son mountain range in northern Vietnam belong to the native distribution area and should be prioritised for conservation. Southern range edge populations in central Vietnam had especially high genetic diversity, with a high number of unique alleles and might be connected with core populations in northern Laos and southwest China. Southern Vietnamese populations are considered imported and not native.https://doi.org/10.1371/journal.pone.0253255 |
| spellingShingle | Arne Mertens Yves Bawin Samuel Vanden Abeele Simon Kallow Dang Toan Vu Loan Thi Le Tuong Dang Vu Rony Swennen Filip Vandelook Bart Panis Steven B Janssens Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives. PLoS ONE |
| title | Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives. |
| title_full | Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives. |
| title_fullStr | Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives. |
| title_full_unstemmed | Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives. |
| title_short | Genetic diversity and structure of Musa balbisiana populations in Vietnam and its implications for the conservation of banana crop wild relatives. |
| title_sort | genetic diversity and structure of musa balbisiana populations in vietnam and its implications for the conservation of banana crop wild relatives |
| url | https://doi.org/10.1371/journal.pone.0253255 |
| work_keys_str_mv | AT arnemertens geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT yvesbawin geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT samuelvandenabeele geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT simonkallow geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT dangtoanvu geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT loanthile geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT tuongdangvu geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT ronyswennen geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT filipvandelook geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT bartpanis geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives AT stevenbjanssens geneticdiversityandstructureofmusabalbisianapopulationsinvietnamanditsimplicationsfortheconservationofbananacropwildrelatives |