Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa
Cassava varieties resistant to cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) are needed for the food and income security of the rural poor in eastern and southern Africa (ESA). The International Institute of Tropical Agriculture led five national cassava breeding programs (Mal...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2018
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/92970 |
| _version_ | 1855517751458660352 |
|---|---|
| author | Tumwegamire, Silver Kanju, E. Legg, James P. Shirima, R. Kombo, S. Mkamilo, G.S. Mtunda, K. Sichalwe, K. Kulembeka, H.P. Ndyetabura, I. Saleh, H. Kawuki, R.S. Alicai, Titus Adiga, G. Benesi, I.R.M. Mhone, A. Zacarias, A. Matsimbe, S.F. Munga, T. Ateka, E. Navangi, L. Maruthi, M.N. Mwatuni, F. Ngundo, G. Mwangangi, M. Mbugua, E. Ndunguru, J. Rajabu, C. Mark, D. |
| author_browse | Adiga, G. Alicai, Titus Ateka, E. Benesi, I.R.M. Kanju, E. Kawuki, R.S. Kombo, S. Kulembeka, H.P. Legg, James P. Mark, D. Maruthi, M.N. Matsimbe, S.F. Mbugua, E. Mhone, A. Mkamilo, G.S. Mtunda, K. Munga, T. Mwangangi, M. Mwatuni, F. Navangi, L. Ndunguru, J. Ndyetabura, I. Ngundo, G. Rajabu, C. Saleh, H. Shirima, R. Sichalwe, K. Tumwegamire, Silver Zacarias, A. |
| author_facet | Tumwegamire, Silver Kanju, E. Legg, James P. Shirima, R. Kombo, S. Mkamilo, G.S. Mtunda, K. Sichalwe, K. Kulembeka, H.P. Ndyetabura, I. Saleh, H. Kawuki, R.S. Alicai, Titus Adiga, G. Benesi, I.R.M. Mhone, A. Zacarias, A. Matsimbe, S.F. Munga, T. Ateka, E. Navangi, L. Maruthi, M.N. Mwatuni, F. Ngundo, G. Mwangangi, M. Mbugua, E. Ndunguru, J. Rajabu, C. Mark, D. |
| author_sort | Tumwegamire, Silver |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cassava varieties resistant to cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) are needed for the food and income security of the rural poor in eastern and southern Africa (ESA). The International Institute of Tropical Agriculture led five national cassava breeding programs (Malawi, Mozambique, Kenya, Tanzania and Uganda) in virus-cleaning and exchanging elite cassava germplasm resistant to both diseases. This paper documents the experiences and lessons learned from the process. Thirty-one clones (25 elite, two standard and four national) were submitted by the five breeding programs to the Natural Resources Institute and Kenya Plant Health Inspectorate Services for virus cleaning and indexing. Subsequently, ca 75 in-vitro virus-indexed plantlets per clone were sent to Genetic Technologies International Limited (GTIL), a private tissue culture (TC) lab in Kenya, and micro-propagated to produce ≥1500 plantlets. After fulfilling all the formal procedures of germplasm exchange between countries ≥300 plantlets per clone were sent to each partner country. National check clones susceptible to CMD/CBSD were sent only to their countries of origin. In each country, the in-vitro plantlets were acclimatized under screen house conditions and transferred to clean isolated sites for field multiplication. All the clones were cleaned of the viruses, except Tomo. The cleaning process was slow for F19-NL, NASE1, and Kibandameno and TC micro-propagation at GTIL was less efficient for Pwani, Tajirika, NASE1, and Okhumelela than for the other clones. Difficulties in cleaning recalcitrant clones affected the timeline for establishing the multi-site evaluation trials in target countries. The initiative is the one of the kind to successfully clean and exchange elite germplasm as a joint action to combat CBSD in ESA. Adequate preparation in terms of infrastructure and personnel are critical to successfully receiving and adapting the indexed in-vitro plants as new germplasm. |
| format | Journal Article |
| id | CGSpace92970 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace929702025-11-11T10:06:41Z Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa Tumwegamire, Silver Kanju, E. Legg, James P. Shirima, R. Kombo, S. Mkamilo, G.S. Mtunda, K. Sichalwe, K. Kulembeka, H.P. Ndyetabura, I. Saleh, H. Kawuki, R.S. Alicai, Titus Adiga, G. Benesi, I.R.M. Mhone, A. Zacarias, A. Matsimbe, S.F. Munga, T. Ateka, E. Navangi, L. Maruthi, M.N. Mwatuni, F. Ngundo, G. Mwangangi, M. Mbugua, E. Ndunguru, J. Rajabu, C. Mark, D. cassava exchange in vitro germplasm plant diseases cassava varieties african cassava mosaic virus cassava brown streak disease development food science Cassava varieties resistant to cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) are needed for the food and income security of the rural poor in eastern and southern Africa (ESA). The International Institute of Tropical Agriculture led five national cassava breeding programs (Malawi, Mozambique, Kenya, Tanzania and Uganda) in virus-cleaning and exchanging elite cassava germplasm resistant to both diseases. This paper documents the experiences and lessons learned from the process. Thirty-one clones (25 elite, two standard and four national) were submitted by the five breeding programs to the Natural Resources Institute and Kenya Plant Health Inspectorate Services for virus cleaning and indexing. Subsequently, ca 75 in-vitro virus-indexed plantlets per clone were sent to Genetic Technologies International Limited (GTIL), a private tissue culture (TC) lab in Kenya, and micro-propagated to produce ≥1500 plantlets. After fulfilling all the formal procedures of germplasm exchange between countries ≥300 plantlets per clone were sent to each partner country. National check clones susceptible to CMD/CBSD were sent only to their countries of origin. In each country, the in-vitro plantlets were acclimatized under screen house conditions and transferred to clean isolated sites for field multiplication. All the clones were cleaned of the viruses, except Tomo. The cleaning process was slow for F19-NL, NASE1, and Kibandameno and TC micro-propagation at GTIL was less efficient for Pwani, Tajirika, NASE1, and Okhumelela than for the other clones. Difficulties in cleaning recalcitrant clones affected the timeline for establishing the multi-site evaluation trials in target countries. The initiative is the one of the kind to successfully clean and exchange elite germplasm as a joint action to combat CBSD in ESA. Adequate preparation in terms of infrastructure and personnel are critical to successfully receiving and adapting the indexed in-vitro plants as new germplasm. 2018-04 2018-05-30T12:56:35Z 2018-05-30T12:56:35Z Journal Article https://hdl.handle.net/10568/92970 en Open Access application/pdf Springer Tumwegamire, S., Kanju, E., Legg, J., Shirima, R., Kombo, S., Mkamilo, G., ... & Mark, D. (2018). Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa. Food Security, 1-18. |
| spellingShingle | cassava exchange in vitro germplasm plant diseases cassava varieties african cassava mosaic virus cassava brown streak disease development food science Tumwegamire, Silver Kanju, E. Legg, James P. Shirima, R. Kombo, S. Mkamilo, G.S. Mtunda, K. Sichalwe, K. Kulembeka, H.P. Ndyetabura, I. Saleh, H. Kawuki, R.S. Alicai, Titus Adiga, G. Benesi, I.R.M. Mhone, A. Zacarias, A. Matsimbe, S.F. Munga, T. Ateka, E. Navangi, L. Maruthi, M.N. Mwatuni, F. Ngundo, G. Mwangangi, M. Mbugua, E. Ndunguru, J. Rajabu, C. Mark, D. Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa |
| title | Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa |
| title_full | Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa |
| title_fullStr | Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa |
| title_full_unstemmed | Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa |
| title_short | Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa |
| title_sort | exchanging and managing in vitro elite germplasm to combat cassava brown streak disease cbsd and cassava mosaic disease cmd in eastern and southern africa |
| topic | cassava exchange in vitro germplasm plant diseases cassava varieties african cassava mosaic virus cassava brown streak disease development food science |
| url | https://hdl.handle.net/10568/92970 |
| work_keys_str_mv | AT tumwegamiresilver exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT kanjue exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT leggjamesp exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT shirimar exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT kombos exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mkamilogs exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mtundak exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT sichalwek exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT kulembekahp exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT ndyetaburai exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT salehh exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT kawukirs exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT alicaititus exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT adigag exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT benesiirm exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mhonea exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT zacariasa exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT matsimbesf exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mungat exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT atekae exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT navangil exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT maruthimn exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mwatunif exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT ngundog exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mwangangim exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT mbuguae exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT ndunguruj exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT rajabuc exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica AT markd exchangingandmanaginginvitroelitegermplasmtocombatcassavabrownstreakdiseasecbsdandcassavamosaicdiseasecmdineasternandsouthernafrica |