Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement
Wild species of Manihot are progenitors of cassava. They constitute valuable genetic reservoirs presenting genes that show new characters. Screening of these species showed some of them to have a notably high percentage of protein combined with a low percentage of hydrocyanic acid. Study of natural...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Genética
2000-03-01
|
| Series: | Genetics and Molecular Biology |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000100035 |
| _version_ | 1811324217172426752 |
|---|---|
| author | Nagib M.A. Nassar |
| author_facet | Nagib M.A. Nassar |
| author_sort | Nagib M.A. Nassar |
| collection | DOAJ |
| description | Wild species of Manihot are progenitors of cassava. They constitute valuable genetic reservoirs presenting genes that show new characters. Screening of these species showed some of them to have a notably high percentage of protein combined with a low percentage of hydrocyanic acid. Study of natural habitats revealed resistance to drought and excessive soil aluminum toxicity as well as adaptation to low temperature. Some of the hybrids obtained showed high root productivity and resistance to stem borers. Apomixis was discovered in the wild and transferred successfully to the cultivate species.<br>Espécies selvagens de Manihot dão origem à mandioca. Elas constituem valioso reservatório genético, com genes mostrando novos caracteres. O exame cuidadoso dessas espécies mostrou que algumas delas têm uma percentagem notavelmente alta de proteína combinada com uma porcentagem baixa de ácido cianídrico. O estudo dos habitats naturais revelou resistência à seca e à toxicidade por alumínio em excesso no solo, assim como adaptação a baixas temperaturas. Alguns dos híbridos obtidos mostraram alta produtividade da raiz e resistência a brocas do caule. A apomixia foi descoberta nas espécies selvagens e transferida com sucesso para as espécies cultivadas. |
| first_indexed | 2024-04-13T14:10:23Z |
| format | Article |
| id | doaj.art-e9109a56aae0485f8af376164961c866 |
| institution | Directory Open Access Journal |
| issn | 1415-4757 1678-4685 |
| language | English |
| last_indexed | 2024-04-13T14:10:23Z |
| publishDate | 2000-03-01 |
| publisher | Sociedade Brasileira de Genética |
| record_format | Article |
| series | Genetics and Molecular Biology |
| spelling | doaj.art-e9109a56aae0485f8af376164961c8662022-12-22T02:43:48ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852000-03-0123120121210.1590/S1415-47572000000100035Wild cassava, Manihot spp.: Biology and potentialities for genetic improvementNagib M.A. NassarWild species of Manihot are progenitors of cassava. They constitute valuable genetic reservoirs presenting genes that show new characters. Screening of these species showed some of them to have a notably high percentage of protein combined with a low percentage of hydrocyanic acid. Study of natural habitats revealed resistance to drought and excessive soil aluminum toxicity as well as adaptation to low temperature. Some of the hybrids obtained showed high root productivity and resistance to stem borers. Apomixis was discovered in the wild and transferred successfully to the cultivate species.<br>Espécies selvagens de Manihot dão origem à mandioca. Elas constituem valioso reservatório genético, com genes mostrando novos caracteres. O exame cuidadoso dessas espécies mostrou que algumas delas têm uma percentagem notavelmente alta de proteína combinada com uma porcentagem baixa de ácido cianídrico. O estudo dos habitats naturais revelou resistência à seca e à toxicidade por alumínio em excesso no solo, assim como adaptação a baixas temperaturas. Alguns dos híbridos obtidos mostraram alta produtividade da raiz e resistência a brocas do caule. A apomixia foi descoberta nas espécies selvagens e transferida com sucesso para as espécies cultivadas.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000100035 |
| spellingShingle | Nagib M.A. Nassar Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement Genetics and Molecular Biology |
| title | Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement |
| title_full | Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement |
| title_fullStr | Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement |
| title_full_unstemmed | Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement |
| title_short | Wild cassava, Manihot spp.: Biology and potentialities for genetic improvement |
| title_sort | wild cassava manihot spp biology and potentialities for genetic improvement |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000100035 |
| work_keys_str_mv | AT nagibmanassar wildcassavamanihotsppbiologyandpotentialitiesforgeneticimprovement |