Spontaneous somatic tetraploids in cassava
One suspected mutant with the broad, thick and dark green leaves characteristic of tetraploid cassava was found from each of the cassava clones TMS 91934 and TMS 89/00037-17 planted out in the field. Cytological examination confirmed them as tetraploids with chromosomes number 2n=4x=72. The mutants...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
1992
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| Acceso en línea: | https://hdl.handle.net/10568/99901 |
| _version_ | 1855522785771651072 |
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| author | Hahn, S.K. Bai, V.K. Asiedu, Robert |
| author_browse | Asiedu, Robert Bai, V.K. Hahn, S.K. |
| author_facet | Hahn, S.K. Bai, V.K. Asiedu, Robert |
| author_sort | Hahn, S.K. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | One suspected mutant with the broad, thick and dark green leaves characteristic of tetraploid cassava was found from each of the cassava clones TMS 91934 and TMS 89/00037-17 planted out in the field. Cytological examination confirmed them as tetraploids with chromosomes number 2n=4x=72. The mutants seen to be derived from natural solid mutation of axillary or adventitious buds through somatic chromosomes doubling of the initial cells of the buds as a result of abnormal mitotic division. Somatic doubling seems to take place rather frequently in cassava compared to the other plant species. The tetraploid mutants inferior in vigour to their diploid mother clones but would be valuable as parents for improvement of cassava at tetraploid level as a complement to sexual polyploidization. |
| format | Journal Article |
| id | CGSpace99901 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1992 |
| publishDateRange | 1992 |
| publishDateSort | 1992 |
| record_format | dspace |
| spelling | CGSpace999012023-02-15T06:51:53Z Spontaneous somatic tetraploids in cassava Hahn, S.K. Bai, V.K. Asiedu, Robert cassava polyploidy chromosomes One suspected mutant with the broad, thick and dark green leaves characteristic of tetraploid cassava was found from each of the cassava clones TMS 91934 and TMS 89/00037-17 planted out in the field. Cytological examination confirmed them as tetraploids with chromosomes number 2n=4x=72. The mutants seen to be derived from natural solid mutation of axillary or adventitious buds through somatic chromosomes doubling of the initial cells of the buds as a result of abnormal mitotic division. Somatic doubling seems to take place rather frequently in cassava compared to the other plant species. The tetraploid mutants inferior in vigour to their diploid mother clones but would be valuable as parents for improvement of cassava at tetraploid level as a complement to sexual polyploidization. 1992 2019-03-03T05:53:54Z 2019-03-03T05:53:54Z Journal Article https://hdl.handle.net/10568/99901 en Limited Access Hahn, S.K., Bai, V.K. & Asiedu, R. (1992). Spontaneous somatic tetraploids in cassava. Japanese Journal of Breeding, 42(2), 303-308. |
| spellingShingle | cassava polyploidy chromosomes Hahn, S.K. Bai, V.K. Asiedu, Robert Spontaneous somatic tetraploids in cassava |
| title | Spontaneous somatic tetraploids in cassava |
| title_full | Spontaneous somatic tetraploids in cassava |
| title_fullStr | Spontaneous somatic tetraploids in cassava |
| title_full_unstemmed | Spontaneous somatic tetraploids in cassava |
| title_short | Spontaneous somatic tetraploids in cassava |
| title_sort | spontaneous somatic tetraploids in cassava |
| topic | cassava polyploidy chromosomes |
| url | https://hdl.handle.net/10568/99901 |
| work_keys_str_mv | AT hahnsk spontaneoussomatictetraploidsincassava AT baivk spontaneoussomatictetraploidsincassava AT asiedurobert spontaneoussomatictetraploidsincassava |