Occurence and inheritance of 2n pollen in Musa
Sexual polyploidization explains the formation of most polyploid crop species and provides means for their genetic improvement. This paper reports the occurrence and inheritance of 2 n pollen in diploid and polyploid Musa . Pollen samples of male fertile accessions available in the field gene bank o...
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| Format: | Journal Article |
| Language: | Inglés |
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Oxford University Press
1997
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| Online Access: | https://hdl.handle.net/10568/95951 |
| _version_ | 1855521702324207616 |
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| author | Ortíz, R. |
| author_browse | Ortíz, R. |
| author_facet | Ortíz, R. |
| author_sort | Ortíz, R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Sexual polyploidization explains the formation of most polyploid crop species and provides means for their genetic improvement. This paper reports the occurrence and inheritance of 2 n pollen in diploid and polyploid Musa . Pollen samples of male fertile accessions available in the field gene bank of the International Institute of Tropical Agriculture were microscopically examined throughout a calendar year. Based on pollen diameter 2 n pollen producers were identified. The presence of 2 n pollen in diploid species suggests that unilateral sexual polyploidization (2 n×n ) could have been involved in the origin of triploid Musa species. Segregation data suggests that at least one dominant gene controls 2 n pollen production in Musa . Further introgression of desirable alleles from diploid species to polyploids could be achieved either through unilateral or bilateral (2 n×2n ) sexual polyploidization in Musa . |
| format | Journal Article |
| id | CGSpace95951 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1997 |
| publishDateRange | 1997 |
| publishDateSort | 1997 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace959512024-08-27T10:35:34Z Occurence and inheritance of 2n pollen in Musa Ortíz, R. musa musa hybrids gametes evolution ploidy manipulations sexual polyploidization Sexual polyploidization explains the formation of most polyploid crop species and provides means for their genetic improvement. This paper reports the occurrence and inheritance of 2 n pollen in diploid and polyploid Musa . Pollen samples of male fertile accessions available in the field gene bank of the International Institute of Tropical Agriculture were microscopically examined throughout a calendar year. Based on pollen diameter 2 n pollen producers were identified. The presence of 2 n pollen in diploid species suggests that unilateral sexual polyploidization (2 n×n ) could have been involved in the origin of triploid Musa species. Segregation data suggests that at least one dominant gene controls 2 n pollen production in Musa . Further introgression of desirable alleles from diploid species to polyploids could be achieved either through unilateral or bilateral (2 n×2n ) sexual polyploidization in Musa . 1997-04 2018-07-05T06:30:18Z 2018-07-05T06:30:18Z Journal Article https://hdl.handle.net/10568/95951 en Open Access Oxford University Press Ortiz, R. (1997). Occurrence and inheritance of 2n pollen in Musa. Annals of Botany, 79, 449-453. |
| spellingShingle | musa musa hybrids gametes evolution ploidy manipulations sexual polyploidization Ortíz, R. Occurence and inheritance of 2n pollen in Musa |
| title | Occurence and inheritance of 2n pollen in Musa |
| title_full | Occurence and inheritance of 2n pollen in Musa |
| title_fullStr | Occurence and inheritance of 2n pollen in Musa |
| title_full_unstemmed | Occurence and inheritance of 2n pollen in Musa |
| title_short | Occurence and inheritance of 2n pollen in Musa |
| title_sort | occurence and inheritance of 2n pollen in musa |
| topic | musa musa hybrids gametes evolution ploidy manipulations sexual polyploidization |
| url | https://hdl.handle.net/10568/95951 |
| work_keys_str_mv | AT ortizr occurenceandinheritanceof2npolleninmusa |