Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization
The tomatillo, Physalis ixocarpa Brot. (2n = 2x = 24), is an important crop in Mexico, and it is becoming appreciated in other countries. Polyploidy induction is expected to increase its breeding potential. The objective of this work was to develop and characterize tomatillo autotetraploids through...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Japanese Society of Breeding
2011
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| Online Access: | http://eprints.uanl.mx/15058/1/680.pdf |
| _version_ | 1824414241857208320 |
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| author | Robledo Torres, Valentín Ramírez Godina, Francisca Foroughbakhch Pournavab, Rahim Benavides Mendoza, Adalberto Hernández Guzmán, Gustavo Reyes Valdés, M. Humberto |
| author_facet | Robledo Torres, Valentín Ramírez Godina, Francisca Foroughbakhch Pournavab, Rahim Benavides Mendoza, Adalberto Hernández Guzmán, Gustavo Reyes Valdés, M. Humberto |
| author_sort | Robledo Torres, Valentín |
| collection | Repositorio Institucional |
| description | The tomatillo, Physalis ixocarpa Brot. (2n = 2x = 24), is an important crop in Mexico, and it is becoming appreciated in other countries. Polyploidy induction is expected to increase its breeding potential. The objective of this work was to develop and characterize tomatillo autotetraploids through colchicine-based induction. Young seedlings of the Rendidora cultivar were treated for 24 h with colchicine in concentrations ranging from 0.04% to 0.20%, and ploidy levels were tested by cytological and flow cytometry techniques. Autotetraploidy was induced with colchicine concentrations of 0.12% and 0.16%, with success rates of 67% and 65%, respectively. Presence of univalents, bivalents and multivalents was observed in prophase I and metaphase I. The basic genome size was not altered in the third generation progeny from treated plants. Autotetraploid plants were fertile and productive, but their pollen development was lower than their diploid counterpart. The polyploid plants showed higher values for life cycle length, plant height, fruit weight and equatorial diameter, fruits per plant, and soluble solid concentration. This is the first report of an autopolyploid cultivated tomatillo. Its genome duplication is readily induced with production of fertile plants, and may be valuable to introduce genetic plasticity in this crop. |
| format | Article |
| id | eprints-15058 |
| institution | UANL |
| language | English |
| publishDate | 2011 |
| publisher | Japanese Society of Breeding |
| record_format | eprints |
| spelling | eprints-150582021-08-27T20:34:34Z http://eprints.uanl.mx/15058/ Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization Robledo Torres, Valentín Ramírez Godina, Francisca Foroughbakhch Pournavab, Rahim Benavides Mendoza, Adalberto Hernández Guzmán, Gustavo Reyes Valdés, M. Humberto QH Historia Natural, Biología QK Botánica SB Cultivo de plantas The tomatillo, Physalis ixocarpa Brot. (2n = 2x = 24), is an important crop in Mexico, and it is becoming appreciated in other countries. Polyploidy induction is expected to increase its breeding potential. The objective of this work was to develop and characterize tomatillo autotetraploids through colchicine-based induction. Young seedlings of the Rendidora cultivar were treated for 24 h with colchicine in concentrations ranging from 0.04% to 0.20%, and ploidy levels were tested by cytological and flow cytometry techniques. Autotetraploidy was induced with colchicine concentrations of 0.12% and 0.16%, with success rates of 67% and 65%, respectively. Presence of univalents, bivalents and multivalents was observed in prophase I and metaphase I. The basic genome size was not altered in the third generation progeny from treated plants. Autotetraploid plants were fertile and productive, but their pollen development was lower than their diploid counterpart. The polyploid plants showed higher values for life cycle length, plant height, fruit weight and equatorial diameter, fruits per plant, and soluble solid concentration. This is the first report of an autopolyploid cultivated tomatillo. Its genome duplication is readily induced with production of fertile plants, and may be valuable to introduce genetic plasticity in this crop. Japanese Society of Breeding 2011 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/15058/1/680.pdf http://eprints.uanl.mx/15058/1.haspreviewThumbnailVersion/680.pdf Robledo Torres, Valentín y Ramírez Godina, Francisca y Foroughbakhch Pournavab, Rahim y Benavides Mendoza, Adalberto y Hernández Guzmán, Gustavo y Reyes Valdés, M. Humberto (2011) Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization. Breeding science, 61 (3). pp. 288-293. ISSN 1344-7610 http://doi.org/10.1270/jsbbs.61.288 doi:10.1270/jsbbs.61.288 |
| spellingShingle | QH Historia Natural, Biología QK Botánica SB Cultivo de plantas Robledo Torres, Valentín Ramírez Godina, Francisca Foroughbakhch Pournavab, Rahim Benavides Mendoza, Adalberto Hernández Guzmán, Gustavo Reyes Valdés, M. Humberto Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization |
| title_full | Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization |
| title_fullStr | Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization |
| title_full_unstemmed | Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization |
| title_short | Development of tomatillo (Physalis ixocarpa Brot.) autotetraploids and their chromosome and phenotypic characterization |
| title_sort | development of tomatillo physalis ixocarpa brot autotetraploids and their chromosome and phenotypic characterization |
| topic | QH Historia Natural, Biología QK Botánica SB Cultivo de plantas |
| url | http://eprints.uanl.mx/15058/1/680.pdf |
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