Ploidy manipulation for citrus breeding, Genetics, and genomics
Polyploidy appears to have played a limited role in citrus germplasm evolution. However, today, ploidy manipulation is an important component of citrus breeding strategies. For varieties, the main objective is to develop triploid seedless cultivars. For rootstock, the aim is to cumulate interesting...
| Autores principales: | , , , , , , , |
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| Formato: | bookPart |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/6977 https://link.springer.com/chapter/10.1007/978-3-030-15308-3_6 |
| _version_ | 1855032524364840960 |
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| author | Ollitrault, Patrick Germana, Maria Antonietta Froelicher, Yann Cuenca, José Aleza, Pablo Morillon, Raphael Grosser, J. D. Guo, Wenwu |
| author2 | Gentile, Alessandra |
| author_browse | Aleza, Pablo Cuenca, José Froelicher, Yann Gentile, Alessandra Germana, Maria Antonietta Grosser, J. D. Guo, Wenwu Morillon, Raphael Ollitrault, Patrick |
| author_facet | Gentile, Alessandra Ollitrault, Patrick Germana, Maria Antonietta Froelicher, Yann Cuenca, José Aleza, Pablo Morillon, Raphael Grosser, J. D. Guo, Wenwu |
| author_sort | Ollitrault, Patrick |
| collection | ReDivia |
| description | Polyploidy appears to have played a limited role in citrus germplasm evolution. However, today, ploidy manipulation is an important component of citrus breeding strategies. For varieties, the main objective is to develop triploid seedless cultivars. For rootstock, the aim is to cumulate interesting traits in tetraploid hybrids and to improve adaptation to biotic and abiotic stresses. This chapter starts with a review of the recent knowledge acquired on the natural mechanisms of citrus polyploidization and tetraploid meiosis. Chromosome doubling of nucellar cells is frequent in apomictic citrus and results in tetraploid seedling production. Unreduced gametes are also frequently produced, mainly by second division restitution for ovules. First division restitution was described for pollen as well as alternative mechanisms for both ovules and pollen. Tetraploid plants display tetrasomic to disomic segregations in relation to their genome structure (autotetraploid versus allotetraploid) and the divergence of the parental species. The implications of the origin of diploid gametes, on the genetic diversity of polyploid progenies, are discussed. The biotechnological tools (haplomethods, chromosome doubling by chemical treatments, somatic hybridization, and cytogenetic/molecular tools for polyploid genome studies) used to optimize ploidy manipulation are presented. The interest of haploid and polyploid genotypes for basic genetic and genomic studies is discussed. The research areas reviewed are as follows: haploids and doubled haploids for genome sequencing and haplotyping, centromere mapping from unreduced gametes, marker–trait association study in polyploids, and phenome and gene expression in polyploids with a special focus on polyploidy and adaptation. Finally, we give an overview of the recent advances of concrete polyploid citrus breeding programs in China, Florida, and the Mediterranean Basin. |
| format | bookPart |
| id | ReDivia6977 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | ReDivia69772025-04-25T14:50:21Z Ploidy manipulation for citrus breeding, Genetics, and genomics Ollitrault, Patrick Germana, Maria Antonietta Froelicher, Yann Cuenca, José Aleza, Pablo Morillon, Raphael Grosser, J. D. Guo, Wenwu Gentile, Alessandra Triploid Doubled haploid 2n gametes F30 Plant genetics and breeding F02 Plant propagation Tetraploids Haploids Meiosis Polyploidy appears to have played a limited role in citrus germplasm evolution. However, today, ploidy manipulation is an important component of citrus breeding strategies. For varieties, the main objective is to develop triploid seedless cultivars. For rootstock, the aim is to cumulate interesting traits in tetraploid hybrids and to improve adaptation to biotic and abiotic stresses. This chapter starts with a review of the recent knowledge acquired on the natural mechanisms of citrus polyploidization and tetraploid meiosis. Chromosome doubling of nucellar cells is frequent in apomictic citrus and results in tetraploid seedling production. Unreduced gametes are also frequently produced, mainly by second division restitution for ovules. First division restitution was described for pollen as well as alternative mechanisms for both ovules and pollen. Tetraploid plants display tetrasomic to disomic segregations in relation to their genome structure (autotetraploid versus allotetraploid) and the divergence of the parental species. The implications of the origin of diploid gametes, on the genetic diversity of polyploid progenies, are discussed. The biotechnological tools (haplomethods, chromosome doubling by chemical treatments, somatic hybridization, and cytogenetic/molecular tools for polyploid genome studies) used to optimize ploidy manipulation are presented. The interest of haploid and polyploid genotypes for basic genetic and genomic studies is discussed. The research areas reviewed are as follows: haploids and doubled haploids for genome sequencing and haplotyping, centromere mapping from unreduced gametes, marker–trait association study in polyploids, and phenome and gene expression in polyploids with a special focus on polyploidy and adaptation. Finally, we give an overview of the recent advances of concrete polyploid citrus breeding programs in China, Florida, and the Mediterranean Basin. 2021-01-18T09:50:39Z 2021-01-18T09:50:39Z 2020 bookPart Ollitrault, P., Germana, M. A., Froelicher, Y., Cuenca, J., Aleza, P., Morillon, R. et al. (2020) Ploidy Manipulation for Citrus Breeding, Genetics, and Genomics. In: The Citrus genome. Compendium of Plant Genomes. (pp 75-105). Springer. 978-3-030-10799-4 978-3-030-15308-3 (eBook) http://hdl.handle.net/20.500.11939/6977 10.1007/978-3-030-15308-3_6 https://link.springer.com/chapter/10.1007/978-3-030-15308-3_6 en The citrus genome Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ closedAccess Springer electronico |
| spellingShingle | Triploid Doubled haploid 2n gametes F30 Plant genetics and breeding F02 Plant propagation Tetraploids Haploids Meiosis Ollitrault, Patrick Germana, Maria Antonietta Froelicher, Yann Cuenca, José Aleza, Pablo Morillon, Raphael Grosser, J. D. Guo, Wenwu Ploidy manipulation for citrus breeding, Genetics, and genomics |
| title | Ploidy manipulation for citrus breeding, Genetics, and genomics |
| title_full | Ploidy manipulation for citrus breeding, Genetics, and genomics |
| title_fullStr | Ploidy manipulation for citrus breeding, Genetics, and genomics |
| title_full_unstemmed | Ploidy manipulation for citrus breeding, Genetics, and genomics |
| title_short | Ploidy manipulation for citrus breeding, Genetics, and genomics |
| title_sort | ploidy manipulation for citrus breeding genetics and genomics |
| topic | Triploid Doubled haploid 2n gametes F30 Plant genetics and breeding F02 Plant propagation Tetraploids Haploids Meiosis |
| url | http://hdl.handle.net/20.500.11939/6977 https://link.springer.com/chapter/10.1007/978-3-030-15308-3_6 |
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