Triploid seedless mandarin breeding in France : S02O02
Small citrus is an increasing component of the world citrus industry. New high quality, parthenocarpic, sterile mandarin varieties will play a pivotal role for its sustainable development. To produce seedless varieties, the CIRAD breeding program is focused on triploid hybrid selection. The first method to develop triploid progenies exploits 2n gametes that are naturally produced by diploid cultivars to obtain triploids in 2x X 2x crosses. The second method is based on interploid crossings (2x X 4x and 4x X 2x). For the last strategy the parental tetraploid gene pool has been diversified by selecting spontaneous tetraploids in apomictic cultivars, generating doubled diploids by colchicine treatments and production of allotetraploids by somatic hybridization. Several thousand triploid hybrids have been created by CIRAD using these strategies with the support of embryo rescue and ploidy evaluation by flow cytometry. This breeding program is supported by basic and methodological research performed in collaboration with IVIA (Spain), DAK (Morocco) and INRA (France) in the following topics: (1) citrus germplasm management and characterization, (2) studies of polyploidization mechanisms, tetraploid meiosis and its implications on the genetic and phenotypic structure of triploid progenies, and (3) studies of the implication of polyploidy on genomic and phenotypic expression. (Texte intégral)
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Subjects: | F30 - Génétique et amélioration des plantes, Citrus, http://aims.fao.org/aos/agrovoc/c_1637, http://aims.fao.org/aos/agrovoc/c_3081, |
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dig-cirad-fr-5672752022-08-03T16:02:50Z http://agritrop.cirad.fr/567275/ http://agritrop.cirad.fr/567275/ Triploid seedless mandarin breeding in France : S02O02. Froelicher Yann, Bouffin Jean, Dambier Dominique, Ollitrault Patrick. 2012. In : XII International Citrus Congress : Book of abstract. Navarro Luis (ed.). ISC, IVIA, Fundación agroalimed. Riverside : ISC, Résumé, 37. International Citrus congress "Citrus and health. 12, Valence, Espagne, 18 Novembre 2012/23 Novembre 2012.http://riegos.ivia.es/citrusco/www.citruscongress2012.org/web/wp-content/uploads/downloads/2012/11/LIBRO-CONGRESO-CITRUS.pdf <http://riegos.ivia.es/citrusco/www.citruscongress2012.org/web/wp-content/uploads/downloads/2012/11/LIBRO-CONGRESO-CITRUS.pdf> Researchers Triploid seedless mandarin breeding in France : S02O02 Froelicher, Yann Bouffin, Jean Dambier, Dominique Ollitrault, Patrick eng 2012 ISC XII International Citrus Congress : Book of abstract F30 - Génétique et amélioration des plantes Citrus http://aims.fao.org/aos/agrovoc/c_1637 France http://aims.fao.org/aos/agrovoc/c_3081 Small citrus is an increasing component of the world citrus industry. New high quality, parthenocarpic, sterile mandarin varieties will play a pivotal role for its sustainable development. To produce seedless varieties, the CIRAD breeding program is focused on triploid hybrid selection. The first method to develop triploid progenies exploits 2n gametes that are naturally produced by diploid cultivars to obtain triploids in 2x X 2x crosses. The second method is based on interploid crossings (2x X 4x and 4x X 2x). For the last strategy the parental tetraploid gene pool has been diversified by selecting spontaneous tetraploids in apomictic cultivars, generating doubled diploids by colchicine treatments and production of allotetraploids by somatic hybridization. Several thousand triploid hybrids have been created by CIRAD using these strategies with the support of embryo rescue and ploidy evaluation by flow cytometry. This breeding program is supported by basic and methodological research performed in collaboration with IVIA (Spain), DAK (Morocco) and INRA (France) in the following topics: (1) citrus germplasm management and characterization, (2) studies of polyploidization mechanisms, tetraploid meiosis and its implications on the genetic and phenotypic structure of triploid progenies, and (3) studies of the implication of polyploidy on genomic and phenotypic expression. (Texte intégral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/567275/1/document_567275.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://riegos.ivia.es/citrusco/www.citruscongress2012.org/web/wp-content/uploads/downloads/2012/11/LIBRO-CONGRESO-CITRUS.pdf http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=215463 info:eu-repo/semantics/altIdentifier/purl/http://riegos.ivia.es/citrusco/www.citruscongress2012.org/web/wp-content/uploads/downloads/2012/11/LIBRO-CONGRESO-CITRUS.pdf |
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F30 - Génétique et amélioration des plantes Citrus http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_3081 F30 - Génétique et amélioration des plantes Citrus http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_3081 |
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F30 - Génétique et amélioration des plantes Citrus http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_3081 F30 - Génétique et amélioration des plantes Citrus http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_3081 Froelicher, Yann Bouffin, Jean Dambier, Dominique Ollitrault, Patrick Triploid seedless mandarin breeding in France : S02O02 |
description |
Small citrus is an increasing component of the world citrus industry. New high quality, parthenocarpic, sterile mandarin varieties will play a pivotal role for its sustainable development. To produce seedless varieties, the CIRAD breeding program is focused on triploid hybrid selection. The first method to develop triploid progenies exploits 2n gametes that are naturally produced by diploid cultivars to obtain triploids in 2x X 2x crosses. The second method is based on interploid crossings (2x X 4x and 4x X 2x). For the last strategy the parental tetraploid gene pool has been diversified by selecting spontaneous tetraploids in apomictic cultivars, generating doubled diploids by colchicine treatments and production of allotetraploids by somatic hybridization. Several thousand triploid hybrids have been created by CIRAD using these strategies with the support of embryo rescue and ploidy evaluation by flow cytometry. This breeding program is supported by basic and methodological research performed in collaboration with IVIA (Spain), DAK (Morocco) and INRA (France) in the following topics: (1) citrus germplasm management and characterization, (2) studies of polyploidization mechanisms, tetraploid meiosis and its implications on the genetic and phenotypic structure of triploid progenies, and (3) studies of the implication of polyploidy on genomic and phenotypic expression. (Texte intégral) |
format |
conference_item |
topic_facet |
F30 - Génétique et amélioration des plantes Citrus http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Froelicher, Yann Bouffin, Jean Dambier, Dominique Ollitrault, Patrick |
author_facet |
Froelicher, Yann Bouffin, Jean Dambier, Dominique Ollitrault, Patrick |
author_sort |
Froelicher, Yann |
title |
Triploid seedless mandarin breeding in France : S02O02 |
title_short |
Triploid seedless mandarin breeding in France : S02O02 |
title_full |
Triploid seedless mandarin breeding in France : S02O02 |
title_fullStr |
Triploid seedless mandarin breeding in France : S02O02 |
title_full_unstemmed |
Triploid seedless mandarin breeding in France : S02O02 |
title_sort |
triploid seedless mandarin breeding in france : s02o02 |
publisher |
ISC |
url |
http://agritrop.cirad.fr/567275/ http://agritrop.cirad.fr/567275/1/document_567275.pdf |
work_keys_str_mv |
AT froelicheryann triploidseedlessmandarinbreedinginfrances02o02 AT bouffinjean triploidseedlessmandarinbreedinginfrances02o02 AT dambierdominique triploidseedlessmandarinbreedinginfrances02o02 AT ollitraultpatrick triploidseedlessmandarinbreedinginfrances02o02 |
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1758023563892228096 |