Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine
Triploid breeding is developed worldwide to create new seedless cultivars. Citrus triploid hybrids can be recovered from 2x × 2x sexual hybridizations as a consequence of the formation of unreduced gametes (2n), or from 4x × 2x interploid hybridizations in which tetraploid parents used are most often doubled-diploid (DD). Here we have analyzed the inheritance in doubled-diploid clementine and compared the genetic structures of gametes of DD clementine with SDR unreduced gametes of diploid clementine. Parental heterozygosity restitution (PHR) with DD parents depends on the rate of preferential chromosome pairing and thus the proportion of disomic versus tetrasomic segregations. Doubled-diploid clementine largely exhibited tetrasomic segregation. However, three linkage groups had intermediate segregation and one had a tendency for disomy. Significant doubled reduction rates (DR) rates were observed in six of the nine LGs. Differences of PHR between 2n SDR and 2x DD gametes were highest in the centromeric region and progressively decreased toward the distal regions where they were not significant. Over all markers, PHR was lower (two-thirds) in SDR 2n gametes than in DD-derived diploid gametes. The two strategies appear complementary in terms of genotypic variability. Interploid 4x × 2x hybridization is potentially more efficient for developing new cultivars that are phenotypically closer to the diploid parent of the DD than sexual hybridization through SDR 2n gametes. Conversely, 2x × 2x triploidisation has the potential to produce novel products with characteristics for market segmentation strategies.
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dig-cirad-fr-5804872024-01-28T23:29:06Z http://agritrop.cirad.fr/580487/ http://agritrop.cirad.fr/580487/ Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine. Aleza Pablo, Cuenca José, Juarez José, Navarro Luis, Ollitrault Patrick. 2016. Plant Cell Reports, 35 (8) : 1573-1586.https://doi.org/10.1007/s00299-016-1972-4 <https://doi.org/10.1007/s00299-016-1972-4> Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine Aleza, Pablo Cuenca, José Juarez, José Navarro, Luis Ollitrault, Patrick eng 2016 Plant Cell Reports F30 - Génétique et amélioration des plantes U30 - Méthodes de recherche F60 - Physiologie et biochimie végétale F63 - Physiologie végétale - Reproduction U10 - Informatique, mathématiques et statistiques Citrus Citrus reticulata Citrus sinensis hybridation interspécifique triploïdie diploïdie héritabilité marqueur génétique méiose gamète génotype ségrégation génétique des populations variation génétique amélioration des plantes http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_1646 http://aims.fao.org/aos/agrovoc/c_1647 http://aims.fao.org/aos/agrovoc/c_26794 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4706 http://aims.fao.org/aos/agrovoc/c_3185 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_6947 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5956 Triploid breeding is developed worldwide to create new seedless cultivars. Citrus triploid hybrids can be recovered from 2x × 2x sexual hybridizations as a consequence of the formation of unreduced gametes (2n), or from 4x × 2x interploid hybridizations in which tetraploid parents used are most often doubled-diploid (DD). Here we have analyzed the inheritance in doubled-diploid clementine and compared the genetic structures of gametes of DD clementine with SDR unreduced gametes of diploid clementine. Parental heterozygosity restitution (PHR) with DD parents depends on the rate of preferential chromosome pairing and thus the proportion of disomic versus tetrasomic segregations. Doubled-diploid clementine largely exhibited tetrasomic segregation. However, three linkage groups had intermediate segregation and one had a tendency for disomy. Significant doubled reduction rates (DR) rates were observed in six of the nine LGs. Differences of PHR between 2n SDR and 2x DD gametes were highest in the centromeric region and progressively decreased toward the distal regions where they were not significant. Over all markers, PHR was lower (two-thirds) in SDR 2n gametes than in DD-derived diploid gametes. The two strategies appear complementary in terms of genotypic variability. Interploid 4x × 2x hybridization is potentially more efficient for developing new cultivars that are phenotypically closer to the diploid parent of the DD than sexual hybridization through SDR 2n gametes. Conversely, 2x × 2x triploidisation has the potential to produce novel products with characteristics for market segmentation strategies. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/580487/7/art_10.1007_s00299-016-1972-4.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s00299-016-1972-4 10.1007/s00299-016-1972-4 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00299-016-1972-4 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s00299-016-1972-4 |
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F30 - Génétique et amélioration des plantes U30 - Méthodes de recherche F60 - Physiologie et biochimie végétale F63 - Physiologie végétale - Reproduction U10 - Informatique, mathématiques et statistiques Citrus Citrus reticulata Citrus sinensis hybridation interspécifique triploïdie diploïdie héritabilité marqueur génétique méiose gamète génotype ségrégation génétique des populations variation génétique amélioration des plantes http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_1646 http://aims.fao.org/aos/agrovoc/c_1647 http://aims.fao.org/aos/agrovoc/c_26794 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4706 http://aims.fao.org/aos/agrovoc/c_3185 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_6947 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5956 F30 - Génétique et amélioration des plantes U30 - Méthodes de recherche F60 - Physiologie et biochimie végétale F63 - Physiologie végétale - Reproduction U10 - Informatique, mathématiques et statistiques Citrus Citrus reticulata Citrus sinensis hybridation interspécifique triploïdie diploïdie héritabilité marqueur génétique méiose gamète génotype ségrégation génétique des populations variation génétique amélioration des plantes http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_1646 http://aims.fao.org/aos/agrovoc/c_1647 http://aims.fao.org/aos/agrovoc/c_26794 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4706 http://aims.fao.org/aos/agrovoc/c_3185 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_6947 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5956 |
spellingShingle |
F30 - Génétique et amélioration des plantes U30 - Méthodes de recherche F60 - Physiologie et biochimie végétale F63 - Physiologie végétale - Reproduction U10 - Informatique, mathématiques et statistiques Citrus Citrus reticulata Citrus sinensis hybridation interspécifique triploïdie diploïdie héritabilité marqueur génétique méiose gamète génotype ségrégation génétique des populations variation génétique amélioration des plantes http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_1646 http://aims.fao.org/aos/agrovoc/c_1647 http://aims.fao.org/aos/agrovoc/c_26794 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4706 http://aims.fao.org/aos/agrovoc/c_3185 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_6947 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5956 F30 - Génétique et amélioration des plantes U30 - Méthodes de recherche F60 - Physiologie et biochimie végétale F63 - Physiologie végétale - Reproduction U10 - Informatique, mathématiques et statistiques Citrus Citrus reticulata Citrus sinensis hybridation interspécifique triploïdie diploïdie héritabilité marqueur génétique méiose gamète génotype ségrégation génétique des populations variation génétique amélioration des plantes http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_1646 http://aims.fao.org/aos/agrovoc/c_1647 http://aims.fao.org/aos/agrovoc/c_26794 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4706 http://aims.fao.org/aos/agrovoc/c_3185 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_6947 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5956 Aleza, Pablo Cuenca, José Juarez, José Navarro, Luis Ollitrault, Patrick Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine |
description |
Triploid breeding is developed worldwide to create new seedless cultivars. Citrus triploid hybrids can be recovered from 2x × 2x sexual hybridizations as a consequence of the formation of unreduced gametes (2n), or from 4x × 2x interploid hybridizations in which tetraploid parents used are most often doubled-diploid (DD). Here we have analyzed the inheritance in doubled-diploid clementine and compared the genetic structures of gametes of DD clementine with SDR unreduced gametes of diploid clementine. Parental heterozygosity restitution (PHR) with DD parents depends on the rate of preferential chromosome pairing and thus the proportion of disomic versus tetrasomic segregations. Doubled-diploid clementine largely exhibited tetrasomic segregation. However, three linkage groups had intermediate segregation and one had a tendency for disomy. Significant doubled reduction rates (DR) rates were observed in six of the nine LGs. Differences of PHR between 2n SDR and 2x DD gametes were highest in the centromeric region and progressively decreased toward the distal regions where they were not significant. Over all markers, PHR was lower (two-thirds) in SDR 2n gametes than in DD-derived diploid gametes. The two strategies appear complementary in terms of genotypic variability. Interploid 4x × 2x hybridization is potentially more efficient for developing new cultivars that are phenotypically closer to the diploid parent of the DD than sexual hybridization through SDR 2n gametes. Conversely, 2x × 2x triploidisation has the potential to produce novel products with characteristics for market segmentation strategies. |
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article |
topic_facet |
F30 - Génétique et amélioration des plantes U30 - Méthodes de recherche F60 - Physiologie et biochimie végétale F63 - Physiologie végétale - Reproduction U10 - Informatique, mathématiques et statistiques Citrus Citrus reticulata Citrus sinensis hybridation interspécifique triploïdie diploïdie héritabilité marqueur génétique méiose gamète génotype ségrégation génétique des populations variation génétique amélioration des plantes http://aims.fao.org/aos/agrovoc/c_1637 http://aims.fao.org/aos/agrovoc/c_1646 http://aims.fao.org/aos/agrovoc/c_1647 http://aims.fao.org/aos/agrovoc/c_26794 http://aims.fao.org/aos/agrovoc/c_7939 http://aims.fao.org/aos/agrovoc/c_2313 http://aims.fao.org/aos/agrovoc/c_3570 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4706 http://aims.fao.org/aos/agrovoc/c_3185 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_6947 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5956 |
author |
Aleza, Pablo Cuenca, José Juarez, José Navarro, Luis Ollitrault, Patrick |
author_facet |
Aleza, Pablo Cuenca, José Juarez, José Navarro, Luis Ollitrault, Patrick |
author_sort |
Aleza, Pablo |
title |
Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine |
title_short |
Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine |
title_full |
Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine |
title_fullStr |
Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine |
title_full_unstemmed |
Inheritance in doubled-diploid clementine and comparative study with SDR unreduced gametes of diploid clementine |
title_sort |
inheritance in doubled-diploid clementine and comparative study with sdr unreduced gametes of diploid clementine |
url |
http://agritrop.cirad.fr/580487/ http://agritrop.cirad.fr/580487/7/art_10.1007_s00299-016-1972-4.pdf |
work_keys_str_mv |
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