Intermediate Inheritance with Disomic Tendency in Tetraploid Intergeneric Citrus x Poncirus Hybrids Enhances the Efficiency of Citrus Rootstock Breeding
| Autor: | Yann Froelicher, Leny Calvez, Pierre Mournet, Patrick Ollitrault, Saturnin Bruyère, Raphaël Morillon, Alexis Dereeper |
|---|---|
| Přispěvatelé: | Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Amélioration Génétique et Adaptation des Plantes méditerranéennes et Tropicales Corse - Antenne Corse (AGAP-Corse), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Feder Cavalbio project, Région Guadeloupe |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences
0106 biological sciences Citrus Hybridation intergénérique Poncirus trifoliata Biology 01 natural sciences F30 - Génétique et amélioration des plantes Loss of heterozygosity lcsh:Agriculture 03 medical and health sciences Meiosis single nucleotide polymorphism meiosis genetic map Tétraploïdie Citrus rootstock Porte greffe polyploidy 030304 developmental biology Synteny Hybrid 2. Zero hunger 0303 health sciences phytogénétique fungi lcsh:S food and beverages preferential chromosome pairing Amélioration des plantes Horticulture Ploidy Rootstock Agronomy and Crop Science Clementine 010606 plant biology & botany |
| Zdroj: | Agronomy Volume 10 Issue 12 Agronomy, Vol 10, Iss 1961, p 1961 (2020) Agronomy, MDPI, 2020, 10 (12), ⟨10.3390/agronomy10121961⟩ Agronomy (Basel) |
| ISSN: | 2073-4395 |
| DOI: | 10.3390/agronomy10121961 |
| Popis: | Rootstocks are crucial for the sustainability of the citrus industry worldwide. Diploid intergeneric Citrus x Poncirus hybrids have contributed considerably to citrus rootstock improvement and their tetraploid (doubled-diploid) forms are important resources for the creation of a new generation of tetraploid rootstocks. To optimize the efficiency of tetraploid rootstock breeding strategies, more knowledge is required on inheritance in the allotetraploid genitors. A set of 159 new SNP markers that fully distinguish Poncirus trifoliata (L.) Raf. from Citrus species was developed from polymorphisms mined in GBS data and used to establish a genetic map of tetraploid citrumelo (C. x paradisi Macfad. x P. trifoliata) and to analyze the meiotic behavior of tetraploid citrumelo and citrandarin (C. reticulata Blanco x P. trifoliata). The tetraploid citrumelo genetic map was highly syntenic and collinear with the clementine reference genome. The apparent intergeneric recombination rate was strongly limited by high preferential chromosome pairing, resulting in intermediate inheritance with disomic tendency. Such inheritance, also observed in tetraploid citrandarin, results in the transmission by the diploid gametes of a high rate of intergeneric heterozygosity. It is therefore expected that a large part of the genetic value selected in the original diploid intergeneric rootstock is transmitted to the tetraploid sexual progenies. |
| Databáze: | OpenAIRE |
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