Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure

Citrus polyploidy is associated with a wide range of morphological, genetic, and physiological changes that are often advantageous for breeding. Citrus triploid hybrids are very interesting as new seedless varieties. However, tetraploid rootstocks promote adaptation to different abiotic stresses and...

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Autores principales: Aleza, Pablo, Garavello, Miguel, Rouiss, Houssem, Benedict, Ana Cristina, García-Lor, Andrés, Hernández, María, Navarro, Luis, Ollitrault, Patrick
Formato: article
Lenguaje:Inglés
Publicado: Frontiers Media 2024
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Acceso en línea:https://hdl.handle.net/20.500.11939/8773
https://www.frontiersin.org/articles/10.3389/fpls.2023.1327872/full
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author Aleza, Pablo
Garavello, Miguel
Rouiss, Houssem
Benedict, Ana Cristina
García-Lor, Andrés
Hernández, María
Navarro, Luis
Ollitrault, Patrick
author_browse Aleza, Pablo
Benedict, Ana Cristina
Garavello, Miguel
García-Lor, Andrés
Hernández, María
Navarro, Luis
Ollitrault, Patrick
Rouiss, Houssem
author_facet Aleza, Pablo
Garavello, Miguel
Rouiss, Houssem
Benedict, Ana Cristina
García-Lor, Andrés
Hernández, María
Navarro, Luis
Ollitrault, Patrick
author_sort Aleza, Pablo
collection ReDivia
description Citrus polyploidy is associated with a wide range of morphological, genetic, and physiological changes that are often advantageous for breeding. Citrus triploid hybrids are very interesting as new seedless varieties. However, tetraploid rootstocks promote adaptation to different abiotic stresses and promote resilience. Triploid and tetraploid hybrids can be obtained through sexual hybridizations using tetraploid parents (2x × 4x, 4x × 2x, or 4x × 4x), but more knowledge is needed about the inheritance pattern of tetraploid parents to optimize the efficiency of triploid varieties and tetraploid rootstock breeding strategies. In this work, we have analyzed the inheritance pattern of three tetraploid genotypes: ‘Chandler’ pummelo (Citrus maxima) and ‘Cleopatra’ mandarin (Citrus reticulata), which represent two clear examples of autotetraploid plants constituted by the genome of a single species, and the ‘Sevillano’ sour orange, which is an allotetraploid interspecific hybrid between C. maxima and C. reticulata. Polymorphic simple sequence repeat (SSR) and single-nucleotide polymorphism (SNP) markers were used to estimate parental heterozygosity restitution, and allele frequencies for centromeric loci were used to calculate the preferential pairing rate related to the proportion of disomic and tetrasomic segregation. The tetraploid pummelo and mandarin displayed tetrasomic segregation. Sour orange evidenced a clear intermediate inheritance for five of the nine chromosomes (1, 2, 5, 7, and 8), a slight tendency toward tetrasomic inheritance on chromosome 3, and intermediate inheritance with a tendency toward disomy for chromosomes 4, 6, and 9. These results indicate that the interspecific versus intraspecific phylogenomic origin affects preferential pairing and, therefore, the inheritance patterns. Despite its high level of heterozygosity, the important preferential chromosome pairing observed in sour orange results in a limited diversity of the genotypic variability of its diploid gametes, and consequently, a large part of the genetic value of the original diploid sour orange is transferred to the tetraploid progenies.
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spelling ReDivia87732025-04-25T14:49:27Z Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure Aleza, Pablo Garavello, Miguel Rouiss, Houssem Benedict, Ana Cristina García-Lor, Andrés Hernández, María Navarro, Luis Ollitrault, Patrick Triploid Tetrasomic Disomic SSR and SNP markers F30 Plant genetics and breeding F60 Plant physiology and biochemistry F63 Plant physiology - Reproduction Q01 Food science and technology Citrus Seedless varieties Rootstocks Breeding Citrus polyploidy is associated with a wide range of morphological, genetic, and physiological changes that are often advantageous for breeding. Citrus triploid hybrids are very interesting as new seedless varieties. However, tetraploid rootstocks promote adaptation to different abiotic stresses and promote resilience. Triploid and tetraploid hybrids can be obtained through sexual hybridizations using tetraploid parents (2x × 4x, 4x × 2x, or 4x × 4x), but more knowledge is needed about the inheritance pattern of tetraploid parents to optimize the efficiency of triploid varieties and tetraploid rootstock breeding strategies. In this work, we have analyzed the inheritance pattern of three tetraploid genotypes: ‘Chandler’ pummelo (Citrus maxima) and ‘Cleopatra’ mandarin (Citrus reticulata), which represent two clear examples of autotetraploid plants constituted by the genome of a single species, and the ‘Sevillano’ sour orange, which is an allotetraploid interspecific hybrid between C. maxima and C. reticulata. Polymorphic simple sequence repeat (SSR) and single-nucleotide polymorphism (SNP) markers were used to estimate parental heterozygosity restitution, and allele frequencies for centromeric loci were used to calculate the preferential pairing rate related to the proportion of disomic and tetrasomic segregation. The tetraploid pummelo and mandarin displayed tetrasomic segregation. Sour orange evidenced a clear intermediate inheritance for five of the nine chromosomes (1, 2, 5, 7, and 8), a slight tendency toward tetrasomic inheritance on chromosome 3, and intermediate inheritance with a tendency toward disomy for chromosomes 4, 6, and 9. These results indicate that the interspecific versus intraspecific phylogenomic origin affects preferential pairing and, therefore, the inheritance patterns. Despite its high level of heterozygosity, the important preferential chromosome pairing observed in sour orange results in a limited diversity of the genotypic variability of its diploid gametes, and consequently, a large part of the genetic value of the original diploid sour orange is transferred to the tetraploid progenies. 2024-01-18T08:41:56Z 2024-01-18T08:41:56Z 2023 article publishedVersion Aleza, P., Garavello, M., Rouiss, H., Benedict, A. C., Garcia-Lor, A., Hernandez, M. ... & Ollitrault, P. (2023). Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure. Frontiers in Plant Science, 14, 1327872. 1664-462X https://hdl.handle.net/20.500.11939/8773 10.3389/fpls.2023.1327872 https://www.frontiersin.org/articles/10.3389/fpls.2023.1327872/full en This research was supported by project PID2021-128115OR-I00, funded by the Ministry of Science and Innovation, MCIN/AEI/10.13039/ 501100011033/FEDER, UE and for the project IVIA-GVA 52201 AgroAlimVal. from Instituto Valenciano de Investigaciones Agrarias (this project is subject to being co-financed by the European Union through the ERDF Program 2021-2027 Comunitat Valenciana). info:eu-repo/grantAgreement/ERDF/PCV 2021-2027/52201/ES/Relanzando la agroalimentación valenciana para una producción y consumo sostenibles y seguros/AgroAlimVal info:eu-repo/grantAgreement/AEI/Programa Estatal de Generación de Conocimiento y Fortalecimiento Científico y Tecnológico del Sistema de I+D+i/PID2021-128115OR-I00 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ openAccess Frontiers Media electronico
spellingShingle Triploid
Tetrasomic
Disomic
SSR and SNP markers
F30 Plant genetics and breeding
F60 Plant physiology and biochemistry
F63 Plant physiology - Reproduction
Q01 Food science and technology
Citrus
Seedless varieties
Rootstocks
Breeding
Aleza, Pablo
Garavello, Miguel
Rouiss, Houssem
Benedict, Ana Cristina
García-Lor, Andrés
Hernández, María
Navarro, Luis
Ollitrault, Patrick
Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
title Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
title_full Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
title_fullStr Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
title_full_unstemmed Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
title_short Inheritance pattern of tetraploids pummelo, mandarin, and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
title_sort inheritance pattern of tetraploids pummelo mandarin and their interspecific hybrid sour orange is highly influenced by their phylogenomic structure
topic Triploid
Tetrasomic
Disomic
SSR and SNP markers
F30 Plant genetics and breeding
F60 Plant physiology and biochemistry
F63 Plant physiology - Reproduction
Q01 Food science and technology
Citrus
Seedless varieties
Rootstocks
Breeding
url https://hdl.handle.net/20.500.11939/8773
https://www.frontiersin.org/articles/10.3389/fpls.2023.1327872/full
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