Non-random inheritance of mitochondrial genomes in citrus hybrids produced by protoplast fusion
Identifieur interne : 002E22 ( Main/Exploration ); précédent : 002E21; suivant : 002E23Non-random inheritance of mitochondrial genomes in citrus hybrids produced by protoplast fusion
Auteurs : C. M. Cabasson [France] ; F. Luro [France] ; P. Ollitrault [France] ; J. W. Grosser [États-Unis]Source :
- Plant cell reports : (Print) [ 0721-7714 ] ; 2001.
Descripteurs français
- Pascal (Inist)
- Déterminisme génétique, Héritabilité, Génome, Mitochondrie, Fusion cellulaire, Protoplaste, Hybridation interspécifique, Amélioration génétique, Qualité production, Citrus reticulata, Citrus sinensis, Citrus paradisi, Polymorphisme longueur fragment restriction, Alloplasmie, Hybride nucléocytoplasmique.
English descriptors
- KwdEn :
Abstract
Somatic hybridization offers the possibility of manipulating chloroplast and mitochondrial genomes and evaluating their role on cultivar qualities in citrus. Numerous associations between Willow-leaf mandarin (Citrus deliciosa Ten.), as embryogenic parent, and sweet orange cv. Valencia (Citrus sinensis (L.) Osb.), as mesophyll parent, and between Willow-leaf mandarin (embryogenic parent) and grapefruit cv. Duncan (Citrus paradisi Macf.) (mesophyll parent) were obtained by the fusion of protoplasts induced by polyethylene glycol. Regenerated plants were characterized by flow cytometry and nuclear and mitochondrial DNA restriction fragment length polymorphism (RFLP). All plants were diploid. Diploid plants with the nuclear RFLP patterns of mandarin or sweet orange were identified in the progeny between these two parents, while only grapefruit nuclear types were found in the mandarin + grapefruit progeny. The diploid plants with the nuclear profile of the mesophyll parent originated systematically from cells formed through spontaneous association of the nuclear genome of the mesophyll parent and the mitochondrial genome of the embryogenic parent. These plants are assumed to be alloplasmic hybrids or cybrids. They were viable and have been propagated for field testing.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000867
- to stream PascalFrancis, to step Curation: 000137
- to stream PascalFrancis, to step Checkpoint: 000854
- to stream Main, to step Merge: 003010
- to stream Main, to step Curation: 002E22
Le document en format XML
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<term>Cell fusion</term>
<term>Citrus paradisi</term>
<term>Citrus reticulata</term>
<term>Citrus sinensis</term>
<term>Genetic determinism</term>
<term>Genetic improvement</term>
<term>Genome</term>
<term>Heritability</term>
<term>Interspecific hybridization</term>
<term>Mitochondria</term>
<term>Nucleocytoplasmic hybrid</term>
<term>Production quality</term>
<term>Protoplast</term>
<term>Restriction fragment length polymorphism</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Déterminisme génétique</term>
<term>Héritabilité</term>
<term>Génome</term>
<term>Mitochondrie</term>
<term>Fusion cellulaire</term>
<term>Protoplaste</term>
<term>Hybridation interspécifique</term>
<term>Amélioration génétique</term>
<term>Qualité production</term>
<term>Citrus reticulata</term>
<term>Citrus sinensis</term>
<term>Citrus paradisi</term>
<term>Polymorphisme longueur fragment restriction</term>
<term>Alloplasmie</term>
<term>Hybride nucléocytoplasmique</term>
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<front><div type="abstract" xml:lang="en">Somatic hybridization offers the possibility of manipulating chloroplast and mitochondrial genomes and evaluating their role on cultivar qualities in citrus. Numerous associations between Willow-leaf mandarin (Citrus deliciosa Ten.), as embryogenic parent, and sweet orange cv. Valencia (Citrus sinensis (L.) Osb.), as mesophyll parent, and between Willow-leaf mandarin (embryogenic parent) and grapefruit cv. Duncan (Citrus paradisi Macf.) (mesophyll parent) were obtained by the fusion of protoplasts induced by polyethylene glycol. Regenerated plants were characterized by flow cytometry and nuclear and mitochondrial DNA restriction fragment length polymorphism (RFLP). All plants were diploid. Diploid plants with the nuclear RFLP patterns of mandarin or sweet orange were identified in the progeny between these two parents, while only grapefruit nuclear types were found in the mandarin + grapefruit progeny. The diploid plants with the nuclear profile of the mesophyll parent originated systematically from cells formed through spontaneous association of the nuclear genome of the mesophyll parent and the mitochondrial genome of the embryogenic parent. These plants are assumed to be alloplasmic hybrids or cybrids. They were viable and have been propagated for field testing.</div>
</front>
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<country name="États-Unis"><region name="Floride"><name sortKey="Grosser, J W" sort="Grosser, J W" uniqKey="Grosser J" first="J. W." last="Grosser">J. W. Grosser</name>
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