Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers
Transferring an asexual mode of reproduction by seeds (apomixis) to cultivated plants would enable clonal reproduction of heterozygous genotypes such as F1 hybrids with hybrid vigor (heterosis), facilitating their access and multiplication by small-scale growers. Although sources of apomixis and the...
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| Language: | English |
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Académie des sciences
2024-01-01
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| Series: | Comptes Rendus Biologies |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/biologies/articles/10.5802/crbiol.125/ |
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| author | Vernet, Aurore Meynard, Donaldo Guiderdoni, Emmanuel |
| author_facet | Vernet, Aurore Meynard, Donaldo Guiderdoni, Emmanuel |
| author_sort | Vernet, Aurore |
| collection | DOAJ |
| description | Transferring an asexual mode of reproduction by seeds (apomixis) to cultivated plants would enable clonal reproduction of heterozygous genotypes such as F1 hybrids with hybrid vigor (heterosis), facilitating their access and multiplication by small-scale growers. Although sources of apomixis and the genetic loci controlling its constituent elements have been identified in wild species, their transfer by crossing to cultivated species has so far been unsuccessful. Here, we have introduced synthetic apomixis in hybrid rice to produce a high (95–100%) frequency of clonal seeds, via the inactivation of three meiotic genes—resulting in unreduced, non-recombined gametes—and the addition of an egg cell parthenogenesis trigger. The genotype and phenotype, including grain quality, of the F1 hybrid are reproduced identically in the clonal apomictic progenies. These results make synthetic apomixis compatible with future use in agriculture. |
| format | Article |
| id | doaj-art-0a890bc3cbc34909975c1c3c3dfe51d1 |
| institution | Kabale University |
| issn | 1768-3238 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus Biologies |
| spelling | doaj-art-0a890bc3cbc34909975c1c3c3dfe51d12025-02-07T10:37:08ZengAcadémie des sciencesComptes Rendus Biologies1768-32382024-01-01346G210711610.5802/crbiol.12510.5802/crbiol.125Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers Vernet, Aurore0https://orcid.org/0009-0006-6811-9376Meynard, Donaldo1https://orcid.org/0009-0000-7951-3287Guiderdoni, Emmanuel2https://orcid.org/0000-0003-2760-2864CIRAD, UMR AGAP Institut, 34398 Montpellier, France; Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, FranceCIRAD, UMR AGAP Institut, 34398 Montpellier, France; Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, FranceCIRAD, UMR AGAP Institut, 34398 Montpellier, France; Université de Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, FranceTransferring an asexual mode of reproduction by seeds (apomixis) to cultivated plants would enable clonal reproduction of heterozygous genotypes such as F1 hybrids with hybrid vigor (heterosis), facilitating their access and multiplication by small-scale growers. Although sources of apomixis and the genetic loci controlling its constituent elements have been identified in wild species, their transfer by crossing to cultivated species has so far been unsuccessful. Here, we have introduced synthetic apomixis in hybrid rice to produce a high (95–100%) frequency of clonal seeds, via the inactivation of three meiotic genes—resulting in unreduced, non-recombined gametes—and the addition of an egg cell parthenogenesis trigger. The genotype and phenotype, including grain quality, of the F1 hybrid are reproduced identically in the clonal apomictic progenies. These results make synthetic apomixis compatible with future use in agriculture.https://comptes-rendus.academie-sciences.fr/biologies/articles/10.5802/crbiol.125/ApomixisClonal reproductionF1 hybridPlant breedingRice |
| spellingShingle | Vernet, Aurore Meynard, Donaldo Guiderdoni, Emmanuel Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers Comptes Rendus Biologies Apomixis Clonal reproduction F1 hybrid Plant breeding Rice |
| title | Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers
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| title_full | Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers
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| title_fullStr | Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers
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| title_full_unstemmed | Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers
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| title_short | Clonal reproduction by seed of a cultivated hybrid plant: a new perspective for small-scale rice growers
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| title_sort | clonal reproduction by seed of a cultivated hybrid plant a new perspective for small scale rice growers |
| topic | Apomixis Clonal reproduction F1 hybrid Plant breeding Rice |
| url | https://comptes-rendus.academie-sciences.fr/biologies/articles/10.5802/crbiol.125/ |
| work_keys_str_mv | AT vernetaurore clonalreproductionbyseedofacultivatedhybridplantanewperspectiveforsmallscalericegrowers AT meynarddonaldo clonalreproductionbyseedofacultivatedhybridplantanewperspectiveforsmallscalericegrowers AT guiderdoniemmanuel clonalreproductionbyseedofacultivatedhybridplantanewperspectiveforsmallscalericegrowers |