Results 11 to 20 of about 2,834 (155)

Evolution of an Apomixis-Specific Allele Class in Supernumerary Chromatin of Apomictic Boechera

Frontiers in Plant Science, 2022
Asexual reproduction through seeds in plants (i.e., apomixis) is a heritable trait, and apomixis- linked loci have been identified in multiple species. However, direct identification of genomic elements is typically hindered as apomixis-linked loci and ...
Martin Mau, Martin Mau, Terezie M. Mandáková, Xingliang Ma, Jana Ebersbach, Lifang Zou, Martin A. Lysak, Timothy F. Sharbel, Timothy F. Sharbel   +8 more
doaj   +1 more source

Genomic methylation patterns in pre-meiotic gynoecia of wild-type and RdDM mutants of Arabidopsis

Frontiers in Plant Science, 2023
IntroductionAlthough DNA methylation patterns are generally considered to be faithfully inherited in Arabidopsis thaliana (Arabidopsis), there is evidence of reprogramming during both male and female gametogenesis.
Quetzely Ortiz-Vasquez, Gloria León-Martínez, Carlos Barragán-Rosillo, Eduardo González-Orozco, Samuel Deans, Billy Aldridge, Martin Vickers, Xiaoqi Feng, Jean-Philippe Vielle-Calzada   +8 more
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Engineering apomixis in crops

Theoretical and Applied Genetics, 2023
AbstractApomixis is an asexual mode of reproduction through seeds where progeny are clones of the mother plants. Naturally apomictic modes of reproduction are found in hundreds of plant genera distributed across more than 30 plant families, but are absent in major crop plants.
Alexander Mahlandt, Dipesh Kumar Singh, Raphael Mercier   +2 more
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Apomixis: A Developmental Perspective

Annual Review of Plant Biology, 2003
The term apomixis encompasses a suite of processes whereby seeds form asexually in plants. In contrast to sexual reproduction, seedlings arising from apomixis retain the genotype of the maternal parent. The transfer of apomixis and its effective utilization in crop plants (where it is largely absent) has major advantages in agriculture.
Koltunow, Anna M., Grossniklaus, Ueli
openaire   +5 more sources

Differential Epigenetic Marks Are Associated with Apospory Expressivity in Diploid Hybrids of Paspalum rufum

Plants, 2021
Apomixis seems to emerge from the deregulation of preexisting genes involved in sexuality by genetic and/or epigenetic mechanisms. The trait is associated with polyploidy, but diploid individuals of Paspalum rufum can form aposporous embryo sacs and ...
Mariano Soliman, Maricel Podio, Gianpiero Marconi, Marco Di Marsico, Juan Pablo A. Ortiz, Emidio Albertini, Luciana Delgado   +6 more
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The evolution of apomixis [PDF]

Heredity, 1981
The selective forces responsible for the evolution of gametophytic apomixis in outbreeding plant populations are analysed in terms of a simple single gene model. In the absence of selection, apomixis inevitably becomes fixed in a population. This conclusion holds regardless of the dominance relations of the alleles specifying apomictic versus sexual ...
D R Marshall, A H D Brown
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Viewpoints on apornictic and sexual reproduction in angiosperms

Acta Societatis Botanicorum Poloniae, 2014
Gametophytic apomixis implies different changes of the reproductive cycle of sexual plants. Each of these "elements of apomixis" occurs in sexual plants, which may even display functional diploid parthenogenesis.
Sven Asker
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Dysplasia of male organs induces apomixis in Malus crabapples

Ornamental Plant Research, 2021
Apomixis has high value in fruit crop propagation and breeding applications, particularly for the transgenerational fixation of heterosis. In this study, we found that flowers of the triploid Malus cultivar 'Royalty' that were bagged after emasculation ...
Yujing Hu, Yanfen Lu, Linke Chao, Zhen Wang, Yufen Bu, Jie Zhang, Wenhe Wang, Yuncong Yao   +7 more
doaj   +1 more source

High-frequency synthetic apomixis in hybrid rice [PDF]

, 2022
Introducing asexual reproduction through seeds – apomixis – into crop species could revolutionize agriculture by allowing F1 hybrids with enhanced yield and stability to be clonally propagated. Engineering synthetic apomixis has proven feasible in inbred
Leblanc, Olivier, Gibert, O., Qichao Lian, Kyle Shankle, Julien Frouin, Meunier, A., Sundaresan, Venkatesan, Imtiyaz Khanday, Lian, Q., Bissah, M., Bissah, Matilda, Raphael Mercier, Leblanc, O., Mieulet, Delphine, Anne Cécile Meunier, Vernet, A., Autran, Daphné, Aurore Vernet, Guiderdoni, Emmanuel, Rivallan, Ronan, Bissah, Matilda Ntowa, Venkatesan Sundaresan, Vernet, Aurore, Mercier, R., Frouin, J., Shankle, Kyle, Rivallan, R., Gibert, Olivier, James Taillebois, Taillebois, James E., Olivier Leblanc, Mieulet, D., Frouin, Julien, Emmanuel Guiderdoni, Khanday, I., Ronan Rivallan, Donaldo Meynard, Meynard, Donaldo, Taillebois, J., Lian, Qichao, Meunier, Anne Cécile, Taillebois, James, Shankle, K., Khanday, Imtiyaz, Olivier Gibert, Meynard, D., Mercier, Raphael, Matilda Bissah, Daphné Autran, Guiderdoni, E., Autran, D., Sundaresan, V., Delphine Mieulet   +52 more
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Is apomixis occurring in walnut (Juglans regia L.)? New data from progeny molecular tests and cytological investigations shed light on its reproductive system

Frontiers in Plant Science, 2023
IntroductionPersian walnut (Juglans regia) is an economically important nut fruit species cultivated worldwide for its nutritious kernel and timber quality wood.
Sahar Solhjoo, Reza Fatahi, Zabihollah Zamani, Abdolkarim Chehregani Rad, Fabio Palumbo, Gianni Barcaccia   +5 more
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