Apomixis Allows the Transgenerational Fixation of Phenotypes in Hybrid Plants

Current Biology : CB
Christian SailerUeli Grossniklaus

Abstract

The introduction of apomixis-asexual reproduction through seeds-into crop plants is considered the holy grail of agriculture, as it would provide a mechanism to maintain agriculturally important phenotypes [1, 2]. Apomicts produce clonal offspring, such that apomixis could be used to transgenerationally fix any genotype, including that of F1 hybrids, which are used in agriculture due to their superior vigor and yield [3-9]. However, traits (phenotypes) do not only result from a complex combination of genetic and environmental variation but can also be influenced by epigenetic variation, which can be transgenerationally heritable in plants [10-15]. Hence, it is far from clear whether genetic fixation by apomixis suffices to fix the agriculturally relevant phenotypes of F1 hybrids, in particular because hybridization was recently shown to induce epigenetic changes [16, 17]. Here, we show that the phenotypes of Hieracium pilosella hybrids can be fixed across generations by apomixis. Using a natural apomict, we created 11 hybrid genotypes (lines). In these and a parental line, we analyzed 20 phenotypic traits that are related to plant growth and reproduction. Of the 20 traits, 18 (90%) were stably inherited over two apomictic gener...Continue Reading

References

Aug 22, 1997·Science·S E Jacobsen, E M Meyerowitz
Sep 25, 2003·Annual Review of Plant Biology·Anna M Koltunow, Ueli Grossniklaus
Jun 4, 2004·Nature Biotechnology·Charles SpillaneUeli Grossniklaus
Oct 19, 2006·Proceedings of the National Academy of Sciences of the United States of America·Andrew S CatanachRoss Bicknell
Nov 22, 2007·Current Opinion in Genetics & Development·Célia BarouxUeli Grossniklaus
Jun 27, 2009·PLoS Genetics·Frank JohannesVincent Colot
Nov 26, 2009·Epigenetics : Official Journal of the DNA Methylation Society·Jon Reinders, Jerzy Paszkowski
Feb 19, 2011·Science·Mohan P A MarimuthuRaphaël Mercier
May 19, 2011·Sexual Plant Reproduction·Ueli Grossniklaus
Feb 15, 2012·Proceedings of the National Academy of Sciences of the United States of America·Ian K GreavesElizabeth S Dennis
Apr 17, 2012·Plant & Cell Physiology·Jose F Gutierrez-Marcos, Hugh G Dickinson
Apr 27, 2013·Cold Spring Harbor Symposia on Quantitative Biology·S HirschU Grossniklaus
Jun 12, 2013·Nature Reviews. Genetics·Z Jeffrey Chen
Oct 15, 2013·Evolution; International Journal of Organic Evolution·Franziska Turck, George Coupland
Feb 8, 2014·Science·Sandra CortijoFrank Johannes

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Citations

Feb 10, 2016·Current Biology : CB·Peter J van DijkStephen E Schauer
Nov 27, 2018·Journal of Integrative Plant Biology·Neil J ShirleyMatthew R Tucker
Mar 4, 2020·International Journal of Molecular Sciences·Jinshan CaoYouning Wang
Mar 25, 2019·Frontiers in Plant Science·Pankaj KaushalDevendra R Malaviya
Jul 16, 2020·Genes·Armin Scheben, Diego Hojsgaard
Jul 29, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M KitaviC Spillane
Apr 26, 2018·Genes & Development·Duarte D Figueiredo, Claudia Köhler
Jan 31, 2021·Communications Biology·Xing WangZhenjun Sun
Jan 11, 2021·Current Opinion in Plant Biology·Imtiyaz Khanday, Venkatesan Sundaresan
Jan 10, 2021·The New Phytologist·Martin MauTimothy F Sharbel
Jan 25, 2020·Trends in Genetics : TIG·Peggy Ozias-Akins, Joann A Conner
Apr 4, 2021·Plants·Viviana EcheniqueOlivier Leblanc

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