The shoot and root growth of Brachypodium and its potential as a model for wheat and other cereal crops

Functional Plant Biology : FPB
Michelle WattIain W Wilson

Abstract

The grass genetic model Brachypodium (Brachypodium distachyon (L.) Beauv., sequenced line Bd 21) was studied from germination to seed production to assess its potential as a phenotypic model for wheat (Triticum aestivum L.) and other cereal crops. Brachypodium and wheat shoot and root development and anatomy were highly similar. Main stem leaves and tillers (side shoots) emerged at the same time in both grasses in four temperature and light environments. Both developed primary and nodal axile roots at similar leaf stages with the same number and arrangement of vascular xylem tracheary elements (XTEs). Brachypodium, unlike wheat, had an elongated a mesocotyl above the seed and developed only one fine primary axile root from the base of the embryo, while wheat generally has three to five. Roots of both grasses could develop first, second and third order branches that emerged from phloem poles. Both developed up to two nodal axile roots from the coleoptile node at leaf 3, more than eight nodal axile roots from stem nodes after leaf 4, and most (97%) of the deepest roots at flowering were branches. In long days Brachypodium flowered 30 days after emergence, and root systems ceased descent 42 cm from the soil surface, such that matu...Continue Reading

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Citations

Apr 3, 2012·Journal of Experimental Botany·Vincent ChochoisMichelle Watt
Jan 1, 2015·Plants·Ana Paez-GarciaMaria J Monteros
Feb 9, 2020·International Journal of Molecular Sciences·Alexander BetekhtinRobert Hasterok
Mar 1, 2016·Functional Plant Biology : FPB·Katharina SchneebeliMichelle Watt
Mar 27, 2015·Annals of Botany·Timothy L FitzgeraldKemal Kazan
Apr 21, 2019·The New Phytologist·Rana MunnsStephen D Tyerman
Apr 25, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Paul A IngramTedd Elich
Sep 9, 2016·Journal of the Science of Food and Agriculture·Man Bo LeeYong Weon Seo
Apr 25, 2019·Journal of Mass Spectrometry : JMS·Dušan VeličkovićChristopher R Anderton
Mar 29, 2014·Journal of Integrative Plant Biology·Richard PoiréRobert T Furbank
Dec 2, 2010·Journal of Experimental Botany·Afrasyab RahnamaMichelle Watt
Apr 25, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·David Pacheco-Villalobos, Christian S Hardtke
Jul 21, 2011·Plant Physiology·Jelena BrkljacicJohn P Vogel

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