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Genetics of Whole Plant Morphology and Architecture

  • Laura RossiniEmail author
  • Gary J. Muehlbauer
  • Ron Okagaki
  • Silvio Salvi
  • Maria von Korff
Chapter
Part of the Compendium of Plant Genomes book series (CPG)

Abstract

Plant architectural features directly impact plant fitness and adaptation, and traits related to plant morphology and development represent important targets for crop breeding. Decades of mutagenesis research have provided a wealth of mutant resources, making barley (Hordeum vulgare L.) an interesting model for genetic dissection of grass morphology and architecture. Recent advances in genomics have propelled the identification of barley genes controlling different aspects of shoot and root development. In addition to gene discovery, it is important to understand the interplay between different developmental processes in order to support breeding of improved ideotypes for sustainable barley production under different climatic conditions. The purpose of the present chapter is to: (i) provide an overview of the morphology and development of shoot and root structures in barley; (ii) discuss novel insights into the genetic, molecular and hormonal mechanisms regulating root and shoot development and architecture; and (iii) highlight the genetic and physiological interactions among organs and traits with special focus on correlations between leaf and tiller development, flowering and tillering, as well as row-type and tillering.

Keywords

Hordeum vulgare Barley Plant height Tillering Root architecture Leaf patterning 

Notes

Acknowledgements

LR wishes to acknowledge FACCE ERA-NET funding under projects BarPLUS (ERA-NET FACCE SURPLUS grant no. 93) and ClimBar (ERA-NET FACCE on Climate Smart Agriculture) for supporting research on genetics of barley plant architecture in her laboratory. MK acknowledges funding by the German Cluster of Excellence on Plant Sciences (CEPLAS) EXC1028, the Priority Programme (SPP1530 Flowering time control—from natural variation to crop improvement) and the Max Planck Society.

Authors’ Contributions

LR, GJM, SS and MK conceived the layout of the chapter. GJM and RO wrote Sects. 13.1.1, 13.2.2 and 13.2.3, prepared Figs. 13.1, 13.2, 13.5 and Table 13.2. SS wrote Sects. 13.1.2 and 13.3, prepared Figs. 13.3 and 13.4. MK wrote Sects. 13.2.4 and 13.2.5. LR wrote Sects. 13.2.1 and 13.4, prepared Table 13.1, and integrated contributions from other authors. All authors reviewed and approved the final version of the chapter.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Laura Rossini
    • 1
    Email author
  • Gary J. Muehlbauer
    • 2
    • 3
  • Ron Okagaki
    • 3
  • Silvio Salvi
    • 4
  • Maria von Korff
    • 5
    • 6
    • 7
  1. 1.Università degli Studi di Milano, DiSAAMilanItaly
  2. 2.Department of Plant and Microbial BiologyUniversity of MinnesotaSt. PaulUSA
  3. 3.Department of Agronomy and Plant GeneticsUniversity of MinnesotaSt. PaulUSA
  4. 4.Department of Agricultural and Food SciencesUniversity of BolognaBolognaItaly
  5. 5.Max Planck Institute for Plant Breeding ResearchCologneGermany
  6. 6.Institute for Plant Genetics, Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany
  7. 7.Cluster of Excellence in Plant Sciences, Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany

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