Next Article in Journal
Persistent Gaps of Knowledge for Naming and Distinguishing Multiple Species of Crown-of-Thorns-Seastar in the Acanthaster planci Species Complex
Next Article in Special Issue
Putting Plant Genetic Diversity and Variability at Work for Breeding: Hybrid Rice Suitability in West Africa
Previous Article in Journal / Special Issue
The Phylogeny and Biogeography of Phyla nodiflora (Verbenaceae) Reveals Native and Invasive Lineages throughout the World
Article Menu

Export Article

Open AccessReview
Diversity 2017, 9(2), 21; doi:10.3390/d9020021

Barley Developmental Mutants: The High Road to Understand the Cereal Spike Morphology

1
CREA—GB, Research Centre for Genomics and Bioinformatics, Fiorenzuola d’Arda 29017, Italy
2
Department of Agricultural and Food Science, University of Modena and Reggio Emilia, Reggio Emilia 42122, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Rosa Rao and Giandomenico Corrado
Received: 23 February 2017 / Revised: 5 May 2017 / Accepted: 6 May 2017 / Published: 11 May 2017
(This article belongs to the Special Issue Plant Genetics and Biotechnology in Biodiversity)
View Full-Text   |   Download PDF [84957 KB, uploaded 11 May 2017]   |  

Abstract

A better understanding of the developmental plan of a cereal spike is of relevance when designing the plant for the future, in which innovative traits can be implemented through pre-breeding strategies. Barley developmental mutants can be a Mendelian solution for identifying genes controlling key steps in the establishment of the spike morphology. Among cereals, barley (Hordeum vulgare L.) is one of the best investigated crop plants and is a model species for the Triticeae tribe, thanks to several characteristics, including, among others, its adaptability to a wide range of environments, its diploid genome, and its self-pollinating mating system, as well as the availability of its genome sequence and a wide array of genomic resources. Among them, large collections of natural and induced mutants have been developed since the 1920s, with the aim of understanding developmental and physiological processes and exploiting mutation breeding in crop improvement. The collections are not only comprehensive in terms of single Mendelian spike mutants, but with regards to double and triple mutants derived from crosses between simple mutants, as well as near isogenic lines (NILs) that are useful for genetic studies. In recent years the integration of the most advanced omic technologies with historical mutation-genetics research has helped in the isolation and validation of some of the genes involved in spike development. New interrogatives have raised the question about how the behavior of a single developmental gene in different genetic backgrounds can help in understanding phenomena like expressivity, penetrance, phenotypic plasticity, and instability. In this paper, some genetic and epigenetic studies on this topic are reviewed. View Full-Text
Keywords: homeotic mutants; Hordeum vulgare; spike architecture; genomics homeotic mutants; Hordeum vulgare; spike architecture; genomics
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Terzi, V.; Tumino, G.; Pagani, D.; Rizza, F.; Ghizzoni, R.; Morcia, C.; Stanca, A.M. Barley Developmental Mutants: The High Road to Understand the Cereal Spike Morphology. Diversity 2017, 9, 21.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Diversity EISSN 1424-2818 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top