Wheat Genomics: Present Status and Future Prospects
Open Access
- 19 May 2008
- journal article
- review article
- Published by Hindawi Limited in International Journal of Plant Genomics
- Vol. 2008, 1-36
- https://doi.org/10.1155/2008/896451
Abstract
Wheat (Triticum aestivumL.), with a large genome (16000 Mb) and high proportion (80%) of repetitive sequences, has been a difficult crop for genomics research. However, the availability of extensive cytogenetics stocks has been an asset, which facilitated significant progress in wheat genomic research in recent years. For instance, fairly dense molecular maps (both genetic and physical maps) and a large set of ESTs allowed genome-wide identification of gene-rich and gene-poor regions as well as QTL including eQTL. The availability of markers associated with major economic traits also allowed development of major programs on marker-assisted selection (MAS) in some countries, and facilitated map-based cloning of a number of genes/QTL. Resources for functional genomics including TILLING and RNA interference (RNAi) along with some new approaches like epigenetics and association mapping are also being successfully used for wheat genomics research. BAC/BIBAC libraries for the subgenome D and some individual chromosomes have also been prepared to facilitate sequencing of gene space. In this brief review, we discuss all these advances in some detail, and also describe briefly the available resources, which can be used for future genomics research in this important crop.
Keywords
Funding Information
- Indian National Science Academy
This publication has 160 references indexed in Scilit:
- A high-density genetic map of hexaploid wheat (Triticum aestivum L.) from the cross Chinese Spring × SQ1 and its use to compare QTLs for grain yield across a range of environmentsTheoretical and Applied Genetics, 2005
- A high-density microsatellite consensus map for bread wheat (Triticum aestivum L.)Theoretical and Applied Genetics, 2004
- In silico comparative analysis reveals a mosaic conservation of genes within a novel colinear region in wheat chromosome 1AS and rice chromosome 5SFunctional & Integrative Genomics, 2004
- Microcolinearity between a 2-cM region encompassing the grain protein content locus Gpc-6B1 on wheat chromosome 6B and a 350-kb region on rice chromosome 2Functional & Integrative Genomics, 2004
- Transferable EST-SSR markers for the study of polymorphism and genetic diversity in bread wheatMolecular Genetics and Genomics, 2003
- Genes encoding plastid acetyl-CoA carboxylase and 3-phosphoglycerate kinase of the Triticum / Aegilops complex and the evolutionary history of polyploid wheatProceedings of the National Academy of Sciences of the United States of America, 2002
- Chromosomal location of a Triticum timopheevii - derived powdery mildew resistance gene transferred to common wheatGenome, 2000
- A chromosome region-specific mapping strategy reveals gene-rich telomeric ends in wheatChromosoma, 1993
- RFLP-based genetic maps of wheat homoeologous group 7 chromosomesTheoretical and Applied Genetics, 1989
- New method for mapping genes in human chromosomesNature, 1975