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Agronomy 2016, 6(4), 60; doi:10.3390/agronomy6040060

Haploid and Doubled Haploid Techniques in Perennial Ryegrass (Lolium perenne L.) to Advance Research and Breeding

1
Molecular Plant Breeding, Institute of Agricultural Sciences, ETH Zurich, 8092 Zurich, Switzerland
2
Department of Agronomy, Iowa State University, 100 Osborne Drive, Ames, IA 50011, USA
*
Author to whom correspondence should be addressed.
Academic Editors: John W. Forster and Kevin F. Smith
Received: 28 September 2016 / Revised: 9 November 2016 / Accepted: 10 November 2016 / Published: 28 November 2016
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Abstract

The importance of haploid and doubled haploid (DH) techniques for basic and applied research, as well as to improve the speed of genetic gain when applied in breeding programs, cannot be overstated. They have become routine tools in several major crop species, such as maize (Zea mays L.), wheat (Triticum aestivum L.), and barley (Hordeum vulgare L.). DH techniques in perennial ryegrass (Lolium perenne L.), an important forage species, have advanced to a sufficiently successful and promising stage to merit an exploration of what their further developments may bring. The exploitation of both in vitro and in vivo haploid and DH methods to (1) purge deleterious alleles from germplasm intended for breeding; (2) develop mapping populations for genetic and genomic studies; (3) simplify haplotype mapping; (4) fix transgenes and mutations for functional gene validation and molecular breeding; and (5) hybrid cultivar development are discussed. Even with the comparatively modest budgets of those active in forage crop improvement, haploid and DH techniques can be developed into powerful tools to achieve the acceleration of the speed of genetic gain needed to meet future agricultural demands. View Full-Text
Keywords: anther culture; doubled haploid (DH); forage crops; microspore culture; perennial ryegrass (Lolium perenne L.); plant breeding anther culture; doubled haploid (DH); forage crops; microspore culture; perennial ryegrass (Lolium perenne L.); plant breeding
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MDPI and ACS Style

Begheyn, R.F.; Lübberstedt, T.; Studer, B. Haploid and Doubled Haploid Techniques in Perennial Ryegrass (Lolium perenne L.) to Advance Research and Breeding. Agronomy 2016, 6, 60.

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