Diversity of agronomic and morphological traits in a mutant population of bread wheat studied in the Healthgrain program

A mutant population of spring wheat cv. Cadenza was produced at Rothamsted Research in 2004-5, both for TILLING and to generate variation in the contents of phytochemical components studied in the Healthgrain program. The agronomic and morphological properties of this mutant hexaploid wheat populati...

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Bibliographic Details
Published in:	Euphytica Vol. 174; no. 3; pp. 409 - 421
Main Authors:	Rakszegi, M, Kisgyörgy, B. N, Tearall, K, Shewry, P. R, Láng, L, Phillips, A, Bedő, Z
Format:	Journal Article
Language:	English
Published:	Dordrecht Dordrecht : Springer Netherlands 01-08-2010 Springer Netherlands Springer Springer Nature B.V
Subjects:	agronomic traits Agronomy. Soil science and plant productions Airborne microorganisms Biodiversity Biological and medical sciences Biomedical and Life Sciences Biotechnology breadmaking quality color disease resistance field experimentation Flowers & plants Fundamental and applied biological sciences. Psychology genetic variation Genetics and breeding of economic plants Genotype & phenotype Genotypes Grain height Heterogeneity Leaves Life Sciences Mutants Mutation nutritive value phenology Phenotypes phytochemicals plant breeding Plant Genetics and Genomics plant morphology plant pathogenic fungi Plant Pathology Plant Physiology Plant Sciences powdery mildew rust diseases seasonal variation seed set shape single seed descent Spring wheat Triticum aestivum Wheat United Kingdom TILLING population Phenotyping Mutation Monocotyledones Cereal crop Phenotype Gramineae Agronomy Morphology Angiospermae Genetic improvement Population Spermatophyta Triticum aestivum
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Summary:	A mutant population of spring wheat cv. Cadenza was produced at Rothamsted Research in 2004-5, both for TILLING and to generate variation in the contents of phytochemical components studied in the Healthgrain program. The agronomic and morphological properties of this mutant hexaploid wheat population (generations M₃-M₆) were studied in a 3-year field experiment. Most of the traits were scored according to UPOV TG/3/11, namely the time of ear emergence, plant height, ear glaucosity, shape, density and length, presence of awns and scurs, seasonal type, and grain colour. Other characters such as visible mutant phenotypes, ear sterility, heterogeneity of head rows, leaf colour and responses to powdery mildew and leaf rust were also studied. Variation in certain breadmaking quality parameters was also studied. The EMS mutant Cadenza lines studied showed wide diversity in terms of morphological and agronomic properties. The variation in agronomic properties was lower in 2007 and 2008 than in 2006, partly because of the SSD (single seed descent) in the M₄ generation and partly because of the loss of late heading genotypes. The diversity was lowest in 2007, probably due to the extremely dry weather.
Bibliography:	http://dx.doi.org/10.1007/s10681-010-0149-4
ISSN:	0014-2336 1573-5060
DOI:	10.1007/s10681-010-0149-4