Universität zu Köln

Liller, Corinna B., Walla, Agatha, Boer, Martin P., Hedley, Pete, Macaulay, Malcolm, Effgen, Sieglinde, von Korff, Maria, van Esse, G. Wilma and Koornneef, Maarten ORCID: 0000-0002-7759-4869 (2017). Fine mapping of a major QTL for awn length in barley using a multiparent mapping population. Theor. Appl. Genet., 130 (2). S. 269 - 282. NEW YORK: SPRINGER. ISSN 1432-2242

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Abstract

Awn length was mapped using a multiparent population derived from cv. Morex and four wild accessions. One QTL was fine mapped and candidate genes were identified in NILs by RNA-seq. Barley awns are photosynthetically active and contribute to grain yield. Awn length is variable among both wild and cultivated barley genotypes and many mutants with alterations in awn length have been identified. Here, we used a multiparent mapping population derived from cv. Morex and four genetically diverse wild barley lines to detect quantitative trait loci (QTLs) for awn length. Twelve QTLs, distributed over the barley genome, were identified with the most significant one located on chromosome arm 7HL (QTL AL7.1). The effect of AL7.1 was confirmed using near isogenic lines (NILs) and fine-mapped in two independent heterogeneous inbred families to a < 0.9 cM interval. With exception of a small effect on grain width, no other traits such as plant height or flowering time were affected by AL7.1. Variant calling on transcripts obtained from RNA sequencing reads in NILs was used to narrow down the list of candidate genes located in the interval. This data may be used for further characterization and unravelling of the mechanisms underlying natural variation in awn length.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Liller, Corinna B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Walla, Agatha UNSPECIFIED UNSPECIFIED UNSPECIFIED Boer, Martin P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hedley, Pete UNSPECIFIED UNSPECIFIED UNSPECIFIED Macaulay, Malcolm UNSPECIFIED UNSPECIFIED UNSPECIFIED Effgen, Sieglinde UNSPECIFIED UNSPECIFIED UNSPECIFIED von Korff, Maria UNSPECIFIED UNSPECIFIED UNSPECIFIED van Esse, G. Wilma UNSPECIFIED UNSPECIFIED UNSPECIFIED Koornneef, Maarten UNSPECIFIED orcid.org/0000-0002-7759-4869 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-241229
DOI:	10.1007/s00122-016-2807-y
Journal or Publication Title:	Theor. Appl. Genet.
Volume:	130
Number:	2
Page Range:	S. 269 - 282
Date:	2017
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-2242
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language GENERATION INTER-CROSS; NEAR-ISOGENIC LINES; QUANTITATIVE TRAITS; GENETIC-ANALYSIS; GRAIN NUMBER; DOMESTICATION; MORPHOLOGY; SPIKE; YIELD; WILD Multiple languages Agronomy; Plant Sciences; Genetics & Heredity; Horticulture Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/24122