NDLI: QTLs for resistance to preharvest sprouting in rye (Secale cereale L.)

Content Provider	Springer Nature Link
Author	Masojć, Piotr Banek Tabor, Aneta Milczarski, Paweł Twardowska, Marta
Copyright Year	2007
Abstract	Grain quality of rye is often negatively affected by sprouting — a complex trait with a poorly understood genetic background and strong interaction with weather conditions. The aim of this report was to detect the main quantitative trait loci (QTLs) underlying preharvest sprouting resistance in rye, measured as a percentage of sprouted kernels after spraying spikes with water for 7 days. Simple and composite interval mapping, carried out in 3 environments on 94 F$_{3}$ and F$_{4}$ families of the cross between sprouting-susceptible (541) and sprouting-resistant (Ot1-3) inbred lines, revealed 5 QTLs located on chromosome arms 1RL, 2RL, 5RL, 6RL and 7RL. The significance of these QTLs was additionally proved by disruptive selection carried out on 5000 F$_{2}$ plants of the 541 × Ot1-3 cross and continued to the F$_{5}$ generation of recombinant inbred lines (RIL), which strongly affected allele frequencies at linked marker loci. Resistance to preharvest sprouting showed dominant inheritance except forQPhs.uas-7R.1 (recessive) andQPhs.uas-1R.1 (additive). Results of the present study suggest that introgression of 4–5 QTLs, identified in line Ot1-3, should substantially reduce sprouting risk in rye varieties.
Starting Page	211
Ending Page	217
Page Count	7
File Format	PDF
ISSN	12341983
Journal	Journal of Applied Genetics
Volume Number	48
Issue Number	3
e-ISSN	21903883
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	preharvest sprouting quantitative trait loci rye interval mapping molecular markers Life Sciences Animal Genetics and Genomics Human Genetics Microbial Genetics and Genomics Plant Genetics & Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine

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