Genetic analysis of preharvest sprouting in a six-row barley cross

Ullrich, S. E.; Clancy, J. A.; Blanco, Isabel A. del; Lee, Hyejin; Jitkov, Vadim A.; Han, Feng; Kleinhofs, A.; Matsui, K.

doi:10.1007/s11032-007-9125-7

Cited by 28 publications

(28 citation statements)

References 24 publications

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“…The same research has been done in wild barley and five QTLs for seed dormancy were detected, three of them co-located with QTLs found earlier in the cultivated barley crosses (Vanhala and Stam 2006). Ullrich et al (2008) detected seven and eight regions located on five and six chromosomes for PHS and dormancy, respectively. All QTLs for PHS resistance coincide with known QTLs for dormancy, but some QTLs appear to be more important for PHS than for dormancy.…”

Section: Introductionsupporting

confidence: 70%

A major QTL associated with preharvest sprouting in rapeseed (Brassica napus L.)

et al. 2009

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Preharvest sprouting (PHS) is one of the most important factors affecting the cereal production worldwide, in regions characterized by rainfall and high humidity during harvest season. It is sometimes a problem in rapeseed (Brassica napus L.), especially in production of commercial F 1 hybrids. To detect quantitative trait loci (QTL) controlling PHS, a F 2 population consisting of 269 F 2:3 lines was created from the cross between a PHS-tolerant line (117AB) and a PHS-susceptible line (7,605). A linkage map was constructed using 35 Simple Sequence Repeat markers and 242 Amplified Fragment Length Polymorphism markers. PHS was measured as a percentage of sprouted seeds on the mother plant, 7 days after physiological maturity. Five putative QTLs for PHS were detected and located on LG2 (N11) and LG7 (N3), respectively. Phenotypic variance explained by each QTL ranged from 4.11 to 50.78% and the five putative QTLs explained about 75.63% of the total phenotypic variance. A major QTL was identified on LG2 (N11) flanked by P3C4180 and C6C13160, which explained 50.78% of the total phenotypic variance. Meanwhile, we detected four significant epistatic interactions with a total contribution of 17.16% of the total phenotypic variance.

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Section: Introductionsupporting

confidence: 70%

A major QTL associated with preharvest sprouting in rapeseed (Brassica napus L.)

et al. 2009

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“…Comparing the phenotypic results of these two crosses and that of the previously published Steptoe/ Morex cross (Ullrich et al 2008), there are clear diVerences in phenotypic polymorphism between parents within crosses and parent pairs among crosses. …”

Section: Resultsmentioning

confidence: 70%

“…2c, f). In general, skewed frequency distributions are very common for dormancy and preharvest sprouting trait inheritance (QTL) studies (Ullrich et al 1993(Ullrich et al , 2008Kato et al 2001;Li et al 2003;Hori et al 2007). …”

Section: Resultsmentioning

confidence: 99%

“…All procedures were as described in Ullrich et al (2008). The H/TR mapping population and parents were grown in the greenhouse (GH) in 2005 and Weld (F) at Spillman Agronomy Farm, Pullman, WA in 2006 in completely randomized designs.…”

Section: Plant Materialsmentioning

confidence: 99%

“…In the S/M study, PHS and DOR QTLs were found on seven and eight regions of Wve and six chromosomes with eVects ranging from 4 to 31% and 3 to 39%, respectively (Ullrich et al 2008).…”

Section: Introductionmentioning

confidence: 98%

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Genetic relationships between preharvest sprouting and dormancy in barley

et al. 2009

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Preharvest sprouting (PHS) and dormancy (DOR) can be problems in barley production and end use quality, especially for barley used for seed and malting. Three crosses previously analyzed for DOR inheritance, were reanalyzed for PHS and DOR inheritance using artiWcial rain to calculate sprout score (SSc) and measure alpha-amylase activity (AA). Germination percentage of untreated grain for DOR was also measured. The crosses are 'Steptoe'/'Morex' (previously published), 'Harrington'/ TR306, and 'Triumph'/Morex. Among the three crosses, DOR QTLs were located to six and PHS QTLs to Wve chromosomes, respectively. Chromosome 6H was never implicated. Previously identiWed DOR QTLs were conWrmed in each cross, and most PHS QTLs coincided with DOR QTLs, but not all. Unique PHS QTLs were identiWed on chromosomes 1H (AA), 2H (SSc, AA), 3H (SSc, AA), and 7H (SSc, AA) and unique DOR QTLs on 1H, 2H, and 7H. Results indicate that PHS susceptibility and DOR are not always represented by opposite alleles at a locus. Some QTL regions for a given trait are conserved across crosses and some are not. Several QTLs are suitable for marker-assisted selection to balance PHS and DOR in breeding new cultivars.

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Biochemistry, Physiology, and Genetics of Endosperm Mobilization in Germinated Barley Grain

Fincher

2010

Barley

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Genetic analysis of preharvest sprouting in a six-row barley cross

Cited by 28 publications

References 24 publications

A major QTL associated with preharvest sprouting in rapeseed (Brassica napus L.)

A major QTL associated with preharvest sprouting in rapeseed (Brassica napus L.)

Genetic relationships between preharvest sprouting and dormancy in barley

Biochemistry, Physiology, and Genetics of Endosperm Mobilization in Germinated Barley Grain

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