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Yang, Hong; Korban, Schuyler S.; Krüger, Jutta; Schmidt, Hanna

doi:10.1023/a:1002998121106

Cited by 37 publications

(2 citation statements)

References 18 publications

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“…BSA was first used to identify markers for disease resistance genes in lettuce species (Michelmore et al 1991). Since then the technique has been used in many studies for identification of markers in different crop species such as apple (Yang et al 1997), grapevine (Lahogue et al 1998), and maize (Quarrie et al 1999). A similar approach to ours identified 4 markers closely linked to the Rsv1 locus of soybean mosaic virus (Hayes and Saghai Maroof 2000).…”

Section: Discussionmentioning

confidence: 60%

Mapping and validation of the genes for resistance to Pyrenophora teres f. teres in barley (Hordeum vulgare L.)

Çakır¹,

Gupta²,

Platz³

et al. 2003

Aust. J. Agric. Res.

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Abstract. Identification and deployment of disease resistance genes are key objectives of Australian barley breeding programs. Two doubled haploid (DH) populations derived from Tallon × Kaputar (TK) and VB9524 × ND11231 (VN) crosses were used to identify markers for net type net blotch (NTNB) (Pyrenophora teres f. teres). The maps included 263 and 250 markers for TK and VN populations, respectively. The TK population was screened with 5 pathotypes and the VN population with 1 pathotype of NTNB as seedlings in the glasshouse. In addition, the TK population was subjected to natural infection in the field at Hermitage Research Station, Qld. Analyses of the markers were performed using the software packages MapManager and Qgene. One region on chromosome 6H was strongly associated with resistance to NTNB in both populations (R 2 = 83% for TK and 66% for VN). In the TK population, 2 more quantitative trait loci (QTLs) were identified on chromosomes 2H and 3H, with R 2 values of 30% and 31%, respectively. These associations were consistent over all pathotypes studied during the seedling stage. The same QTL on chromosome 6H was also found to be highly significantly associated (R 2 = 65%) with the adult plant (field) response in the TK population. There are several very closely linked markers showing strong associations in these regions. Association of the 4 markers on chromosome 6H QTL with resistance to the NTNB has been validated in 2 other DH populations derived from barley crosses Pompadour × Stirling and WPG8412 × Stirling. These markers present an opportunity for marker assisted selection of lines resistant to NTNB in barley breeding programs.

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Section: Discussionmentioning

confidence: 60%

Mapping and validation of the genes for resistance to Pyrenophora teres f. teres in barley (Hordeum vulgare L.)

Çakır¹,

Gupta²,

Platz³

et al. 2003

Aust. J. Agric. Res.

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“…A chi-square test was used to analyse the segregation pattern and determine the genes that control both EGMS. The chi-square test for fixed ratios was applied (Gomez and Gomez 1984, p. 464, Yang 1997), with the chi-square value calculated as: …”

Section: Methodsmentioning

confidence: 99%

Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice

El-Namaky¹,

Oort

2017

Rice

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BackgroundThere is still limited quantitative understanding of how environmental factors affect sterility of Environment-conditioned genic male sterility (EGMS) lines. A model was developed for this purpose and tested based on experimental data from Ndiaye (Senegal) in 2013-2015. For the two EGMS lines tested here, it was not clear if one or more recessive gene(s) were causing male sterility. This was tested by studying sterility segregation of the F2 populations. ResultsDaylength (photoperiod) and minimum temperatures during the period from panicle initiation to flowering had significant effects on male sterility. Results clearly showed that only one recessive gene was involved in causing male sterility. The model was applied to determine the set of sowing dates of two different EGMS lines such that both would flower at the same time the pollen would be completely sterile. In the same time the local popular variety (Sahel 108, the male pollen donor) being sufficiently fertile to produce the hybrid seeds. The model was applied to investigate the viability of the two line breeding system in the same location with climate change (+2oC) and in two other potential locations: in M’Be in Ivory Coast and in the Nile delta in Egypt.ConclusionsApart from giving new insights in the relation between environment and EGMS, this study shows that these insights can be used to assess safe sowing windows and assess the suitability of sterility and fertility period of different environments for a two line hybrid rice production system.

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Hybrid Rice: Genetics, Breeding, and Seed Production

Yuan

1999

Plant Breeding Reviews

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Untitled

Cited by 37 publications

References 18 publications

Mapping and validation of the genes for resistance to Pyrenophora teres f. teres in barley (Hordeum vulgare L.)

Mapping and validation of the genes for resistance to Pyrenophora teres f. teres in barley (Hordeum vulgare L.)

Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice

Hybrid Rice: Genetics, Breeding, and Seed Production

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