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| DOI: | 10.1007/s00122-007-0535-z |
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| Web URL(s): | https://link.springer.com/article/10.1007%2Fs00122-007-0535-z
Last checked: 10/05/2017 |
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| Publication Type:
| Refereed |
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| Author(s): | Studer, Bruno;
Boller, Beat;
Bauer, Eva;
Posselt, Ulrich K.;
Widmer, Franco;
Kölliker, Roland |
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| Author Affiliation: | Studer, Boller, Widmer and Kölliker: Agroscope Reckenholz-Tänikon Research Station ART, Reckenholzstr, Zurich, Switzerland; Bauer and Posselt: State Plant Breeding Institute, University of Hohenheim, Stuttgart, Germany |
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| Title: | Consistent detection of QTLs for crown rust resistance in Italian ryegrass (Lolium multiflorum Lam.) across environments and phenotyping methods |
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| Source: | TAG: Theoretical and Applied Genetics. Vol. 115, No. 1, June 2007, p. 9-17. |
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| Publishing Information: | Berlin, Germany: Springer |
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| # of Pages: | 9 |
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| Related Web URL: | http://www.springerlink.com/content/t258887615215678/
Last checked: 03/28/2012
Notes: Abstract only |
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| Keywords: | TIC Keywords: Breeding program; Disease control; Disease resistance; Forage crops; Gene mapping; Inoculation; Lolium multiflorum; Puccinia coronata var. coronata; Quantitative trait loci; Simple sequence repeats; Turfgrass quality; Yield
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| Abstract/Contents: | "Crown rust, caused by Puccinia coronata f. sp. lolii, is one of the most important diseases of temperate forage grasses, such as ryegrasses (Lolium spp.), affecting yield and nutritional quality. Therefore, resistance to crown rust is a major goal in ryegrass breeding programmes. In a two-way pseudo-testcross population consisting of 306 Lolium multiflorum individuals, multisite field evaluations as well as alternative methods based on artificial inoculation with natural inoculate in controlled environments were used to identify QTLs controlling resistance to crown rust. Disease scores obtained from glasshouse and leaf segment test (LST) evaluations were highly correlated with scores from a multisite field assessment (r = 0.66 and 0.79, P < 0.01, respectively) and thus confirmed suitability of these methods for crown rust investigations. Moreover, QTL mapping based on a linkage map consisting of 368 amplified fragment length polymorphism (AFLP) and simple sequence repeat (SSR) markers revealed similar results across different phenotyping methods. Two major QTLs were consistently detected on linkage group (LG) 1 and LG 2, explaining up to 56% of total phenotypic variance (V p). Nevertheless, differences between position and magnitude of QTLs were observed among individual field locations and suggested the existence of specific local pathogen populations. The present study not only compared QTL results among crown rust evaluation methods and environments, but also identified molecular markers closely linked to previously undescribed QTLs for crown rust resistance in Italian ryegrass with the potential to be applied in marker-assisted forage crop breeding." |
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| Language: | English |
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| References: | 48 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Studer, B., B. Boller, E. Bauer, U. K. Posselt, F. Widmer, and R. Kölliker. 2007. Consistent detection of QTLs for crown rust resistance in Italian ryegrass (Lolium multiflorum Lam.) across environments and phenotyping methods. Theor. Appl. Genet. 115(1):p. 9-17. |
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| DOI: 10.1007/s00122-007-0535-z |
| Web URL(s):
https://link.springer.com/article/10.1007%2Fs00122-007-0535-z
Last checked: 10/05/2017 |
| 
MSU catalog number: b2203373 |
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