Potential of RAPD Markers for Use in the Identification of Creeping Bentgrass Cultivars

Golembiewski, Robert Craig; Danneberger, T. K.; Sweeney, Patricia M.

doi:10.2135/cropsci1997.0011183x003700010036x

Cited by 38 publications

(29 citation statements)

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“…The physiological sensitivity of creeping bentgrass to drought stress causes a reduction of functionality and viability as a turfgrass surface due to leaf wilting, a Emily Merewitz, Faith Belanger, Scott Warnke, Bingru Huang,* and Stacy Bonos ABSTRACT Improvement in the drought tolerance of the cool-season perennial grass species creeping bentgrass (Agrostis stolonifera L.) has significant value within the turfgrass industry. At the canopy level, turf thinning, yellowing, and increased prevalence of other biotic and abiotic stresses are apparent in droughtstressed areas (Fry and Huang, 2004). A multiyear and multienvironment study was performed to identify QTL in a mapping population of creeping bentgrass segregating for phenotypic traits associated with drought tolerance.…”

Section: Researchmentioning

confidence: 99%

Quantitative Trait Loci Associated with Drought Tolerance in Creeping Bentgrass

Merewitz

Belanger²,

Warnke³

et al. 2014

Crop Science

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Improvement in the drought tolerance of the cool‐season perennial grass species creeping bentgrass (Agrostis stolonifera L.) has significant value within the turfgrass industry. Understanding genomic regions associated with quantitative trait loci (QTL) such as drought tolerance will allow for advancement of breeding strategies to identify creeping bentgrass germplasm with improved abiotic stress tolerance. A multiyear and multienvironment study was performed to identify QTL in a mapping population of creeping bentgrass segregating for phenotypic traits associated with drought tolerance. Phenotypic data was collected during two growth chamber studies and 2 yr of a field trial. The phenotypic traits that were measured included turf quality (TQ), relative water content (RWC), canopy temperature depression (CTD), osmotic adjustment (OA), electrolyte leakage (EL), chlorophyll content (CHL), water use efficiency (WUE), and the normalized difference vegetative index (NDVI). Quantitative trait loci were identified for all traits on both parental maps except for OA and EL. Quantitative trait loci were found within all linkage groups except for group 2 in both parents. The linkage group areas that had QTL with a significant amount of overlapping for multiple traits and trials included linkage group 5.2, 7.1, and 7.2 on the drought tolerant parent ‘L‐93’ and groups 4.2 and 7.2 on the drought sensitive parent 7418–3. These and other QTL identified in this study have potential to be used in future studies that aim to more closely identify the genes associated with these QTL areas and for further investigation of their potential for use in marker‐assisted selection practices.

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Section: Researchmentioning

confidence: 99%

Quantitative Trait Loci Associated with Drought Tolerance in Creeping Bentgrass

Merewitz

Belanger²,

Warnke³

et al. 2014

Crop Science

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“…In addition to being used for forage, colonial bentgrass is one of four bentgrass species used in turf applications. Turf-type bentgrass species and cultivars have been differentiated using a range of marker systems including isozymes (Yamamoto & Duich, 1994), leaf proteins (Wilkinson & Beard, 1972), random amplified polymorphic DNA (RAPD) (Golembiewski et al, 1997;Casler et al, 2003), and sequence characterized amplified region (SCAR) (Scheef et al, 2003) markers. No reports exist in the literature describing the diversity and ecogeographic relationships among wild germplasm of colonial bentgrass based on molecular marker techniques.…”

Section: Introductionmentioning

confidence: 99%

Scandinavian colonial bentgrass diversity described by RAPD, variable chlorophyll fluorescence, and collecting site ecogeography

Karlsen

Steiner

2007

Acta Agriculturae Scandinavica, Section B - Soil & Plant Sc

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Scant information is available describing the diversity of colonial bentgrass (Agrostis capillaris L.) accessions, particularly from boreal and sub-polar ecoregions. In this study, we have compared the diversity of 18 Scandinavian accessions with three ecologically diverse accessions from more southern latitudes. Two of three Scandinavian pools overlapped in the humid temperate boreal ecoregion, and a third pool coincided with the Subarctic Continental Boreal ecoregion. The fourth pool comprised the three lower latitude accessions from non-boreal environments. The more northern latitude Scandinavian accessions had greater photosystem II variable fluorescence reappearance ratio (FRR) than the southern accessions, perhaps indicating an adaptive mechanism for these limited growth environments.

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“…The resulting first synthetic generation (Syn1) is subsequently advanced through two or three generations of random mating and the resulting synthetic cultivars are highly heterogeneous populations consisting of individual genotypes (Brummer, 1999;Golembiewski et al, 1997). Genetic diversity among polycross parents may substantially influence the success of a synthetic cultivar through various mechanisms such as heterosis, general combining ability, inbreeding depression and self-incompatibility.…”

Section: Introductionmentioning

confidence: 99%

Marker assisted polycross breeding to increase diversity and yield in perennial ryegrass (Lolium perenne L.)

2005

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In this study, the application of molecular markers to optimise genetic diversity in a polycross breeding program of perennial ryegrass (Lolium perenne L.) was evaluated. The genetic diversity among 98 potential parental plants from three maturity groups (early, intermediate and late flowering) was investigated using amplified fragment length polymorphism (AFLP) markers. For each maturity group, two polycrosses of six parental plants with contrasting levels of genetic diversity were composed. Average genetic diversity among parents selected for narrow polycrosses was 36% lower than among parents selected for wide polycrosses. Diversity within first generation synthetic progenies (Syn1) was proportional to the diversity within the respective parental polycrosses. However, differences were less pronounced with Syn1 progenies from narrow polycrosses showing 16% reduced diversity when compared to Syn1 progenies from wide polycrosses. Multivariate analyses allowed for a clear separation of the six Syn1 progenies based on AFLP markers and demonstrated their genetic distinctness. Evaluation of dry matter yield, date of ear emergence and stem length of Syn1 and Syn2 progenies showed progenies from wide polycrosses to be constantly higher yielding when compared to progenies from narrow polycrosses. On the other hand, there was no significant difference in variability for the two morphological traits between progenies of narrow-and wide polycrosses. The results presented here provide evidence for an efficient application of molecular markers to select genetically diverse polycross parents which resulted in an average yield increase of 3.8%.

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Potential of RAPD Markers for Use in the Identification of Creeping Bentgrass Cultivars

Cited by 38 publications

References 0 publications

Quantitative Trait Loci Associated with Drought Tolerance in Creeping Bentgrass

Quantitative Trait Loci Associated with Drought Tolerance in Creeping Bentgrass

Scandinavian colonial bentgrass diversity described by RAPD, variable chlorophyll fluorescence, and collecting site ecogeography

Marker assisted polycross breeding to increase diversity and yield in perennial ryegrass (Lolium perenne L.)

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