Arid
DOI10.1007/s10722-013-0025-x
Phenotypic and genetic characterization of Kyrgyz fine-leaved Festuca valesiaca germplasm for use in semi-arid, low-maintenance turf applications
Ma, Yingmei1; Staub, Jack E.2; Robbins, Matthew D.2; Johnson, Paul G.1; Larson, Steven R.2
通讯作者Staub, Jack E.
来源期刊GENETIC RESOURCES AND CROP EVOLUTION
ISSN0925-9864
EISSN1573-5109
出版年2014
卷号61期号:1页码:185-197
英文摘要

Fine-leaved Festuca valesiaca Schleich. ex Gaudin (2n = 2x-4x) is native to heavily-grazed, cold, semi-arid, Asian rangelands. However, its potential for low-maintenance turf applications in the semi-arid western United States and its relatedness to other agriculturally important Festuca species have not been investigated. Therefore, a project was designed to identify F. valesiaca accessions that possess horticultural potential when grown under semi-arid growing conditions and to characterize their relatedness to other Festuca species. In 2008, 12 F. valesiaca accessions originating fromKyrgyzstan and eight US. Festuca and one Lolium cultivar were transplanted as replicated, spaced plants to a field nursery at Blue Creek, Utah. Relative vigor, height, width, total biomass (aboveground dry matter yield), seed weight, and seed number were evaluated between 2009 and 2011. Plant height, width, and total biomass of the F. valesiaca accessions examined were approximately equal to the commercial control, ’Cascade’ (F. rubra L. subsp. commutata Gaudin; 6x; chewings fescue). Plant vigor and seed weight of F. valesiaca accessions PI 659923, PI 659932, W6 30575, and W6 30588 under semi-arid conditions (similar to 300 mm annual precipitation) were significantly (P < 0.05) greater than ’Cascade’. Moreover, principal component analysis based on all traits as loading factors indicated that these 12 F. valesiaca accessions were distinct from a majority of the other Festuca accessions examined. These F. valesiaca accessions produced abundant amounts of small seed, and this seed yield was significantly correlated with total aboveground biomass (dry weight; r(2) = 0.84, P < 0.001), plant height (r(2) = 0.58, P < 0.05), and plant vigor (r(2) = 0.83, P < 0.001). Amplified fragment length polymorphism (AFLP) analysis (1,454 polymorphic bands) was used to characterize F. valesiaca relatedness to other economically important Festuca species. The AFLP-based, neighbor-joining analysis differentiated F. valesiaca accessions from US Festuca cultivars examined, except for ’Durar’ (F. ovina L.; 6x; sheep fescue), to which they had strong genetic affinities. Given their morphological attributes, F. valesiaca PI 659923, W6 30575, PI 659932, and W6 30588 should be considered for use in low-maintenance, semi-arid turf improvement programs in the western US.


英文关键词AFLP genotyping Festuca valesiaca Genetic distance Morphological evaluation Multivariate analysis
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000330298400013
WOS关键词ANATOLIAN REGION ; CHLOROPLAST DNA ; UNITED-STATES ; GROUP POACEAE ; FESCUE ; GRASSES ; PHYLOGENY ; DIVERSITY ; TOLERANCE ; SEQUENCES
WOS类目Agronomy ; Plant Sciences
WOS研究方向Agriculture ; Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/182189
作者单位1.Utah State Univ, Dept Plant Soils & Climate, Logan, UT 84322 USA;
2.ARS, Forage & Range Res Lab, USDA, Logan, UT 84322 USA
推荐引用方式
GB/T 7714
Ma, Yingmei,Staub, Jack E.,Robbins, Matthew D.,et al. Phenotypic and genetic characterization of Kyrgyz fine-leaved Festuca valesiaca germplasm for use in semi-arid, low-maintenance turf applications[J],2014,61(1):185-197.
APA Ma, Yingmei,Staub, Jack E.,Robbins, Matthew D.,Johnson, Paul G.,&Larson, Steven R..(2014).Phenotypic and genetic characterization of Kyrgyz fine-leaved Festuca valesiaca germplasm for use in semi-arid, low-maintenance turf applications.GENETIC RESOURCES AND CROP EVOLUTION,61(1),185-197.
MLA Ma, Yingmei,et al."Phenotypic and genetic characterization of Kyrgyz fine-leaved Festuca valesiaca germplasm for use in semi-arid, low-maintenance turf applications".GENETIC RESOURCES AND CROP EVOLUTION 61.1(2014):185-197.
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