caa a22 4500 445323701 CHVBK 20180317142713.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10681-010-0260-6 doi (NATIONALLICENCE)springer-10.1007/s10681-010-0260-6 Molecular diversity and association mapping of quantitative traits in Tibetan wild and worldwide originated barley ( Hordeum vulgare L.) germplasm [Elektronische Daten] [Dongfa Sun, Wenbin Ren, Genlou Sun, Junhua Peng] Molecular diversity of 40 accessions of Tibetan wild barley (TB), 10 Syrian (SY), 72 North American (NA), 36 European (EU), 9 South American (SA) and 8 Australian (AU) varieties were characterized using multiple microsatellite loci. The 42 SSR primers amplified 278 alleles across the 175 barley accessions tested in the present study. The average gene diversity for the whole sample was 0.3387 whereas the mean value for the each population was as follows: TB=0.3286, SY=0.2474, EU=0.299, AU=0.2867, NA=0.3138, SA=0.2536. Clustering analysis based on Nei's original genetic distance showed that the EU and NA barley populations were grouped together. The TB population was well separated from the other 5 barley populations. Associations between microsatellite markers and 14 quantitative traits were also investigated. Significant associations were found for 18 microsatellite marker loci. The number of marker loci associated with each trait ranged from one (stem diameter, filled grains per plant, grain weight per plant, length of main spike and awn length) to seven (plant height). The percentage of the total variation explained by each marker ranged from 4.59% (HVM2 associated with plant height) to 17.48% (Bmac90 associated with density of main spike). This study provides candidate markers for further QTL mapping of these traits and for marker-assisted selection. Springer Science+Business Media B.V., 2010 Barley germplasm nationallicence Tibetan wild barley nationallicence Microsatellite nationallicence Molecular diversity nationallicence Association mapping nationallicence Sun Dongfa College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei, China aut Ren Wenbin College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei, China aut Sun Genlou College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei, China aut Peng Junhua Wuhan Botanical Garden/Institute, Chinese Academy of Sciences, 430074, Wuhan, Hubei, China aut Euphytica Springer Netherlands 178/1(2011-03-01), 31-43 0014-2336 178:1<31 2011 178 10681 https://doi.org/10.1007/s10681-010-0260-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-010-0260-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sun Dongfa College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei, China aut NATIONALLICENCE 700 1- Ren Wenbin College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei, China aut NATIONALLICENCE 700 1- Sun Genlou College of Plant Science and Technology, Huazhong Agricultural University, 430070, Wuhan, Hubei, China aut NATIONALLICENCE 700 1- Peng Junhua Wuhan Botanical Garden/Institute, Chinese Academy of Sciences, 430074, Wuhan, Hubei, China aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 178/1(2011-03-01), 31-43 0014-2336 178:1<31 2011 178 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer