TY  - JA
AU  - Jieyun Li
AU  - Awais Rasheed
AU  - Qi Guo
AU  - Yan Dong
AU  - Jindong Liu
AU  - Xianchun Xia
AU  - Xiaoxia Wu
AU  - Zhang,Y.
AU  - He Zhonghu
TI  - Genome-wide association mapping of starch granule size distribution in common wheat
PY  - 2017///
CY  - Amsterdam, Netherlands : 
PB  - Elsevier, 
KW  - Wheat
KW  - AGROVOC
KW  - Genetic structures
KW  - Starch crops
N1  - Peer review; WC
N2  - Starch is a crucial component in wheat endosperm and plays an important role in processing quality. Endosperm of matured wheat grains contains two distinct starch granules (SG), referred to as larger A- and smaller B-granules. In the present study, 166 Chinese bread wheat cultivars planted in four environments were characterized for variation in SG size. A genome-wide association study (GWAS) using the 90 K SNP assay identified 23 loci for percentage volumes of A- and B-granules, and 25 loci for the ratio of A-/B-granules volumes, distributing on 15 chromosomes. Fifteen MTAs were associated with both the percentage volumes of A-, B-granules and the ratio of A-/B-granules volumes. MTAs IWB34623 and IWA3693 on chromosome 7A and IWB22624 and IWA4574 on chromosome 7B associated with the percentage volumes of A- and B-granules consistently identified in multiple environments were considered to be stable. Linear regression analysis showed a significantly negative correlation of the number of favorable alleles with the percentage volumes of A-granules and a significantly positive correlation between the number of favorable alleles and the percentage volumes of B-granules, respectively. The loci identified in this study and associated markers could provide basis for manipulating SG size to obtain superior noodle quality in wheat
UR  - http://libcatalog.cimmyt.org/download/cis/59004.pdf
T2  - Journal of Cereal Science
DO  - https://doi.org/10.1016/j.jcs.2017.08.016
ER  -