TY - JOUR
T1 - Genetic variation in starch physicochemical properties of Chinese foxtail millet (Setaria italica Beauv.)
AU - Li, Kehu
AU - Zhang, Tongze
AU - Sui, Zhongquan
AU - Narayanamoorthy, Shwetha
AU - Jin, Can
AU - Li, Shunguo
AU - Corke, Harold
N1 - Publisher Copyright:
© 2019
PY - 2019/7/15
Y1 - 2019/7/15
N2 - In this study, 34 Chinese foxtail millet germplasm accessions (cultivars and breeding lines) were characterized for starch physicochemical properties including apparent amylose content, and gel textural, RVA pasting, thermal and retrogradation properties. The relationships among 21 starch parameters were discussed based on correlation analysis and hierarchical cluster analysis. Generally, this set of germplasm presented a surprisingly low genetic diversity in starch properties. The apparent amylose content ranged from 18.3% to 25.3% with a CV value of 5.0%, and gelatinization temperature ranged from 72.1 to 73.8 °C with a CV value of 0.5%. AAC was negatively correlated only with ΔHg (p < 0.01) while GT only had a strong relationship with To and Tc of thermal properties (p < 0.001). The 21 measured starch parameters could be separated into three groups based on cluster analysis. This work should provide useful information for breeding improved quality foxtail millet.
AB - In this study, 34 Chinese foxtail millet germplasm accessions (cultivars and breeding lines) were characterized for starch physicochemical properties including apparent amylose content, and gel textural, RVA pasting, thermal and retrogradation properties. The relationships among 21 starch parameters were discussed based on correlation analysis and hierarchical cluster analysis. Generally, this set of germplasm presented a surprisingly low genetic diversity in starch properties. The apparent amylose content ranged from 18.3% to 25.3% with a CV value of 5.0%, and gelatinization temperature ranged from 72.1 to 73.8 °C with a CV value of 0.5%. AAC was negatively correlated only with ΔHg (p < 0.01) while GT only had a strong relationship with To and Tc of thermal properties (p < 0.001). The 21 measured starch parameters could be separated into three groups based on cluster analysis. This work should provide useful information for breeding improved quality foxtail millet.
KW - Foxtail millet
KW - Genetic diversity
KW - Starch physicochemical properties
UR - http://www.scopus.com/inward/record.url?scp=85064499044&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2019.04.022
DO - 10.1016/j.ijbiomac.2019.04.022
M3 - 文章
C2 - 31002906
AN - SCOPUS:85064499044
SN - 0141-8130
VL - 133
SP - 337
EP - 345
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -