TY - JOUR
T1 - Analysis of the genetic behavior of some starch properties in indica rice (Oryza sativa L.)
T2 - Thermal properties, gel texture, swelling volume
AU - Bao, J. S.
AU - Sun, M.
AU - Corke, Harold
PY - 2002
Y1 - 2002
N2 - Starch comprises about 90% of milled rice, so that the eating and cooking quality of rice is mainly affected by the starch properties. In the present paper, we analyzed the genetical behavior of gelatinization temperature tested by differential scanning calorimetry (DSC), gel texture, and the swelling volume (SV) of indica rice with an incomplete cross of 4×8 parents. A genetic model which can dissect the effects of triploid seed, the cytoplasm, and the maternal plant on the endosperm traits was used. The results indicated that peak temperature (Tp), conclusion temperature (Tc) and enthalpy (ΔH) were controlled by three types of genetic effects: seed direct (endosperm) effects, cytoplasmic effects and maternal effects. No cytoplasmic effects for the onset temperature (To), hardness and SV, and no maternal effects for cohesiveness were found. The additive variances (VA+VAm) were larger than the dominance variances (VD+VDm) for all the traits except for Tc, which suggested that selection could be applied for the starch properties in early generations. The total narrow-sense heritability for each parameter was over 60%, indicating that selection advances were predictable in the early generations for these traits.
AB - Starch comprises about 90% of milled rice, so that the eating and cooking quality of rice is mainly affected by the starch properties. In the present paper, we analyzed the genetical behavior of gelatinization temperature tested by differential scanning calorimetry (DSC), gel texture, and the swelling volume (SV) of indica rice with an incomplete cross of 4×8 parents. A genetic model which can dissect the effects of triploid seed, the cytoplasm, and the maternal plant on the endosperm traits was used. The results indicated that peak temperature (Tp), conclusion temperature (Tc) and enthalpy (ΔH) were controlled by three types of genetic effects: seed direct (endosperm) effects, cytoplasmic effects and maternal effects. No cytoplasmic effects for the onset temperature (To), hardness and SV, and no maternal effects for cohesiveness were found. The additive variances (VA+VAm) were larger than the dominance variances (VD+VDm) for all the traits except for Tc, which suggested that selection could be applied for the starch properties in early generations. The total narrow-sense heritability for each parameter was over 60%, indicating that selection advances were predictable in the early generations for these traits.
KW - Differential scanning calorimetry
KW - Gel texture
KW - Rice
KW - Starch
KW - Swelling volume
UR - http://www.scopus.com/inward/record.url?scp=0346319013&partnerID=8YFLogxK
U2 - 10.1007/s001220100688
DO - 10.1007/s001220100688
M3 - 文章
AN - SCOPUS:0346319013
SN - 0040-5752
VL - 104
SP - 408
EP - 413
JO - Theoretical And Applied Genetics
JF - Theoretical And Applied Genetics
IS - 2-3
ER -