Detecting relationships between amylose content and amino acid contents of indica rice with conditional approach.
The relationship between the genetic effects of endosperm, cytoplasm and maternal plant on amylose content (AC) and amino acid contents of indica rice was studied using unconditional and conditional analysis methods. The results indicated that the protein content (PC) and brown rice weight (WBR) could significantly affect the relationships between AC and amino acid contents of rice. The phenotypic and genotypic covariances between AC and amino acid contents were most significantly negative under the interference of PC or WBR, but most of the relationships for the paired traits were not significant after excluding the influence of PC or WBR on AC. For the conditional genetic relationship analysis of different genetic systems including endosperm, cytoplasm and maternal plant, visible changes were found in many genetic correlation components between AC and amino acid content after eliminating the influences of PC, especially, for the endosperm or maternal additive effects, endosperm additive or dominance interaction effects and maternal additive interaction effects. The relationships of the paired traits conditioned on WBR were mainly controlled by the endosperm dominance or additive interaction effects.
Shi
Chun Hai
CH
Department of Agronomy, Zhejiang University, Hangzhou 310029, People's Republic of China. chhshi@zju.edu.cn
Zhu
Qiong Qiong
QQ
Wang
Ke Ming
KM
Ge
Guo Ke
GK
Wu
Jian Guo
JG
Xu
Zhen Ghao
ZG
D000596:Amino Acids / Q000378:metabolism*; D000688:Amylose / Q000378:metabolism*; D018533:Biomass; D005838:Genotype; D008967:Molecular Biology / Q000379:methods*; D012275:Oryza / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism*; D010641:Phenotype
D000596:Amino Acids; D000688:Amylose