| Genetic and genotype x environment interaction effects for the content of seven essential amino acids in indica rice. | |
| | |
MedLine Citation:
|
PMID: 15536256 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
It is necessary for rice breeders to understand the genetic basis of nutrient quality traits of rice. Essential amino acids are most important in determining the nutrient quality of rice grain and can affect the health of people who depend on rice as a staple food. In view of the paucity of genetic information available on essential amino acids in indica rice, we estimated the genetic main effects and genotype x environment (G x E) interaction effects on the content of essential amino acids. Nine cytoplasmic male sterile lines as females and five restorer lines as males were introduced in a North Carolina II design across environments. Estimates of the content of the essential amino acids valine, methionine, leucine and phenylalanine showed that they were mainly controlled by genetic main effects, while the contents of threonine, cysteine and isoleucine were mainly affected by G x E effects. In the case of genetic main effects, both cytoplasmic and maternal genetic effects were predominant for all essential amino acids, indicating that selection for improving essential amino acid content based on maternal performance would be more effective than that based on seeds. The total narrow-sense heritabilities were high and ranged from 0.72 to 0.83. Since general heritabilities for these essential amino acids (except for cysteine) were found to be much larger than G x E interaction heritability, the improvement of content of most essential amino acids under selection would be expected under various environments. Rice varieties such as Zhenan 3, Yinchao 1, T49, 26715, 102 and 1391 should be selected as optimal parents for increasing the content of most essential amino acids, while the total genetic effects from Zhexie 2, Xieqingzao, Gangchao 1, V20, Zuo 5 and Zhenshan 97 were mainly negative and these parents could decrease the contents of most essential amino acids. |
| | |
Authors:
|
J G Wu; C H Shi; X M Zhang; T Katsura |
Related Documents
:
|
3656466 - Essential fatty acid status in isolated closed head injury. 3924106 - Physiologic effects of columbinic acid and its metabolites on rat skin. 12118526 - Congenital microcephaly and seizures due to 3-phosphoglycerate dehydrogenase deficiency... 974016 - Changes in transepidermal water loss and the composition of epidermal lecithin after ap... 6024116 - Studies on human antibodies. v. amino acid composition of antidextrans of the same and ... 1655046 - Role of functional groups of human plasma and luminol in scavenging of naocl and neutro... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of genetics Volume: 83 ISSN: 0022-1333 ISO Abbreviation: J. Genet. Publication Date: 2004 Aug |
Date Detail:
|
Created Date: 2004-11-10 Completed Date: 2004-12-10 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 2985113R Medline TA: J Genet Country: India |
Other Details:
|
Languages: eng Pagination: 171-8 Citation Subset: IM |
Affiliation:
|
Agronomy Department, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, People's Republic of China. jgwu@zju.edu.cn |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Amino Acids
/
analysis* Breeding Environment Genotype Oryza sativa / chemistry*, genetics* |
| Chemical | |
Reg. No./Substance:
|
0/Amino Acids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: REML estimates of genetic parameters of sexual dimorphism for wing and thorax length in Drosophila m...
Next Document: Variation in the relative magnitude of intraspecific and interspecific competitive effects in novel ...