已为您找到该学者20条结果 成果回收站
石春海, Zhi-Xiong Chen Æ Jian-Guo Wu Æ Wo-Na Ding Han-Ming Chen Æ Ping Wu Æ Chun-Hai Shi
Planta (2006) 223: 882-890,-0001,():
-1年11月30日
The floral organs are formed from floral meristem with a regular initiation pattern in angiosperm species. Flowers of naked seed rice (nsr) were characterized by the overdeveloped lemma and palea, the transformation of lodicules to palea-/lemma-like organs, the decreased number of stamens and occasionally extra pistils. Some nsr spikelets contained additional floral organs of four whorls and/or abnormal internal florets. The floral primordium of nsr spikelet is differentiated under an irregular pattern and an incomplete determination. And molecular analysis indicated that nsr was a novel homeotic mutation in OsMADS1, suggesting that OsMADS1 played a distinct role in regulating the differentiation pattern of floral primordium and in conferring the determination of flower meristem. The gain-of-function of OsMADS1 transgenic lines presented the transformation of outer glumes to lemma-/ palea-like organs and no changes in length of lemma and palea, but loss-of-function of OsMADS1 transgenic lines displayed the overdeveloped lemma and palea. Both findings revealed that OsMADS1 played a role in specifying lemma and palea and acted as a repressor of overdevelopment of lemma and palea. Moreover, it was indicated that OsMADS1 upregulated the transcript level of AP3 homologue OsMADS16, using real-time PCR analysis on gain- and loss-of-function of Os- MADS1 transgenic lines.
Rice Æ Flower development Æ MADS-box Æ Naked seed rice
-
33浏览
-
0点赞
-
0收藏
-
0分享
-
75下载
-
0
-
引用
石春海, C.H. SUI, J. ZHU, J.G. WU, X.E. YANG and Y.G. Yu
Plant Breedina 118: 574-576 (1999),-0001,():
-1年11月30日
on heterosis and cytoplasm interaction heterosis were more important for protein content,but endosperm heterosis was only important for lysine content in GE interaction heterosis. It was shown that some indiea hybrid crosses had significant positive heterosis for protein content. Negative heterosis for lysine content was observed in most hybrid crosses.
Oryza sativa-hybrid rice-genetic main effects, genotype
-
51浏览
-
0点赞
-
0收藏
-
0分享
-
109下载
-
0
-
引用
【期刊论文】Analysis of genetic and genotype
石春海, Haizhen Zhang a, Chunhai Shi a, *, Jianguo Wu a, Yuling Ren a, Changtao Li a, Dongqing Zhang b, Yaofeng Zhang b
Plant Science 167(2004)43-48,-0001,():
-1年11月30日
The genetic effects including genetic main and genotype
Quality, Oleic acid, Genetic effect, Heritability, Rapeseed (, Brassica napus L., ),
-
53浏览
-
0点赞
-
0收藏
-
0分享
-
104下载
-
0
-
引用
石春海, C.H. Shi a, *, J.G. Wu a, X.M. Zhang a, b, P. Wu c
Plant Science 163(2002)555-561,-0001,():
-1年11月30日
Identification of genetic main effects and genotype
Indica rice (, Oryza sativa L., ), , Developmental genetics, Quality, Brown rice recovery, Genetic variance, Conditional genetic variance, Heritability
-
44浏览
-
0点赞
-
0收藏
-
0分享
-
96下载
-
0
-
引用
石春海, J.G. WU*, C.H. SHI, X.M. ZHANG, and T. KATSURA
Journal of Genetics, Vol.83, No.2, August 2004,-0001,():
-1年11月30日
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×environment (G×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×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×E interaction heritability, the improvement of content of most essential amino acids under selection would be expected under various environments.
plant breeding, rice (, Oryza sativa L., ), , nutrient quality, essential amino acid, genetic effect, genotype
-
26浏览
-
0点赞
-
0收藏
-
0分享
-
86下载
-
0
-
引用