【摘 要】
：
水稻苗期低温白化突变是水稻在发育早期对低温胁迫的一种适应性,是一种受发育和温度控制的条件表达,它与其他水稻白化突变有本质的不同.本研究利用便携式叶绿素测量仪测定了
【机 构】
：
四川农业大学水稻研究所,作物基因资源与遗传改良教育部重点实验室,四川省攀枝花学院
论文部分内容阅读
水稻苗期低温白化突变是水稻在发育早期对低温胁迫的一种适应性,是一种受发育和温度控制的条件表达,它与其他水稻白化突变有本质的不同.本研究利用便携式叶绿素测量仪测定了白化时期植株的叶绿素含量和用透射电镜观察了叶绿体的结构变化.结果发现叶绿素平均含量仅为1.2(SPAD),而叶绿体也不能正常发育仅有囊泡状结构.通过与9311的正反交实验及子代的分离表现证明该性状受一个隐性核基因的控制.另外利用SSR分子标记技术将该基因定位在第8染色体上,两侧最近的SSR标记RM5068和RM3702分别距基因0.5～1.1 cM和4.9 cM,基因被定位在约6个cM的区间内.我们将该基因暂时命名为al12.
其他文献
AIM: To evaluate whether folate levels in mucosal tissue and some common methylenetetrahydrofolate reductase (MTHFR) variants are associated with the risk of ga
To elucidate the photosynthetic physiological characteristics and the physiological inherited traits of rice(Oryza sativa L.) hybrids and their parents, physiol
AIM: To determine the prevalence of osteoporosis in a cohort of patients with Crohn's disease (CD) and to identify the relative significance of risk factors for
Plant mitochondrial genes are often transcribed into complex sets of mRNA. To characterize the transcription initiation and promoter structure, the transcript t
Pollution can be aggravated in industrial areas if traffic exhausts are mixed with industrial emissions under high humidity conditions. Plants growing in such e
Loss-of-function ethylene insensitive 2 (EIN2) mutations showed ethylene insensitivity in Arabidopsis,which indicated an essential role of EIN2 in ethylene sign
AIM: To prospectively evaluate the indications, methodology, safety, and clinical impact of double-balloon endoscopy.METHODS: A total of 60 patients with suspec
对来自69个我国地方绵羊品种和8个国外引入品种共计77个个体线粒体DNA控制区长度为75 bp的串联重复序列进行了测序分析.在309个重复序列中检测到28个变异位点,其中7个为具有2
Root-knot nematodes (Meloidogyne spp.) cause major economic damage to numerous crop species around the world. Plant resistance is the most important attribute t
Mammalian and plant Rab1 and Rab2 are small GTPases that regulate vesicle trafficking in the endoplasmic reticulum (ER) to Golgi compartments. Little is known a