1) rice black-streaked dwarf virus
水稻黑条矮缩病
1.
Research and control practice on rice black-streaked dwarf virus-borne insects.;
水稻黑条矮缩病传毒昆虫的防治实践与研究
2) Rice black-streaked dwarf virus
水稻黑条矮缩病毒
1.
Genomic Segment 6 of Rice black-streaked dwarf virus Encodes for a Viral Non-structural Protein;
水稻黑条矮缩病毒基因组片段6编码一种非结构蛋白
2.
Sequence Analysis and Prokaryotic Expression of Genomic Segments 8 and 9 of Rice black-streaked dwarf virus Isolated from Maize;
水稻黑条矮缩病毒玉米分离物基因组S8和S9的序列分析及其原核表达
3.
Protein p8 is encoded by the genome segment S8 of Rice black-streaked dwarf virus(RBSDV).
水稻黑条矮缩病毒(RBSDV)p8蛋白由其基因组片段S8编码,根据RBSDV浙江分离物S8序列(AJ297431)设计特异性引物扩增编码p8蛋白N端部分的片段,并亚克隆至原核表达载体pET-32a+,然后以大肠杆菌BL21plysS为宿主菌进行高水平地表达,利用纯化的p8蛋白免疫小鼠,制备了p8蛋白的特异性抗血清。
3) Rice black streaked dwarf virus
水稻黑条矮缩病毒
1.
Rice black streaked dwarf virus (RBSDV) infecting stages were viewed in maize vein cell during its different infection period by electron microscope.
根据水稻黑条矮缩病毒(RBSDV)侵染玉米(Zea mays L。
2.
The rice black streaked dwarf virus (RBSDV) and its RNA were isolated from infected maize plants from Shandong in China.
从我国山东发病的玉米材料中提取水稻黑条矮缩病毒 ,抽提病毒RNA ,经RT PCR ,克隆了编码外层外壳蛋白的基因组组分 10 (S10 )的cDNA ,并进行了序列测定 。
4) RBSDV
水稻黑条矮缩病毒
1.
Genome segments 7 of zhejiang and Hebei isolates of rice black-streaked dwarf virus (RBSDV) were amplified and sequenced.
应用RT PCR技术克隆了 2个水稻黑条矮缩病毒 (riceblack streakeddwarfvirus,RBS DV)中国分离物 ,即浙江分离物和河北分离物的基因组片段S7,并测定了他们的全序列。
2.
Rice black streaked dwarf virus (RBSDV) and its RNA were extracted from infected maize plants grown in China.
从我国发病的玉米材料中提取水稻黑条矮缩病毒 ,抽提病毒RNA ,利用RT PCR等手段 ,获得了病毒基因组第九组分 (S9)cDNA克隆 。
3.
Genome segment S9 s of rice black streaked dwarf virus (RBSDV) of three Chinese isolates were amplified by RT PCR and sequenced, and were found to be consisted of 1 900 nt (RBSDV Zj S9 EMBL accession number: AJ297430), 1 898 nt ( RBSDV Heb S9 EMBL accession number: AJ297429) and 1 900 nt (RBSDV Hub S9 EMBL accession number: AJ291706), respectively.
应用RT PCR技术克隆了 3个中国水稻黑条矮缩病毒 (riceblack streakeddwarfvirus,RBSDV)分离株基因组片段S9,并测定了它们的全序列。
5) rice black-streaked dwarf disease
稻黑条矮缩病
1.
Occurrence of rice black-streaked dwarf disease in late season hybrid rice and its control Strategy;
连晚杂交稻黑条矮缩病的发生危害特点及防治对策
6) rice black-streaked dwarf viral disease
黑条矮缩病
1.
Analysis on the combining ability of resistance to rice black-streaked dwarf viral disease (RBSDV) in indica hybrid rice
籼型杂交水稻黑条矮缩病抗性配合力分析
补充资料:水稻矮化育种(rice breeding for semidwarfnese)
水稻矮化育种(rice breeding for semidwarfnese) 以降低秆高、改善株型为主要目标的水稻高产新品种选育工作。自20世纪50年代起,中国的水稻品种改良事业进入了矮化育种的新时期,是世界上选育和推广矮秆稻种最早的国家。 矮秆品种较之高秆品种具有如下优点:(1)植株矮,有效穗较多,谷草比大,产量高;(2)根系活力强,抗拉力大,伤流量大;(3)基部节间短,上位节间被叶鞘紧包,生育后期茎鞘含钾量高,抗倒抗折力强;(4)叶身短而厚,开张角小,在齐穗期和成熟期仍能保持较大的叶面积系数;(5)叶片含氮量高,营养生长期间的茎鞘总糖积累量大,且后期转向籽粒的比例也大。 水稻的矮化是由矮生或半矮生基因所控制的,当然也时有修饰因子的作用。水稻染色体上能发生矮秆隐性突变的基因位点有数十个之多。矮仔占、矮脚仔、低脚乌尖、矮脚南特及其衍生品种,所具有的单一隐性半矮生基因都是sd1。由于sd1的多效性,它非但制约着秆高,而且也造成分蘖的增加和叶片的直立。与sd1非等位的材料中,绝大多数性状很差,如生活力弱、植株太矮、分蘖少、穗伸出度差、灌浆不好、谷粒小等。在育种上并无利用价值。在当前世界上大面积推广应用的矮秆良种间,其矮生基因基本上是等位的,亦即这些品种均具有相同位点的隐性主效半矮生单基因sd1。因此,开发新的水稻矮源并及时加以利用,是避免矮秆良种遗传单一化从而带来遗传脆弱性的重要研究课题。 |
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