Gene for controlling plant height or upright growth of leaves of rice and application of gene

• Main Authors: QIAO SHENGLONG, SUN SHIYONG, WANG XUELU
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2016
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; NEW PLANTS OR PROCESSES FOR OBTAINING THEM; ORGANIC CHEMISTRY; PEPTIDES; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TRAPPING; VINEGAR; WINE

The invention discloses a gene for controlling the plant height or the upright growth of leaves of rice and application of the gene. The gene RLA1 plays an important role in the signal transduction pathway of rice brassinosteroid and has a CDS sequence represented by SEQ ID NO.1 and an encoded amino acid sequence represented by SEQ ID NO.2. The gene RLA1 of wild Nipponbare is specifically knocked out by virtue of an RNA disturbing technique, and obtained transgenic lines present that the included angles of stem leaves are smaller than the included angles of a wild type and the plant heights are decreased, so that the growth of plant forms of the plants can be controlled by increasing or decreasing the expression quantity of the gene RLA1 by virtue of a gene engineering technique, and therefore, the plant height and the planting density are improved. 本发明公开了种控制水稻株高或叶片直立性发育的基因及其应用，本发明的公开的基因在水稻油菜素甾醇的信号转导途径中起重要作用，其CDS序列为SEQ ID NO.1所示，编码的氨基酸序列为SEQ ID NO.2所示。利用RNA干扰技术特异性的将野生型日本晴的基因敲除掉，所获得的转基因系均表现为茎叶夹角比野生型要小，株高变矮，因此通