OsMADS17同时增加了大米中的谷数和谷重
Yuanjie Li1,2,3, Sheng Wu1,3, Yongyu Huang1
1Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
科学家们发现了一种基因,COG1 (OsMADS17),通过增加谷物数量和重量来提高大米产量. 这一发现为培育产量更高的水品种提供了新的策略.
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 农业科学 农业科学
背景情况:
- 增加大米产量对于全球粮食安全至关重要.
- 在米育种中,一个常见的挑战是谷物数量和谷物重量之间的权衡.
研究的目的:
- 通过克服谷物数量-重量权衡来识别控制大米产量的基因.
- 阐明调节大米谷物产量的分子机制.
主要方法:
- 基因鉴定和表征 (COG1/OsMADS17). 基因鉴定和表征 (COG1/OsMADS17). 基因鉴定和表征 (COG1/OsMADS17). 基因鉴定和表征 (COG1/OsMADS17). 基因鉴定和表征 (COG1/OsMADS17). 基因鉴定和表征 (COG1/OsMADS17). 基因鉴定和表征 (COG1/OsMADS17).
- 分析5'未翻译区域 (UTR) 删除对翻译效率的影响.
- 研究涉及OsMADS17和OsAP2-39的基因调控网络.
主要成果:
- 在栽培大米中COG1 (OsMADS17) 的5' UTR中65bp的删除同时增加了谷粒数量和重量.
- OsMADS17调节多个基因,包括OsAP2-39,影响谷物产量.
- OsMADS17表达是由OsMADS1直接调节的,形成一个OsMADS1-OsMADS17-OsAP2-39调节通路.
结论:
- OsMADS1-OsMADS17-OsAP2-39通路是大米谷物产量的关键调节者.
- 下调OsMADS17或OsAP2-39可以通过增加谷物数量和重量来提高大米产量.
- 这项研究为培育高产大米品种提供了分子基础.
更多相关视频
05:22Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support
Published on: January 25, 2022
07:43Agrobacterium-Mediated Genetic Transformation, Transgenic Production, and Its Application for the Study of Male Reproductive Development in Rice
Published on: October 6, 2020
相关概念视频
Specific Gravity of Aggregate
Bulk or gross specific gravity is calculated by taking the ratio of the mass of aggregates in the saturated surface-dry state to the total volume that includes both the solids and the voids within the...
Moisture Content and Bulking of Aggregate
When aggregates are exposed to rain or sit in stockpiles, they absorb moisture, which must be...
Responses to Drought and Flooding
Fineness of Cement
Direct...
Fineness Modulus
Consider performing sieve analysis on sand through a set of ASTM sieves. The weight of aggregate retained in each sieve and pan placed at the bottom is recorded, as given in Column B of Table 1.
To determine the fineness modulus of...
Responses to Salt Stress
