Unlock instant, AI-driven research and patent intelligence for your innovation.

Gene GFD2 for regulating and controlling grain size and filling of rice and application of gene GFD2

A technology for regulating genes in rice grains, applied in the fields of application, genetic engineering, plant gene improvement, etc., can solve the problems of unclear regulation mechanism and regulation network, and achieve the effect of wide application prospects

Active Publication Date: 2022-07-15
SOUTHWEST UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some important grain shape regulatory genes have been cloned in rice, their regulatory mechanisms and regulatory networks are still unclear

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gene GFD2 for regulating and controlling grain size and filling of rice and application of gene GFD2
  • Gene GFD2 for regulating and controlling grain size and filling of rice and application of gene GFD2
  • Gene GFD2 for regulating and controlling grain size and filling of rice and application of gene GFD2

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be clearly and completely described below through specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

[0035] 1. Discovery and phenotypic identification of mutants

[0036] (1) Discovery of mutants

[0037] The inventors identified a rice grain-filling-deficient mutant (named gfd2) from the ems-treated progeny of the seeds of the rice indica restorer line Jinhui 10 (J10). Mutant gfd2 plants are dwarfed compared to wild type (WT) (see figure 1 A). The grain width increased by 18.8%. In the absence of significant differences in grain length and grain thickness, gfd2 should have been an ideal high-yielding germplasm resource, but the applicant found that the thousand-g...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of rice breeding, and particularly relates to a rice grain size and filling regulation gene GFD2 and application thereof. The invention discloses a rice grain size and filling regulation gene GFD2 for the first time, an amino acid sequence of a protein coded by the gene GFD2 is as shown in SEQ ID No.2, and a nucleotide sequence of a coding region of the gene GFD2 is as shown in SEQ ID No.1. The regulation gene GFD2 not only regulates the grain width by influencing the expression of periodic protein, but also has the function of regulating the filling rate by influencing the activity of sucrose synthase, and has a wide application prospect in rice molecular breeding.

Description

technical field [0001] The invention belongs to the technical field of rice breeding, and in particular relates to a rice grain size and grain filling control gene GFD2 and its application. Background technique [0002] Rice is one of the most important staple food crops in the world and the main source of carbohydrates and nutrients for more than half of the world's population. Improving rice yield is the key to preventing a global food crisis, and thousand-kernel weight is one of the key factors in rice yield (Ren et al. 2020). Rice grain is composed of embryo and endosperm, and the grain weight of rice is determined by the size of the grain pool (ie, the number and size of endosperm cells) and the physiological and biochemical activities of endosperm cells (sucrose metabolism and starch biosynthesis) (Lianget al. 2001). Starch synthesis is a complex process involving a series of biosynthetic enzymes such as adenosine diphosphate glucose pyrophosphatase (AGPase), starch s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07K14/415C12N15/29C12N15/82A01H1/04
CPCC07K14/415C12N15/8261A01H1/04Y02A40/146
Inventor 桑贤春李杨羊王晓雯何光华崔志波胡丹羚
Owner SOUTHWEST UNIV