Grain chalkiness
WebRice grain shape and nutritional quality traits have high economic value for commercial production of rice and largely determine the market price, besides influencing the global food demand for high-quality rice. In order to understand the genetic components of grain appearance traits in paddy, brown, and head rice, 15 traits were evaluated by using 157 … WebJan 17, 2024 · The effects of the average daily temperature difference and average daily light intensity on superior grain chalkiness were highest at the mid-filling stage (r = −0.644 *~−0.718 **), while the effects on inferior grain chalkiness were highest at the early-filling stage (r = −0.571 *~−0.675 *), complementing and improving the results of ...
Grain chalkiness
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WebJul 2, 2024 · The chalky area of rice grains is often used to evaluate of rice grain starch quality, but the overall effect of high temperatures on grain chalkiness and overall nutrient quality has not been... WebJun 2, 2024 · Findings: We cloned the rice chalkiness gene WCR1 (WHITE-CORE RATE 1), encoding an F-box protein that negatively regulates grain chalkiness. A functional …
WebSep 1, 2009 · The grain chalkiness of rice (Oryza sativa L.), which determines the rice quality and price, is a major concern in rice breeding. Reactive oxygen species (ROS) plays a critical role in regulating rice endosperm chalkiness. Ascorbic acid (Asc) is a major plant antioxidant, which strictly regulates the levels of ROS. ... WebStarch biosynthesis is a complex process underlying grain chalkiness in rice in a genotype-dependent manner. Coordinated expression of starch biosynthesis genes is important for producing translucent rice grains, while disruption in …
WebJun 12, 2014 · Grain chalkiness is a complex trait adversely affecting appearance and milling quality, and therefore has been one of principal targets for rice improvement. Eliminating chalkiness from rice has been a daunting task due to the complex interaction between genotype and environment and the lack of molecular markers. WebOct 2, 2024 · Grain chalkiness and grain shape are two important traits of rice grain quality. Low chalkiness slender grains are preferred by most rice consumers. Here, we dissected two closely linked quantitative trait loci (QTLs) controlling grain chalkiness and grain shape on rice chromosome 8 by substitution mapping.
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WebFeb 22, 2024 · Grain chalkiness, an undesirable trait caused by complex factors, has great negative impacts on the quality and economic value of rice. However, little is known about the regulatory mechanism of grain chalkiness, particularly the effect of endoplasmic reticulum (ER) stress. northborough tax collector maWebApr 1, 2024 · Grain chalkiness is one of important factors affected rice grain quality. It is known that chalkiness is affected by the high temperature during the seed filling period. … how to replate brass itemsWebIdentification of QTLs or genes controlling chalkiness is the prerequisite for molecular breeding in rice. Here, we conducted a genome-wide association study to identify QTLs associated with grain chalkiness including percentage of grains with chalkiness (PGWC) and degree of endosperm chalkiness (DEC) in 450 rice accessions consisting of 300 ... northborough sushinorthborough spiritualist churchWebGrain chalkiness lowers the market value of rice. Alleviating grain chalkiness is the most challenging issue in many rice-producing areas of the world. Nitrogen (N) metabolism has received increasing attention as a result of its relationship with grain chalkiness, although little information is available on the mechanism of N-induced grain chalk. how to replate silverwareWebpreviously characterized a major QTL for grain shape, slender grain on chromosome 7 (SLG7; Zhou et al., 2015), which is allelic to GL7 and GW7 (Wang et al., 2015a,b). Highly-expressed alleles of SLG7/GL7/GW7 produce slender grains with low chalkiness. SLG7 is valuable in breeding because it has few negative effects on grain yield-related traits. northborough tax collectorWebApr 18, 2024 · There were four chalkiness classifications: Perfect (0% = P; no chalkiness), Small (S; 0–15%), Medium (M; 15–40%), and Large (L; over 40%). Additionally, the … northborough tax bill