【摘 要】
：
Hexokinase (HXK) is the first irreversible catalytic enzyme in the glycolytic pathway, which not only provides energy for plant growth and development but also
【机 构】
：
State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple,College o
论文部分内容阅读
Hexokinase (HXK) is the first irreversible catalytic enzyme in the glycolytic pathway, which not only provides energy for plant growth and development but also serves as a signaling molecule in response to environmental changes. However, the evolutionary pattern of the HXK gene family in apple remains unknown. In this study, a total of nine HXK genes were identified in the Malus×domestica genome GDDH13 v1.1. The physiological and biochemical properties, exon-intron structures, conserved motifs, and cis-elements of the MdHXK genes were determined. Predicted subcellular localization indicated that the MdHXK genes were mainly distributed in the mitochondria, cytoplasm, and nucleus. Gene duplication revealed that whole-genome duplication (WGD) and segmental duplication played vital roles in MdHXK gene family expansion. The ω values of pairwise MdHXK genes indicated that this family was subjected to strong purifying selection during apple domestication. Additionally, five subfamilies were classified, and recent/old duplication events were identified based on phylogenetic tree analysis. Different evolutionary rates were estimated among the various HXK subfamilies. Moreover, divergent expression patterns of the MdHXK genes in four source-sink tissues and at five different apple fruit developmental stages indicated that they play vital roles in apple fruit development and sugar accumulation. Our study provides a theoretical basis for future elucidation of the biological functions of the MdHXK genes during apple fruit development.
其他文献
磺胺甲噁唑(sulfamethoxazole,SMZ)是水产养殖中常用的抗菌药。本研究分析了增氧剂过碳酸钠和消毒剂次氯酸钠对SMZ消除规律的影响,明确了SMZ在2种药物的不同添加水平下的消除规律。结果表明:SMZ在40 mg/L过碳酸钠试验组消除效果最显著(P<0.05),过碳酸钠主要通过自身的氧化作用和提高水体pH值来消除水体中残留的SMZ。通过对相应指标均值分布及相关性分析发现,SMZ的消除变化规律与高浓度的过碳酸钠对水体pH的影响有关。在养殖生产中,可以通过添加合适浓度的过碳酸钠,以加快消除养
MS-222是一种广泛使用的鱼类麻醉剂,本研究探讨了MS-222对西伯利亚鲟(Acipenser baerii)稚鱼耗氧率与幼鱼血液生化指标的影响.为探明MS-222麻醉剂在西伯利亚鲟苗种运输和生产
The color of watermelon flesh is an important trait determined by a series of carotenoids.Herein,we used Cream of Saskatchewan(pale yellow flesh)and PI 186490(white flesh)as parental materials for an F2 segregation and initial mapping using the bulked seg
中国水产品质量安全可追溯技术与系统因建设标准不统一、追溯数据易被篡改等问题,影响了追溯体系的应用和推广。为有效发挥追溯技术在保障水产品质量安全中的作用,本研究阐述了中国水产品质量安全可追溯技术与实践现状,分析了区块链应用于水产品追溯的技术可行性,并基于区块链技术分布式存储、去中心化和不可篡改性等特点,设计了水产品质量安全追溯方案架构,阐述了水产品在养殖、加工、流通、消费和监管等环节质量信息全程记录和追溯管理的实现途径,以期为构建基于区块链的水产品质量安全追溯技术与实践提供支持。随着国家工业互联网的建设和水
Anthocyanins are important components in the peel of red pears and contribute to the appearance of the fruit.Melatonin application is known to affect anthocyanin biosynthesis,but the effect of preharvest melatonin application on fruit coloration remains l
中国对于水产品的需求量日益增加,由于水生生物具有很强的重金属富集能力,因此水生生物的重金属富集及人群有关的相关风险评价日益受到人们的关注。本研究对目前国内外相关学者的研究进行总结与分析,讨论了水生生物的重金属污染研究现状、富集及暴露评价等内容,强调了建立地区性的水生生物重金属富集与暴露风险评价的重要性。本研究可为后续水生经济生物对人体健康的风险评价和生态环境保护等方面的相关研究提供更为细致的理论支持,也可为消费者提供更完善的风险评估结果和消费建议。
WTO/TBT-SPS国家咨询中心农业农村部联系点《关于请对韩国有关食品标准与规范拟定修改案的通报提交官方评议意见的函》(农业农村部联系点函〔2021〕19号)收悉.该通报( G/SPS/
Argonaute (AGO) proteins are the core of the RNA-induced gene silencing complex which regulate a wide variety of processes in plants, from organ development to
水产品作为与畜禽肉类具有同等食物地位的动物性食物,具有高蛋白、低脂肪和低热量的特征,在居民食物结构中发挥着重要作用。为研究水产品对动物性食物蛋白质总量的贡献水平,本研究对中国动物性水产品可食率和蛋白质贡献量进行了测算,并与畜禽肉类、蛋奶类等动物性蛋白质贡献量进行比较分析,测算得出水产品整体及各品类水产品的平均可食率、平均蛋白质含量和蛋白质贡献率等相关指标。水产品平均可食率为54.30%,其中,海水产品平均可食率为51.86%,淡水产品平均可食率为56.67%。每100 g水产品可食部的蛋白质含量为16.8
Blast disease caused by the fungus Magnaporthe grisea results in significant yield losses of cereal crops across the world. To date, very few regulatory genes c