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Kalancho? PPC1 is Essential for Crassulacean Acid Metabolism and the Regulation of Core Circadian Clock and Guard Cell Signaling Genes
Crassulacean acid metabolism (CAM) plants oxaloacetate phosphoenolpyruvate carboxylase circadian clock
2024/1/22
Unlike C3 plants, Crassulacean acid metabolism (CAM) plants fix CO2 in the dark using phosphoenolpyruvate carboxylase (PPC; EC 4.1.1.31). PPC combines PEP with CO2 (as HCO3-), forming oxaloacetate tha...
Primary carbohydrate metabolism genes participate in heat-stress memory at the shoot apical meristem of Arabidopsis thaliana
aldolase carbon metabolism heat stress shoot apical meristem thermomemory thermopriming
2023/12/5
In plants, the shoot apical meristem (SAM) is essential for the growth of aboveground organs. However, little is known about its molecular responses to abiotic stresses. Here, we show that the SAM of ...
BBX19 fine-tunes the circadian rhythm by interacting with PSEUDO-RESPONSE REGULATOR proteins to facilitate their repressive effect on morning-phased clock genes
BBX19 circadian clock transcription factors zinc Arabidopsis thaliana
2023/12/1
The core plant circadian oscillator is composed of multiple interlocked transcriptional–translational feedback loops, which synchronize endogenous diel physiological rhythms to the cyclic changes of e...
Conversion between duplicated genes generated by polyploidization contributes to the divergence of poplar and willow
Poplar Willow Polyploidization Duplicated genes Gene conversion
2023/11/28
Gene conversion has an important effect on duplicate genes produced by polyploidization. Poplar (Populus trichocarpa) and willow (Salix brachista) are leading models and excellent green plants in the ...
南京农业大学农学院《Plant Biotechnology Journal》发表万建民院士团队“Fine tuning rice heading date through multiplex editing of the regulatory regions of key genes by CRISPR‐Cas9”（图）
万建民 气候 基因
2024/6/11
2023年11月9日，南京农业大学万建民院士团队在Plant Biotechnology Journal发表了题为“Fine tuning rice heading date through multiplex editing of the regulatory regions of key genes by CRISPR‐Cas9”的研究论文。该研究开发了一种名为High-efficiency ...
南京农业大学农学院《New Phytologist》发表张文利课题组“R‐loops act as regulatory switches modulating transcription of COLD‐responsive genes in rice”（图）
张文利 气候变化 分子机制 作物生长
2023/10/28
随着全球气候变化的不断加剧，低温冻害和冷害已经成为影响农作物生长的一个重要自然胁迫因素。冷胁迫通常影响农作物正常的生长发育进程，严重时导致减产甚至颗粒无收。因此，作物冷应答分子机制研究可为作物耐冷分子育种提供理论参考。植物R-loop在不同的细胞活动中发挥重要作用，包括发育调控和胁迫应答等。然而，在低温敏感型作物如水稻中，R-loop介导冷胁迫应答的分子机制仍鲜有报道。
植物基因组学与新绿色革命论坛：Atypical disease resistance genes across the genome of wheat（2023.10.23日10:00）
植物基因组学 新绿色革命 麦类作物
2023/10/28
植物基因组学与新绿色革命论坛：Atypical disease resistance genes across the genome of wheat（2023.10.23日10:00）。
Expressed genes and their new alleles identification during fibre elongation reveal the genetic factors underlying improvements of fibre length in cotton
棉花 纤维伸长 表达基因簇
2024/4/16
本研究对亲本海7124、中棉所36及47个子代纤维发育5，10和15天的转录组数据分析，鉴定到35420个表达基因，构建了纤维伸长相关动态表达调控网络，其中10366个表达基因在子代中产生新等位基因（ENAs）；进一步鉴定到7个时空特异调控表达基因簇，差异表达分析筛选到105个候选基因，包含15个新等位基因。CRISPR-cas9系统敲除GhMAH1使纤维显著变短。本研究为解析陆海群体纤维长度变异...
Five Rice Seed-Specific NF-YC Genes Redundantly Regulate Grain Quality and Seed Germination via Interfering Gibberellin Pathway
NF-YCs 种子发育 赤霉素 籽粒品质
2023/3/9
NF-YCs are important transcription factors with diverse functions in the plant kingdoms including seed development. NF-YC8, 9, 10, 11 and 12 are close homologs with similar seed-specific expression pa...
A team of scientists at the Whitehead Institute for Biomedical Research and the Broad Institute of MIT and Harvard has systematically evaluated the functions of over 5,000 essential human genes using ...
Identification and Functional Analysis of Two Alcohol Dehydrogenase Genes Involved in Catalyzing the Reduction of (Z)‑3-Hexenal into (Z)‑3-Hexenol in Tea Plants (Camellia sinensis)
乙醇脱氢酶 ADH AsODNs Camellia sinensis
2023/4/19
Alcohol dehydrogenase (ADH) is a vital enzyme in the biosynthesis pathway of six-carbon volatiles in plants. However, little is known about its functions in tea plants. Here, we identified two ADH gen...
Identification of candidate genes for key fibre-related QTLs and derivation of favourable alleles in Gossypium hirsutum recombinant inbred lines with G. barbadense introgressions
海岛棉 基因组组分 遗传作图群体
2024/5/17
该研究以渗入了海岛棉基因组组分的优质种质鲁原343为亲本，构建了包含239个重组自交系的遗传作图群体，利用SLAF标签构建了高密度遗传图谱，结合7个环境的表型数据，共鉴定104个纤维品质和产量性状QTLs，其中66个QTL共定位于19个QTL簇中。该研究团队通过进一步对鲁原343进行全基因组深度测序，解析鲁原343的遗传组成及其对纤维相关性状的遗传贡献，发现来自G. hirsutum races（...
Transcriptome and QTL analyses reveal candidate genes for fiber quality in Upland cotton
棉花 纤维发育 QTL 转录组 表达基因
2024/5/17
本研究基于前期得到的1个F2群体、1个重组自交系群体和2个永久回交群体得到了15个在多群体或者多年分稳定检测的QTL位点。基于转录组测序，在两亲本间发育10天的纤维进行差异基因鉴定，得到了780个差异基因。通过对QTL和转录组结果联合分析，在9个QTL区间内得到31个基因，其中有9个在纤维中优异表达的基因。在这9个基因中，有7个基因在纤维伸长期高量表达，2个基因在纤维次生壁加厚期高量表达。该研究为...
Open-Bud Duplicate Loci Are Identified as MML10s, Orthologs of MIXTA-Like Genes on Homologous Chromosomes of Allotetraploid Cotton
棉花 开发花蕾 ob1基因
2024/5/17
通过图位克隆鉴定了控制开发花蕾的ob1基因，是位于D13染色体上的MIXTA-like MYB基因，解释了ob2位点的因果变异。运用全基因组转录组分析技术，发现ob突变体中部分MYB基因和细胞壁生物发生、毛状体分化、细胞分裂素信号转导和细胞分裂的相关基因受到抑制，花瓣生长可能因此受到抑制。
系统鉴定和分析了棉花SUN家族蛋白，通过病毒诱导的敲除和CRISPR/cas9介导的GbSUN5敲除，发现尽管花粉活力仍然正常，但是其败育率较高。本研究结果表明：SUN3和SUN5在生物学功能上存在差异，在生殖发育中发挥重要作用。