Lei Chen, Juan He, Xufeng Wang, Shiru Zhang, Jinkang Pan, Jianxiang Peng, Beixin Mo, Lin Liu
MicroRNA827 (miR827) is functionally conserved among different plant species and displays species-specific characteristics, but the mechanisms by which miR827 regulates phosphate (Pi) starvation tolerance and maize development remain elusive. We found that miR827 selectively targets the Pi transporter genes SPX-MFS1 and SPX-MFS5. miR827 overexpression improved the Pi starvation tolerance, plant architecture and grain yield and quality, whereas miR827 suppression yielded a contrasting phenotype. In addition, we identified a specific long noncoding RNA (lncRNA767) that serves as a direct target and a facilitator of miR827 and can stabilize the SPX-MFS1 and SPX-MFS5 transcripts, leading to their translation inhibition. The orchestrated regulation of SPX-MFS1 and SPX-MFS5 modulates PHR1; 1 and PHR1; 2, which are critical transcription factors in Pi signalling, and thereby affects the expression of downstream Pi starvation-induced genes. Together, these findings demonstrate that miR827, assisted by lncRNA767, enhances SPX-MFS1 and SPX-MFS5 suppression and thus exerts a significant impact on Pi homeostasis and several essential agronomic traits of maize.
{"title":"miR827 orchestrates the regulation of SPX-MFS1 and SPX-MFS5 with the assistance of lncRNA767 to enhance phosphate starvation tolerance and maize development","authors":"Lei Chen, Juan He, Xufeng Wang, Shiru Zhang, Jinkang Pan, Jianxiang Peng, Beixin Mo, Lin Liu","doi":"10.1111/pbi.14469","DOIUrl":"https://doi.org/10.1111/pbi.14469","url":null,"abstract":"MicroRNA827 (miR827) is functionally conserved among different plant species and displays species-specific characteristics, but the mechanisms by which miR827 regulates phosphate (Pi) starvation tolerance and maize development remain elusive. We found that miR827 selectively targets the Pi transporter genes <i>SPX-MFS1</i> and <i>SPX-MFS5</i>. miR827 overexpression improved the Pi starvation tolerance, plant architecture and grain yield and quality, whereas miR827 suppression yielded a contrasting phenotype. In addition, we identified a specific long noncoding RNA (<i>lncRNA767</i>) that serves as a direct target and a facilitator of miR827 and can stabilize the <i>SPX-MFS1</i> and <i>SPX-MFS5</i> transcripts, leading to their translation inhibition. The orchestrated regulation of SPX-MFS1 and SPX-MFS5 modulates PHR1; 1 and PHR1; 2, which are critical transcription factors in Pi signalling, and thereby affects the expression of downstream Pi starvation-induced genes. Together, these findings demonstrate that miR827, assisted by <i>lncRNA767</i>, enhances <i>SPX-MFS1</i> and <i>SPX-MFS5</i> suppression and thus exerts a significant impact on Pi homeostasis and several essential agronomic traits of maize.","PeriodicalId":221,"journal":{"name":"Plant Biotechnology Journal","volume":"53 1","pages":""},"PeriodicalIF":13.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142235490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The cotton genus comprises both diploid and allotetraploid species, and the diversity in petal colour within this genus offers valuable targets for studying orthologous gene function differentiation and evolution. However, the genetic basis for this diversity in petal colour remains largely unknown. The red petal colour primarily comes from C, G, K, and D genome species, and it is likely that the common ancestor of cotton had red petals. Here, by employing a clone mapping strategy, we mapped the red petal trait to a specific region on chromosome A07 in upland cotton. Genomic comparisons and phylogenetic analyses revealed that the red petal phenotype introgressed from G. bickii. Transcriptome analysis indicated that GhRPRS1, which encodes a glutathione S-transferase, was the causative gene for the red petal colour. Knocking out GhRPRS1 resulted in white petals and the absence of red spots, while overexpression of both genotypes of GhRPRS1 led to red petals. Further analysis suggested that GhRPRS1 played a role in transporting pelargonidin-3-O-glucoside and cyanidin-3-O-glucoside. Promoter activity analysis indicated that variations in the promoter, but not in the gene body of GhRPRS1, have led to different petal colours within the genus. Our findings provide new insights into orthologous gene evolution as well as new strategies for modifying promoters in cotton breeding.
棉花属包括二倍体和异源四倍体物种,该属花瓣颜色的多样性为研究正交基因功能分化和进化提供了宝贵的目标。然而,花瓣颜色多样性的遗传基础在很大程度上仍然未知。红色花瓣主要来自 C、G、K 和 D 基因组物种,棉花的共同祖先很可能具有红色花瓣。在此,我们采用克隆作图策略,将红色花瓣性状绘制到陆地棉 A07 染色体上的一个特定区域。基因组比较和系统进化分析表明,红色花瓣表型是从 G. bickii 传入的。转录组分析表明,编码谷胱甘肽 S-转移酶的 GhRPRS1 是红色花瓣的致病基因。敲除 GhRPRS1 会导致花瓣变白且没有红色斑点,而过表达两种基因型的 GhRPRS1 则会导致花瓣变红。进一步的分析表明,GhRPRS1 在运输鹅掌楸素-3-O-葡萄糖苷和青花素-3-O-葡萄糖苷中发挥作用。启动子活性分析表明,启动子(而非 GhRPRS1 基因体)的变异导致了花瓣属中花瓣颜色的不同。我们的研究结果为同源基因的进化提供了新的视角,也为棉花育种中修改启动子提供了新的策略。
{"title":"Natural variations in the Cis-elements of GhRPRS1 contributing to petal colour diversity in cotton","authors":"Wei Hu, Yanli Chen, Zhenzhen Xu, Linqiang Liu, Da Yan, Miaoyang Liu, Qingdi Yan, Yihao Zhang, Lan Yang, Chenxu Gao, Renju Liu, Wenqiang Qin, Pengfei Miao, Meng Ma, Peng Wang, Babai Gao, Fuguang Li, Zhaoen Yang","doi":"10.1111/pbi.14468","DOIUrl":"https://doi.org/10.1111/pbi.14468","url":null,"abstract":"The cotton genus comprises both diploid and allotetraploid species, and the diversity in petal colour within this genus offers valuable targets for studying orthologous gene function differentiation and evolution. However, the genetic basis for this diversity in petal colour remains largely unknown. The red petal colour primarily comes from C, G, K, and D genome species, and it is likely that the common ancestor of cotton had red petals. Here, by employing a clone mapping strategy, we mapped the red petal trait to a specific region on chromosome A07 in upland cotton. Genomic comparisons and phylogenetic analyses revealed that the red petal phenotype introgressed from <i>G. bickii</i>. Transcriptome analysis indicated that <i>GhRPRS1</i>, which encodes a glutathione S-transferase, was the causative gene for the red petal colour. Knocking out <i>GhRPRS1</i> resulted in white petals and the absence of red spots, while overexpression of both genotypes of <i>GhRPRS1</i> led to red petals. Further analysis suggested that <i>GhRPRS1</i> played a role in transporting pelargonidin-3-O-glucoside and cyanidin-3-O-glucoside. Promoter activity analysis indicated that variations in the promoter, but not in the gene body of <i>GhRPRS1</i>, have led to different petal colours within the genus. Our findings provide new insights into orthologous gene evolution as well as new strategies for modifying promoters in cotton breeding.","PeriodicalId":221,"journal":{"name":"Plant Biotechnology Journal","volume":"9 1","pages":""},"PeriodicalIF":13.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marianna Boccia, Kerstin Ploβ, Maritta Kunert, Radhika Keshan, Mustafa Hatam, Veit Grabe, Sarah E. O'Connor, Prashant D. Sonawane
<p>Vitamin D is a lipid-soluble sterol that plays an essential role in human health. Deficiency of this vitamin increases the risk of osteoporosis, hypertension, autoimmune diseases, infectious disease, diabetes and cancer. Vitamin D exists in two major forms: vitamin D<sub>3</sub> (cholecalciferol), mainly found in animal food source, and vitamin D<sub>2</sub> (ergocalciferol), typically present in sundried and ultraviolet-B (UV-B) exposed fungi and yeast (Jäpelt <i>et al</i>., <span>2013</span>). Vitamin D<sub>3</sub> is produced in human skin upon sunlight exposure, where pro-vitamin D<sub>3</sub> (7-dehydrocholesterol; 7-DHC) is converted to vitamin D<sub>3</sub> by UV-B light (290–315 nm). Unfortunately, vitamin D<sub>3</sub> deficiency is common in both children and adults worldwide. Endogenous synthesis of vitamin D<sub>3</sub> in human skin is inhibited by several factors such as melanin presence, sunlight intensity, pollution and geographic location. Therefore, dietary sources are essential for maintaining consistent vitamin D<sub>3</sub> levels. Unfortunately, few dietary sources and supplements naturally contain vitamin D<sub>3</sub> and most of these are animal-based foods (e.g. meat and eggs), which raises concerns about vitamin D<sub>3</sub> levels among those populations that consume low amounts of animal products (Black <i>et al</i>., <span>2017</span>).</p>