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Genome-wide identification of LOX gene in four cotton species and revealed its function in callus induction and drought tolerance 4种棉花LOX基因的全基因组鉴定及其在愈伤组织诱导和抗旱性中的作用
IF 2.2
Plant Gene Pub Date : 2025-04-30 DOI: 10.1016/j.plgene.2025.100516
Sani Muhammad Tajo , Zhaoe Pan , K.M. Yusuf , Salisu Bello Sadau , Guowei Lv , Shoupu He , Xiaoli Geng , Xiongming Du
{"title":"Genome-wide identification of LOX gene in four cotton species and revealed its function in callus induction and drought tolerance","authors":"Sani Muhammad Tajo ,&nbsp;Zhaoe Pan ,&nbsp;K.M. Yusuf ,&nbsp;Salisu Bello Sadau ,&nbsp;Guowei Lv ,&nbsp;Shoupu He ,&nbsp;Xiaoli Geng ,&nbsp;Xiongming Du","doi":"10.1016/j.plgene.2025.100516","DOIUrl":"10.1016/j.plgene.2025.100516","url":null,"abstract":"<div><div>Cotton is one of the important fiber crops. Drought is the primary abiotic factor that restricts cotton growth and development and lowers its output. Plant <em>LOX</em> (lipoxygenases) genes catalyze the oxidation of polyunsaturated fatty acids into a variety of functional oxylipins. The LOX gene family has been thoroughly investigated under biotic and abiotic stressors; however, knowledge of their functions on callus induction and regeneration in cotton is still scarce. This study identified 34, 38, 23, and 20 LOX genes in the <em>Gossypium hirsutum</em>, <em>Gossypium barbadense</em>, <em>Gossypium arboreum</em>, and <em>Gossypium raimondii</em>, respectively. The <em>LOX</em> genes were found to be divided into three main categories, 9-LOX, 13-LOX Type I, and 13-LOX Type II. Three accessions of <em>G. hirsutum</em> were used to generate callus from hypocotyl, cotyledon, and shoot tip and we observed that the highest expression of the <em>GhLOX</em> genes were in the hypocotyl callus and most of <em>LOX</em> gene expression was up-regulated in one week callus and decreased in two week and four week callus except in the shoot tip induced callus in Jinmian 498. Virus-induced gene silencing of <em>GhLOX5</em> (Gh_A02G037000) revealed that the growth of the silenced plant was significantly decreased compared to WT. Excised leaf water loss and relative electrolyte leakage levels were increased about 23 % and 12 % in the <em>GhLOX5</em> silenced plant when compared to the WT. Compared to the WT, the silenced plant had significantly higher antioxidant activity (25 % in MDA content and 45 % in H<sub>2</sub>O<sub>2</sub> content). The importance of <em>LOX</em> genes in drought stress and callus induction is clear, but further research is needed to understand their molecular mechanism.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"43 ","pages":"Article 100516"},"PeriodicalIF":2.2,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adaptability of rice to different planting methods: A proof of cumulative transcriptional memory 水稻对不同种植方式的适应性:累积转录记忆的证明
IF 2.2
Plant Gene Pub Date : 2025-04-15 DOI: 10.1016/j.plgene.2025.100515
Karishma Seem , Ayantika Ghosh , Rashmi Varshney , Rakesh Pandey , S. Gopala Krishnan , Trilochan Mohapatra , Suresh Kumar
{"title":"Adaptability of rice to different planting methods: A proof of cumulative transcriptional memory","authors":"Karishma Seem ,&nbsp;Ayantika Ghosh ,&nbsp;Rashmi Varshney ,&nbsp;Rakesh Pandey ,&nbsp;S. Gopala Krishnan ,&nbsp;Trilochan Mohapatra ,&nbsp;Suresh Kumar","doi":"10.1016/j.plgene.2025.100515","DOIUrl":"10.1016/j.plgene.2025.100515","url":null,"abstract":"<div><div>Plenty of water is required for cultivation of rice by transplanting that is challenging its cultivation, particularly on erratic rainfall or under drought. Direct-sown rice (DSR) is emerging as an alternative to transplanted rice (TPR) to save water. Performance of rice under DSR conditions varies greatly. While the molecular basis of adaptive plasticity of rice is subtle, tolerance to environmental stresses in crops is important for sustainable food production/security. The present study explores the molecular basis of adaptive/genetic plasticity in rice grown by different methods of planting, emphasising the concept of cumulative transcriptional memory. Our findings of comparative RNA-seq analysis highlighted differential gene expression with ∼6130 genes exclusively upregulated in the leaf of Nagina22 (N22) in contrast to only ∼3540 genes upregulated exclusively in the leaf of IR64 grown by dry/direct-sowing. In addition, our findings revealed that numerous genes showing upregulation in N22 were detected downregulated in IR64 that highlight distinct molecular strategies adopted by the rice cultivars. By activating diverse sets of genes coding for transcription factors, growth-regulating factors, translational machinery, nutrient-reservoirs, chromatin organization/epigenetic modifications, cell cycle/division, carbohydrate metabolism, etc., N22 adapts more effectively/efficiently to direct-sown conditions. Complementarity between these factors emerged to play important roles in adaptability of N22 to fluctuating environmental conditions. This helps adjust physio-biochemical responses of N22 to multiple abiotic/biotic stresses experienced under DSR conditions. Thus, our findings make a foundation for the development of molecular markers to facilitate varietal development of DSR for improved water productivity and sustainable agriculture.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"43 ","pages":"Article 100515"},"PeriodicalIF":2.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effectiveness of KASP-SNP markers in selecting for grain quality traits in rice KASP-SNP标记在水稻品质性状选择中的有效性
IF 2.2
Plant Gene Pub Date : 2025-04-12 DOI: 10.1016/j.plgene.2025.100503
Maxwell Darko Asante , Kirpal Agyemang Ofosu , Felix Frimpong , Deladem Kwami Alphonso , Elizabeth Nartey , Agyei Elvis Obeng , Ralph K. Bam , Daniel D. Gamenyah , Priscilla F. Ribeiro , William Manilal
{"title":"Effectiveness of KASP-SNP markers in selecting for grain quality traits in rice","authors":"Maxwell Darko Asante ,&nbsp;Kirpal Agyemang Ofosu ,&nbsp;Felix Frimpong ,&nbsp;Deladem Kwami Alphonso ,&nbsp;Elizabeth Nartey ,&nbsp;Agyei Elvis Obeng ,&nbsp;Ralph K. Bam ,&nbsp;Daniel D. Gamenyah ,&nbsp;Priscilla F. Ribeiro ,&nbsp;William Manilal","doi":"10.1016/j.plgene.2025.100503","DOIUrl":"10.1016/j.plgene.2025.100503","url":null,"abstract":"<div><div>Grain quality is a crucial factor for rice consumers, and as such, it is a major focus for breeders. Phenotyping for grain quality traits can be a laborious and costly process. In this study, we evaluated the effectiveness of KASP-SNP markers in selecting for grain quality traits, including aroma, gelatinization temperature, grain length, grain width, and grain length: width ratio. We phenotyped 300 diverse rice genotypes for these four traits and genotyped them using their respective KASP-SNP markers. A regression analysis of the phenotype on the genotype was performed. The markers associated with the <em>fgr-1</em> and <em>GS3</em> genes explained 97 % and 94 % of the phenotypic variation for aroma and grain length, respectively. Two SNP markers (snpOS00440 and snpOS00441) associated with the <em>GW5/SW5</em> gene each explained 82 % of the phenotypic variation for grain width, which increased marginally to 85 % when combined. However, two markers, snpOS00036 and snpOS00450, for gelatinization temperature explained only 2 % and 25 % of the phenotypic variation, respectively, indicating that these markers were not efficient in predicting this trait. Our findings suggest that the markers associated with aroma (<em>fgr-1</em>), grain length (<em>GS3)</em>, and grain width (<em>GW5/SW5</em>) are highly efficient and reliable for marker-assisted selection.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"43 ","pages":"Article 100503"},"PeriodicalIF":2.2,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genome-wide association of root growth angle, seminal root numbers, and leaf area in the synthetic hexaploid wheat diversity panel 合成六倍体小麦多样性面板中根生长角、种子根数和叶面积的全基因组关联
IF 2.2
Plant Gene Pub Date : 2025-04-11 DOI: 10.1016/j.plgene.2025.100507
Maria Khalid , Zoya Khalid , Zubair Ahmed , Lee Hickey , Awais Rasheed , Alvina Gul , Rabia Amir
{"title":"Genome-wide association of root growth angle, seminal root numbers, and leaf area in the synthetic hexaploid wheat diversity panel","authors":"Maria Khalid ,&nbsp;Zoya Khalid ,&nbsp;Zubair Ahmed ,&nbsp;Lee Hickey ,&nbsp;Awais Rasheed ,&nbsp;Alvina Gul ,&nbsp;Rabia Amir","doi":"10.1016/j.plgene.2025.100507","DOIUrl":"10.1016/j.plgene.2025.100507","url":null,"abstract":"<div><div>A lack of understanding about the variations in root number, root angle, and leaf area contributes to inability of wheat withstand drought stress during seedling stage. This discrepancy hinders the development of drought-tolerant wheat varieties. We aimed to evaluate germplasm at seedling stage to find association between markers and traits. We characterized a collection of synthetic hexaploid wheat for root angle, seminal root numbers, and early vigor and identified loci associated with these traits using a 50 K SNP array and genotyping-by-sequencing (GBS) platforms. In total, 39 marker-trait nucleotides (QTNs) were associated with LA, RA, and RN distributed over 10 wheat chromosomes. Out of these, 11 QTNs were associated with LA, 15 QTNs were associated with RA, and 13 QTNs were associated with RN.LA showed a negative correlation with RN and a poor correlation with RA. The phenotypic values of synthetic hexaploid wheat accessions with a higher frequency of favorable alleles have been found to increase. Therefore, prioritizing the use of these synthetic wheat varieties in wheat breeding programs can be beneficial for improving root system architecture (RSA) and early vigor. These preliminary findings can be useful for pre-breeding efforts aimed at enhancing wheat adaptability to drought stress conditions.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"43 ","pages":"Article 100507"},"PeriodicalIF":2.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular marker assisted gene stacking for multiple diseases resistance in an elite rice cultivar, BRRI dhan48 水稻优良品种BRRI dhan48的分子标记辅助基因堆叠研究
IF 2.2
Plant Gene Pub Date : 2025-04-10 DOI: 10.1016/j.plgene.2025.100505
Mohammad Abdul Latif, Omar Kayess, Rakibul Hasan, Lutfur Rahman
{"title":"Molecular marker assisted gene stacking for multiple diseases resistance in an elite rice cultivar, BRRI dhan48","authors":"Mohammad Abdul Latif,&nbsp;Omar Kayess,&nbsp;Rakibul Hasan,&nbsp;Lutfur Rahman","doi":"10.1016/j.plgene.2025.100505","DOIUrl":"10.1016/j.plgene.2025.100505","url":null,"abstract":"<div><div>Blast and bacterial blight (BB) pose a significant threat to rice production. To enhance resistance to blast and BB, we employed marker-assisted backcross breeding to introgress the resistance genes into the genetic background of BRRI dhan48. The resistant (R) genes <em>Pi9</em>, <em>Pb1</em>, <em>Xa4</em>, <em>xa13</em>, and <em>Xa21</em> were introgressed from Pi9-US2, Pb1-US2, and IRBB58, respectively. The <em>Pb1</em> gene strengthens blast resistance in rice by interacting with WRKY45 transcription factor to modulate salicylic acid and phytoalexin pathways, while the <em>Pi9</em> gene triggers a signaling cascade involving reactive oxygen species (ROS) production and hormones like jasmonic acid and ethylene activation to enhance defense responses. <em>Xa4</em> strengthens the cell wall via WAK (cell wall-associated kinase) protein, hindering pathogen invasion, <em>xa13</em> disrupts SWEET (Sugar Will Eventually be Exported Transporter) protein function to limit sugar availability for <em>Xanthomonas oryzae</em> pv. <em>oryzae</em> (Xoo). <em>Xa21</em> triggers mitogen-activated protein kinases (MAPKs)-mediated signaling cascades, leading to the activation of WRKY transcription factors that suppress bacterial proliferation. For that, triple cross was made, followed by repeated backcrosses, self-pollinations, and marker-assisted selection to generate BC<sub>3</sub>F<sub>5</sub> progeny. Chi-square analysis of 380 BC<sub>3</sub>F<sub>2</sub> individuals confirmed a monogenic inheritance pattern for blast and BB resistance traits. Finally, we selected 32 advanced lines, and among them nineteen lines possessed all these 5 R genes, i.e., <em>Pi9</em>, <em>Pb1</em>, <em>Xa4</em>, <em>xa13</em>, and <em>Xa21</em><sub><em>,</em></sub> while eight lines consisted of 4 R genes in different combinations. The disease rating of the advanced lines varied from 0 to 5 for both blast and BB diseases, while BRRI dhan48 had a disease rating ranging from 7 to 9. The lines G10, G25, G16, G31, G9, G2, and G20 demonstrated significantly higher grain yield (7.73, 7.72, 7.70, 7.65, 7.64, 7.59, and 7.58 t ha<sup>−1</sup>, respectively) than the parent (7.00 t ha<sup>−1</sup>). Investigation of marker trait association showed that molecular markers were negatively linked with blast and BB diseases. So, gene introgression by marker-assisted backcrossing (MABB) offers a robust and efficient way to identify and validate candidate genes with high precision for the development of durable, resistant rice breeding lines. These multiple disease resistant advanced lines may use as a potential genetic stock or incorporate with other desired genes for ensuring sustainable rice production under changing climatic conditions.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"42 ","pages":"Article 100505"},"PeriodicalIF":2.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Segregation distortion and linkage analysis in F2 populations of pumpkin (C.Moschata Duch) 南瓜(C.Moschata Duch) F2居群分离畸变及连锁分析
IF 2.2
Plant Gene Pub Date : 2025-04-08 DOI: 10.1016/j.plgene.2025.100508
Zixia Zhang, Yanfang Jiang, Hailong Zhu, Ziyao Chen, Zefa Liu
{"title":"Segregation distortion and linkage analysis in F2 populations of pumpkin (C.Moschata Duch)","authors":"Zixia Zhang,&nbsp;Yanfang Jiang,&nbsp;Hailong Zhu,&nbsp;Ziyao Chen,&nbsp;Zefa Liu","doi":"10.1016/j.plgene.2025.100508","DOIUrl":"10.1016/j.plgene.2025.100508","url":null,"abstract":"<div><div>F<sub>2</sub> materials derived from a cross between introgression lines B-5 × A-3 were used as mapping population in <em>C. moschata.</em> Duch. Among the 89 genetic markers (ls, yf, and 87 marker alleles) analyzed, 5 markers (5.6 % P&lt;0.01) and 12 markers (13.5 % P&lt;0.01) showed genetic distortion in the F<sub>2</sub> population. Among these segregation distortion genetic markers, 11 genetic markers were skewed to the male parent B-5(64.70 %), 3 genetic markers were skewed to the heterozygote (17.65 %), and 3 genetic markers were skewed to both parents (17.65 %). These segregation distortion genetic markers were in the clusters of tight loci or single markers, which were distributed in 9 different chromosomes with 3 (SDR1, SDR2, and SDR3) hot regions in 3 (LGP2, LGP6, and LGP10) of them. In this research, reasons for segregation distortion were discussed, and the gametophyte selection may be the result of segregation distortion of genetic polymorphic loci.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"43 ","pages":"Article 100508"},"PeriodicalIF":2.2,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Priming-a state of alert against environmental stress challenges in plants 报春花--植物应对环境压力挑战的警戒状态
IF 2.2
Plant Gene Pub Date : 2025-04-06 DOI: 10.1016/j.plgene.2025.100513
Divya Chaudhary , Himanshi Aggarwal , Banpreet Kaur , Himani Agarwal , Arghyabrata Das , Ajay Kumar , Vaibhav Mishra , Prashant Kumar Singh , Naveen Chandra Joshi
{"title":"Priming-a state of alert against environmental stress challenges in plants","authors":"Divya Chaudhary ,&nbsp;Himanshi Aggarwal ,&nbsp;Banpreet Kaur ,&nbsp;Himani Agarwal ,&nbsp;Arghyabrata Das ,&nbsp;Ajay Kumar ,&nbsp;Vaibhav Mishra ,&nbsp;Prashant Kumar Singh ,&nbsp;Naveen Chandra Joshi","doi":"10.1016/j.plgene.2025.100513","DOIUrl":"10.1016/j.plgene.2025.100513","url":null,"abstract":"<div><div>The changing climatic conditions have led many plants to restrict their growth and suppress their yield. In their struggle for survival, plants employ unique strategies that help them grow under extreme weather conditions and challenging biotic interactions. Plants can enhance their tolerance through a key process called priming, which strengthens their immune system's response to stimuli from pathogens, beneficial microbes, chemicals, and abiotic cues. Priming provides long-term stress resistance to plants and is based on a rapid and robust defence response to environmental stress conditions. A milder form of stress or chemicals, such as sodium selenite, melatonin, β-aminobutyricacid, polyamines, calcium, zinc, hydrogen peroxide, hydrogen sulfide and sodium hydrosulphide, are used to preactivate plant defence mechanisms. These chemicals play crucial role in stabilizing plant growth by empowering plants to activate their own defence mechanisms and combat unforeseen stressors. This review primarily explores the role of priming phenomena and the mechanisms that enable plants to withstand stressful environmental conditions in their natural habitat.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"43 ","pages":"Article 100513"},"PeriodicalIF":2.2,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genome-wide characterization of the anthocyanin O-methyltransferases in the cultivated potato 栽培马铃薯花青素o -甲基转移酶的全基因组特征
IF 2.2
Plant Gene Pub Date : 2025-04-03 DOI: 10.1016/j.plgene.2025.100506
Annalisa Staiti , Carmine Fruggiero , Domenico Carputo , Vincenzo D’Amelia , Nunzio D’Agostino
{"title":"Genome-wide characterization of the anthocyanin O-methyltransferases in the cultivated potato","authors":"Annalisa Staiti ,&nbsp;Carmine Fruggiero ,&nbsp;Domenico Carputo ,&nbsp;Vincenzo D’Amelia ,&nbsp;Nunzio D’Agostino","doi":"10.1016/j.plgene.2025.100506","DOIUrl":"10.1016/j.plgene.2025.100506","url":null,"abstract":"<div><div><em>O</em>-methyltransferases (OMTs) are group of enzymes involved in the methylation of various secondary metabolites, including anthocyanins. This secondary modification, together with hydroxylation and glycosylation, affects the chromatic properties, stability and reactivity of these pigments. Meanwhile, no detailed identification or genome-wide analysis of the OMT gene family members in potato (<em>Solanum tuberosum</em>) has been reported. We conducted a genome-wide identification and characterization of potato OMTs, identifying 65 OMT family members. These were characterized based on gene structure, evolutionary relationships, and promoter motifs. Analysis of available gene expression profiles from public databases revealed expression patterns indicative of tissue- and temporal-specificity Finally, we further elucidated expression differences among four selected OMT-encoding genes using potato cell cultures, which represent a smart and gainful alternative for anthocyanin production and deep knowledge about these post-biosynthetic modifications.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"42 ","pages":"Article 100506"},"PeriodicalIF":2.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deciphering the role of small RNAs in the development of empurpled phenotypes in the Gossypium hirsutum mutant HS2 解读小rna在绵棉突变体HS2紫色表型发育中的作用
IF 2.2
Plant Gene Pub Date : 2025-04-03 DOI: 10.1016/j.plgene.2025.100504
Minghua Lv, Ting Deng, Jiahong Cao, Xinyu Zhang, Fangfang Cai, Jun Mei, Dongliang Yu, Yuqiang Sun
{"title":"Deciphering the role of small RNAs in the development of empurpled phenotypes in the Gossypium hirsutum mutant HS2","authors":"Minghua Lv,&nbsp;Ting Deng,&nbsp;Jiahong Cao,&nbsp;Xinyu Zhang,&nbsp;Fangfang Cai,&nbsp;Jun Mei,&nbsp;Dongliang Yu,&nbsp;Yuqiang Sun","doi":"10.1016/j.plgene.2025.100504","DOIUrl":"10.1016/j.plgene.2025.100504","url":null,"abstract":"<div><div>Cotton fibers are among the most important natural fibers worldwide. Developing natural colored cotton (NCC) varieties is crucial for cotton fiber utilization due to their eco-friendly properties. Manipulation of anthocyanin synthesis is an effective strategy for creating novel NCCs. Our previous research revealed enhanced anthocyanin accumulation in an empurpled <em>Gossypium hirsutum</em> mutant, <em>HS2</em>, but the regulatory mechanism has not been fully elucidated. In this study, we employed an integrated analysis of RNA sequencing, small RNA (sRNA) sequencing, and degradome sequencing to assess the expression patterns and potential roles of sRNAs in the development of the empurpled phenotype in <em>HS2</em>. Our findings revealed that the expression profiles of sRNAs are highly similar between the wild type and the mutant, with only 11 miRNAs and 761 siRNAs showing significant expression variation. Eight miRNAs and one siRNA exhibited inverse regulation with their targets, which were not directly involved in regulating anthocyanin biosynthesis. Notably, degradome data analysis identified interactions between miR395 and ATP sulfurylase genes (<em>APS1</em> and <em>APS3</em>). Further assessment determined down-regulation of miR395 and up-regulation of <em>APS</em> genes in <em>HS2</em>, as well as the enhanced biosynthesis of cysteine and glutathione. These results suggest that miRNA mediated post-transcriptional regulation might not be the primary mechanism driving anthocyanin enhancement in <em>HS2</em>. Instead, the miR395-<em>APS</em> modules are possibly involved in modulating cellular processes to cope with the increased anthocyanin levels. Overall, this study deepens our understanding of the molecular mechanisms underlying the empurpled phenotype in <em>HS2</em> and facilitates its future use in NCC breeding.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"42 ","pages":"Article 100504"},"PeriodicalIF":2.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genome-wide association study of tea plant based on SLAF-seq revealed SNP variations regulating timing of bud flush 基于slf -seq的茶树全基因组关联研究揭示了调节花蕾绽放时间的SNP变异
IF 2.2
Plant Gene Pub Date : 2025-04-03 DOI: 10.1016/j.plgene.2025.100511
Xiaozeng Mi , Dahe Qiao , Yanlin An , Chun Yang , Kaiqin Lin , Congling Peng , Juan Chen
{"title":"Genome-wide association study of tea plant based on SLAF-seq revealed SNP variations regulating timing of bud flush","authors":"Xiaozeng Mi ,&nbsp;Dahe Qiao ,&nbsp;Yanlin An ,&nbsp;Chun Yang ,&nbsp;Kaiqin Lin ,&nbsp;Congling Peng ,&nbsp;Juan Chen","doi":"10.1016/j.plgene.2025.100511","DOIUrl":"10.1016/j.plgene.2025.100511","url":null,"abstract":"<div><div>As one of the most important agronomic traits of the tea plant (<em>Camellia sinensis</em>), the timing of bud flush (TBF) affects the sales price of tea beverages. Here, we performed specific-locus amplified fragment (SLAF) sequencing and genome-wide association study (GWAS) analysis on 200 offspring of natural hybridization from the ‘Qianmei 601’. A total of 796,294 SLAF tags and 2,324,211 single-nucleotide polymorphisms (SNPs) were obtained by sequencing. The 200 tea germplasms were clustered into four groups by population structure, principal component analysis (PCA) and phylogenetic tree analysis. GWAS identified twelve SNPs loci that were significantly associated with TBF traits. Seven candidate genes associated with TBF were subsequently identified by scanning in the regions within 1 Mb SNP loci. In addition, we found that two candidate genes (<em>ARP</em> and <em>WRKY</em>) were highly expressed in individuals with early TBF. Interestingly, cloning and sequencing of the <em>ARP</em> gene revealed C-G variants between the early and late TBF individuals. Our results provide a theoretical basis for early TBF breeding and functional gene analysis in tea plants.</div></div>","PeriodicalId":38041,"journal":{"name":"Plant Gene","volume":"42 ","pages":"Article 100511"},"PeriodicalIF":2.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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