Oil Crop Science最新文献

{"title":"ARC microbial inoculants promote peanut growth and yield while suppressing Aspergillus flavus infection","authors":"Gege Zhang ,&nbsp;Ruinan Yang ,&nbsp;Xiaodi Ma ,&nbsp;Yuxuan Hong ,&nbsp;Ming Li ,&nbsp;Ling Cheng ,&nbsp;Xiaoqian Tang ,&nbsp;Qin Han ,&nbsp;Qi Zhang ,&nbsp;Peiwu Li","doi":"10.1016/j.ocsci.2025.04.002","DOIUrl":"10.1016/j.ocsci.2025.04.002","url":null,"abstract":"<div><div>Peanuts are important oilseed legume crops that are susceptible to contamination by <em>Aspergillus flavus</em> in soil, leading to serious economic losses. Previously, our research team developed the <em>Aspergillus-</em>Rihizobia coupling (ARC) microbial inoculants and found it can reduce <em>A. flavus</em> abundance in the soil and promote efficient nodulation in peanuts. However, the impact of ARC microbial inoculants on different resistant varieties of <em>A</em>. <em>flavus</em> remains unclear. In this study, we screened peanut varieties that were resistant and susceptible to <em>A. flavus</em> and evaluated their nodulation ability and growth performance after ARC microbial inoculants treatment in the field. The results demonstrated that the nodule number and nitrogenase activity of both varieties significantly increased after ARC microbial inoculants treatment, with the highly susceptible variety AH24 showing a greater increase. For photosynthetic parameters, both varieties also increased after ARC microbial inoculants treatment, but the increase was greater in the moderately resistant variety AH1 than in the highly susceptible variety AH24. Finally, we found that the yield and yield-related traits of the moderately resistant variety AH1 were better than those of the highly susceptible variety AH24. After ARC microbial inoculants treatment, the yield traits of both peanut varieties still increased significantly, but the degree of increase of the moderately resistant variety AH1 was smaller than that of the highly susceptible variety AH24. In addition, the abundance of <em>A. flavus</em> in the rhizosphere soil of the two varieties significantly decreased after ARC microbial inoculants treatment, with no significant difference between the varieties. These results indicated that ARC microbial inoculants exert differential effects on the nodulation and growth of different resistant peanut varieties and have a better effect on highly susceptible varieties. These results provide a solid theoretical basis for the efficient use of ARC microbial inoculants in the field of peanuts in the future.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 109-117"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144221653","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}

{"title":"Genome-wide analysis and stress-responsive expression profiling of the LEA (late embryogenesis abundant) gene family in wild peanut","authors":"Jiang Huanhuan ,&nbsp;Chen Qiangbin ,&nbsp;Wang Tong ,&nbsp;Chen Gang","doi":"10.1016/j.ocsci.2024.09.004","DOIUrl":"10.1016/j.ocsci.2024.09.004","url":null,"abstract":"<div><div>Late embryogenesis abundant (LEA) proteins generally accumulate in seeds during the later stages of maturation. Here we studied the LEA genes in two wild peanut species (<em>Arachis duranensis</em> and <em>Arachis ipaensis</em>) in an effort to create a genetic resource for peanut crop improvement. we identified 65 <em>AdLEA</em> and 69 <em>AiLEA</em> genes representing all 8 LEA subfamilies, which were unevenly distributed across 10 peanut chromosomes. The majority of LEA proteins were found to be highly hydrophilic. MEME analysis indicated that LEA gene motifs were conserved within groups, but not between groups. The LEA genes contained a diverse array of stress- and phytohormone-responsive <em>cis</em>-acting elements, with the <em>AdLEA2-20</em> and <em>AiLEA2-20</em> genes containing the greatest number of elements. Both <em>AdLEA2-20</em> and <em>AiLEA2-20</em> were upregulated in response to cold temperatures, drought, salinity, and abscisic acid exposure, although the dynamics were tissue-dependent. This study lays the foundation for future studies on the LEA gene family and abiotic stress in peanut, and our results will be invaluable for the genetic improvement of peanut by characterizing the genetic resources of wild peanut species.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 100-108"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212105","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}

{"title":"The importance of sulphur in oilseed production – A South Asian context","authors":"V. Visha Kumari ,&nbsp;K.A. Gopinath ,&nbsp;M.A. Sarath Chandran ,&nbsp;B. Sunitha ,&nbsp;K. Sriram ,&nbsp;M.A. Ansari ,&nbsp;M.S. Rao ,&nbsp;V.K. Singh","doi":"10.1016/j.ocsci.2025.04.001","DOIUrl":"10.1016/j.ocsci.2025.04.001","url":null,"abstract":"<div><div>Sulphur (S) is essential for the quality of oilseed crops, ranking as the fourth major nutrient after nitrogen (N), phosphorus (P), and potassium (K). While crops need sulphur in slightly lower amounts than phosphorus, maintaining optimum sulphur levels is crucial for oilseed yield and quality. Factors such as sulphur dynamics, impact of deficiency, application methods, and climate change must be addressed to improve agricultural practices. In South Asian countries like India, Pakistan, and Bangladesh, oilseeds are vital to the agricultural economy, supporting food security, livelihoods, and economic growth. However, climate change, marginal land cultivation, and a shift to more profitable crops like wheat and maize have led to a decline in oilseed productivity. Sulphur is particularly important for vital plant functions, including protein synthesis, chlorophyll formation, and resistance to abiotic stress. Proper management of sulphur can significantly enhance the yield, oil content, and seed quality. Sulphur fertilization improves crop resilience to pests, diseases, and environmental stresses, resulting in healthier plants. To optimize oilseed production, best practices for sulphur management like integrated nutrient management, regular soil testing, and the strategic application of sulphur-enriched fertilizers must be adopted. Despite its significance, many South Asian soils suffer from sulphur deficiency due to inadequate replenishment and reliance on high-analysis fertilizers. By enhancing sulphur availability, oilseed producers can significantly increase crop yields, improve oil content, and promote overall plant health, contributing to the agricultural economy and food security in the region. This manuscript aims to evaluate the critical role of sulphur in enhancing the yield, oil quality, and stress resilience of oilseed crops in South Asia.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 118-130"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144221654","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}

{"title":"Plant growth-promoting rhizobacteria on peanut seedlings (Arachis hypogaea L.): Isolation, taxonomical, and functional characterization","authors":"Ezequiel Darío Bigatton ,&nbsp;Ibrahim Ayoub ,&nbsp;María Ángeles Castillejo ,&nbsp;Carolina Merlo ,&nbsp;Carolina Vázquez ,&nbsp;Mariela Valeria Archilla ,&nbsp;Marina Bruno ,&nbsp;María Paula Martín ,&nbsp;Romina Paola Pizzolitto ,&nbsp;Lucas Esteban Dubini ,&nbsp;Enrique Iván Lucini ,&nbsp;Ricardo Javier Haro","doi":"10.1016/j.ocsci.2025.04.003","DOIUrl":"10.1016/j.ocsci.2025.04.003","url":null,"abstract":"<div><div>To improve crop yields, global food production needs sustainable agronomic tools like Plant Growth-Promoting Rhizobacteria (PGPR). Region-adapted PGPR strains are crucial to increasing peanut production. Argentina is the seventh-largest peanut producer, and Córdoba is the main region with 250,000 ​ha (75% of the total sowing area). This study aimed to isolate, identify, and characterize the biocontrol and growth promotion capacity of PGPR strains belonging to the <em>Bacillus</em> and <em>Pseudomonas</em> genera. The strains were tested against <em>Sclerotinia minor</em>, <em>Sclerotium rolfsii</em>, <em>Fusarium verticillioides</em>, and <em>Aspergillus flavus</em> for biocontrol assays. For growth promotion, pot trials used two peanut cultivars, ASEM 400 INTA and Granoleico, under 40% and 60% field capacity under two water regimes. The isolated strains were <em>Bacillus velezensis</em>, <em>B. subtilis</em>, <em>B. tequilensis</em>, <em>B</em>. <em>safensis, B. altitudinis</em>, and <em>Pseudomonas psychrophila</em>. These strains demonstrated <em>in-vitro</em> phosphorus solubilization, nitrogen fixation, ammonification, nitrification, enzyme releasing, phytohormones production, and high biocontrol capacity of over 75%. SC6 and RI3 (both <em>B. velezensis</em>) and P10 (<em>P. psychrophila</em>) exhibited outstanding performance. They significantly promoted peanut root biomass by more than 50% and leaf area by 30%, with increased chlorophyll content index and leaf relative water content, particularly under water stress conditions (40% field capacity). According to the results, RI3, SC6, and P10 could be classified as PGPR, which supports the results obtained in other field studies with these same microorganisms. Future investigations should prioritize the development of industrial formulations to assess their effectiveness in alternative crops and to incorporate them into other agricultural practices.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 87-99"},"PeriodicalIF":0.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146918","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}

{"title":"Interactive effect of potassium and zinc application on oil yield of sunflower","authors":"Farid Hellal,&nbsp;Doaa Abou Basha,&nbsp;Saied El Sayed,&nbsp;Hanan Abdelkader","doi":"10.1016/j.ocsci.2025.03.001","DOIUrl":"10.1016/j.ocsci.2025.03.001","url":null,"abstract":"<div><div>Several initiatives have been made in Egypt to increase the overall production of oil crops, especially sunflower and to close the gap between edible oil production and demand. Field experiments were conducted during the main seasons of 2022 and 2023 ​at the agricultural research station of National Research Centre, Nubaria, Egypt to investigate the effects of potassium nitrate (0, 20, 40, 60 ​kg K₂O fed⁻¹) (fed ​= ​feddan ​= ​2.4 ​ha) and zinc sulfate (0, 25, 50, 75 ​ppm Zn) on growth, oil yield, nutrients components and chemical composition of sunflower. Results indicated that application of potassium nitrate has a promoted effect on chlorophyll content, growth parameters (Head weight, head diameter and 100 seed weight), protein content, oil yield as well as nutrient content under all applied levels. The data also showed that the highest significant increase occurred with the soil application of 40 ​kg fed⁻¹ potassium nitrate combined with 75 ​ppm Zn foliar spray. Meanwhile, the lowest values were obtained at the control treatment. Therefore, the current study detected that potassium soil addition at 40 ​kg K₂O fed⁻¹, besides foliar application with 75 ​ppm Zn are important to improve the growth, macro-micronutrient, seeds and oil productivity of sunflower crops. Oil yield and nutrient content exhibit a strong positive correlation, with a correlation coefficient of 0.903 for N, 0.94 for P, 0.962 for K and 0.966 for Zn. This indicates that a higher nutrient percentage is associated with higher oil content of sunflower. Study underscores the importance of comprehending the interplay between potassium and zinc treatments in sunflower plants to enhance growth, yield, and oil production effectively. Understanding these relationships can lead to optimized cultivation practices and improved outcomes in sunflower farming.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 2","pages":"Pages 79-86"},"PeriodicalIF":0.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143907930","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}

{"title":"A reliable, simple and cost-efficient UPLC-vwd method for simultaneously determining tocopherol and tocotrienol in peanut seeds","authors":"Zekai Tian ,&nbsp;Yue Zhang ,&nbsp;Chenshuo Sun ,&nbsp;Liying Yan ,&nbsp;Yanping Kang ,&nbsp;Dongxin Huai ,&nbsp;Yuning Chen ,&nbsp;Xin Wang ,&nbsp;Qianqian Wang ,&nbsp;Huifang Jiang ,&nbsp;Boshou Liao ,&nbsp;Zhihui Wang ,&nbsp;Yong Lei","doi":"10.1016/j.ocsci.2025.02.002","DOIUrl":"10.1016/j.ocsci.2025.02.002","url":null,"abstract":"<div><div>Vitamin E is an essential micronutrient that is abundant in peanut seeds. However, the absence of a rapid and reliable method for determining its content has impeded advancements in peanut quality improvement. In this study, we developed an efficient ultra-performance liquid chromatography variable wavelength detector (UPLC-vwd) method for quantifying vitamin E content in peanut seeds, capable of detecting four tocopherols and four tocotrienols. Compared to traditional methods, this approach is simpler, more efficient, and highly accurate. By comparing two sample preparation techniques, it was found that slicing better reflects the true vitamin E content than grinding, as it minimizes losses caused by mechanical pressure. The method demonstrated robust stability and accuracy in both repeatability tests and spiked recovery tests, showing no significant differences compared to the national standard method. The study revealed that the cotyledons of peanuts are the primary storage site for vitamin E, being rich in γ- and α-tocopherols, which together account for over 90°% of the total vitamin E content. In contrast, the vitamin E content in the seed coat is considerably lower. Therefore, the optimized detection method minimizes seed coat interference during sample preparation, ensuring the accuracy of the results. In summary, the UPLC-vwd method developed in this study is a promising tool for determining vitamin E content and supports the improvement of peanut quality.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 1","pages":"Pages 70-78"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phenotyping peanut cultivars with contrasting responses to pod rot pathogens","authors":"Jin Li ,&nbsp;Chunjiao Jiang ,&nbsp;Zhen Yang ,&nbsp;Fengjian Liang ,&nbsp;Zhiwei Wang ,&nbsp;Xiuzhen Wang ,&nbsp;Xiushan Sun ,&nbsp;Jing Yu ,&nbsp;Mingjun Zhang ,&nbsp;Chuantang Wang","doi":"10.1016/j.ocsci.2024.11.003","DOIUrl":"10.1016/j.ocsci.2024.11.003","url":null,"abstract":"<div><div>Peanut is a major cash crop in the world. In recent years, peanut pod rot has become increasingly prevalent, resulting in significant yield and quality losses. Resistance breeding is considered a cost-effective approach for managing pod rot. Previous research in the United States identified significant anatomical differences in leaves and shells among peanut cultivars with varying responses to pod rot caused by <em>Pythium myriotylum</em> Drechs. and <em>Rhizoctonia solani</em> Kuhn. However, whether similar anatomical features correlate with resistance to peanut pod rot in Laixi, Qingdao, remained unknown, where the primary causal pathogen for the disease was <em>F. solani</em>. In this study, nine peanut varieties with differing disease reactions to peanut pod rot were planted in the same plots. Paraffin sections of leaves and shells were prepared and stained to evaluate anatomical features, and the main agronomic traits were assessed alongside leaf spot disease ratings. All the four anatomical features, leaf palisade cell number, palisade cell width, index (palisade cell number per mm ​× ​cell width in μm), and shell lignin staining area, were measured before the onset of pod rot and were found to be negatively correlated with pod rot scores. Given the consistent and strong correlation of these anatomical features with pod rot resistance and their high heritability estimates, the pre-existing resistance could be identified even in the absence of the disease, which is particularly valuable for fields where pod rot may not occur every year. This study provided useful anatomical indicators for selecting resistance to peanut pod rot, predominantly caused by <em>F. solani</em>.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 1","pages":"Pages 18-24"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current trends and future directions in avocado oil research: An overview and a bibliometric analysis across two time points","authors":"David Fernando ,&nbsp;Prajona Marbun ,&nbsp;Agustina Ari Murti Budi Hastuti ,&nbsp;Abdul Rohman","doi":"10.1016/j.ocsci.2025.02.003","DOIUrl":"10.1016/j.ocsci.2025.02.003","url":null,"abstract":"<div><div>Avocados, including the peels and seeds, have beneficial nutritional value and can be processed into oils. To understand the trends and promote the use of avocado waste, it is essential to ascertain the scientific contributions, productivity, quality, and gaps in the avocado oil research field. This research identifies the changes in the research trend over the last ten years compared to previous studies. Additionally, this study examines and summarizes the research question, significant study findings, and future directions for avocado oil research through an overview format. Results show that the market for avocado oil has been growing, received greater attention, and been extensively studied in the last 10 ​years ​as opposed to the preceding century. There is more collaborative research on this topic globally from 2014 to 2023 than from 1928 to 2013. The direction of avocado oil research has not changed significantly; rather, it has expanded from the foundational studies and become more focused. Surprisingly, recent advancements indicate a notable increase in the research topic of avocado oil adulteration, implying that such practices have become more prevalent in the last decade compared to earlier periods. Though research hotspots noted that avocado oil is still being tested on animals, such as rats, the use of avocado oil for cosmetic purposes was not emphasized till 1928–2013. Other persisting hotspots include avocado being tried for antioxidant or oxidative stress prevention, insulin resistance prevention, extraction, compositional analysis, and avocado oils being compared alongside other oils.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 1","pages":"Pages 25-43"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of the phytohormone salicylic acid on the salinity thresholds to seed germination and seedling growth in the oilseed Camelina sativa","authors":"Esmaeil Bakhshandeh ,&nbsp;Fatemeh Hosseini Sanehkoori ,&nbsp;Najmeh Mirzaaghpour ,&nbsp;Charlotte E. Seal ,&nbsp;Mozhgan Alinia","doi":"10.1016/j.ocsci.2024.10.002","DOIUrl":"10.1016/j.ocsci.2024.10.002","url":null,"abstract":"<div><div>The oilseed crop <em>Camelina sativa</em> exhibits salinity tolerance, but the effects on early growth stages across a range of different salts and in combination with salicylic acid (SA) have not been thoroughly evaluated. In this study, seeds were germinated in varying concentrations of six salts (NaCl, CaCl₂, ZnCl₂, KCl, MgSO₄, and Na₂SO₄) with or without 0.5 ​mM SA. Using the halotime model, we estimated salt thresholds for germination and parameters of seedling growth. Germination and seedling growth parameters of camelina significantly decreased with increasing salt concentration across all salt types. Salts containing Zn and SO4 were most detrimental to germination and seedling growth. Except for KCl, 0.5 ​mM SA generally reduced the salinity tolerance threshold (Saltb(50)) of camelina. Specifically, Saltb(50) was 21.5% higher for KCl and 16.1%, 25.0%, 54.9%, 21.0%, and 5.6% lower for CaCl₂, NaCl, MgSO₄, Na₂SO₄, and ZnCl₂, respectively, when 0.5 ​mM SA was compared to 0 ​mM SA. Furthermore, camelina seedling growth was consistently more sensitive than germination across all salt types. SA did not significantly enhance germination or seedling growth and was harmful when combined with certain salts or at the germination stage. It can be concluded that both the type of salt and the concentration of SA are as critical as the salt concentration in saline irrigation water.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 1","pages":"Pages 1-8"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic relationship between bacterial wilt resistance and yield components in peanut","authors":"Jianbin Guo,&nbsp;Nian Liu,&nbsp;Huaiyong Luo,&nbsp;Li Huang,&nbsp;Xiaojing Zhou,&nbsp;Weigang Chen,&nbsp;Bolun Yu,&nbsp;Huifang Jiang,&nbsp;Yong Lei,&nbsp;Boshou Liao","doi":"10.1016/j.ocsci.2025.01.001","DOIUrl":"10.1016/j.ocsci.2025.01.001","url":null,"abstract":"<div><div>Bacterial wilt (BW) caused by <em>Ralstonia solanacearum</em> is a wide-spread and serious disease in peanut. To date, this soilborne disease could only be effectively controlled by planting resistant peanut cultivars. However, the relatively lower yield potential of the available BW-resistant peanut cultivars is a key reason restricting productivity in most epidemic regions naturally infested with the pathogen. Even small pods or seeds and low number per plant has been regarded as the key factor for the low yield potential both in BW-resistant peanut germplasm lines and available released cultivars, whether the resistance is closely linked with key yield components remains unclear. In this study, the relationship between pod weight and BW resistance was analyzed by using a recombinant inbred lines (RIL) population derived from a crossing combination between a high yielding cultivar Xuhua 13 and a BW-resistant cultivar Zhonghua 6. From the experiments, it was found that the BW resistance was not significantly correlated with pod number per plant (PNP), hundred pod weight (HPW) and pod weight per plant (PWP) in the RIL population. Based on linkage analysis, the quantitative trait locus (QTL)s related to PNP were identified on A06, A07, A08 and B03. The QTLs for HPW were detected on A05 and A07, and the QTLs for PWP were on A06, A07 and B03. However, the QTL for BW resistance identified on B02. These results indicated that the BW resistance and the pod number per plant as well as pod weight were inherited independently. Two recombined lines (QT0944 and QT1028) with high level BW resistance and large pods (hundred pod weight over 185g) were identified from the RILs, and they possessed the favored alleles of identified QTLs from both parents, which could be used in peanut breeding for high yield and high level disease resistance.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 1","pages":"Pages 64-69"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}