Genetic Resources and Crop Evolution最新文献

{"title":"Genome-wide identification and expression of Oryza sativa haloacid dehalogenase genes associated with oxadiazon metabolism","authors":"Zhao Jie Chen, Ya Nan Qu, Jun Jin Lu, Si Ying Li, Gan Ai, Xu Zhen Shi, Li Qing Zeng, Xiao Liang Liu, Dan Lu","doi":"10.1007/s10722-024-02111-2","DOIUrl":"https://doi.org/10.1007/s10722-024-02111-2","url":null,"abstract":"<p>Plant haloacid dehalogenases (HADs) comprise a superfamily of proteins that facilitate the hydrolysis and dehalogenation processes for the detoxification and metabolism of organic contaminants. However, it remains entirely unknown how harmful agrochemicals stimulate <i>HAD</i> production in rice. In this study, the expression of 37 <i>HAD</i>-coding genes is revealed and 4 <i>HAD</i>-differentially expressed genes (DEGs) are identified in oxadiazon-treated rice transcriptome datasets. Chromosomal location and collinearity analyses show that 37 <i>HAD</i> expression genes are unevenly distributed on 12 rice chromosomes. Although these 37 <i>HAD</i> genes do not exhibit intraspecific collinearity, 5 and 25 rice <i>HAD</i> genes demonstrate collinearity relationships with <i>Arabidopsis </i>and soybean, respectively. However, only one DEG (<i>Os05g0457800</i>) shows a collinearity relationship with <i>Arabidopsis</i> and soybean. In addition, these rice <i>HAD</i> genes (including four <i>HAD</i> DEGs) exhibit a range of gene structures, cis-elements, motif compositions, and conserved domains that allow them to encode a range of biotic and abiotic stress responses. A docking analysis between oxadiazon and four <i>HAD</i> DEGs reveals amino acid residues implicated in oxadiazon binding. <i>HAD</i> activity in rice roots and shoots is found to be stimulated when 0.05–0.25 mg L⁻¹ oxadiazon stress is applied, which is 2- and 9.2-fold higher than the control, respectively. These findings show that these <i>HAD</i> genes respond effectively to oxadiazon stress and comprise a set of candidate genes (especially these four <i>HAD</i> DEGs) for the further characterization of pesticide metabolism and degradation.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"85 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vitis species for stress tolerance/resistance","authors":"Arif Atak","doi":"10.1007/s10722-024-02106-z","DOIUrl":"https://doi.org/10.1007/s10722-024-02106-z","url":null,"abstract":"<p>Many wild plant species are actually true treasures of our world. The value of these treasures is better understood today and many wild species are used for different purposes. Also <i>Vitis</i> species are among the most important species with their ancient history. China and North America are the native ranges of many <i>Vitis</i> species that survive to the present day, most of which have survived by natural selection. These species have attracted the attention of plant breeders for many years due to their resistance to various biotic and abiotic stress conditions, and they have used these species to develop new cultivars. In parallel with the developments in the field of biotechnology, interspecific hybrid genotypes obtained in breeding research for resistance to different stress conditions can be obtained in accordance with the targets in a much shorter time. In these investigations, gene regions in <i>Vitis</i> species with resistance genes were transferred to new hybrid genotypes. Additionally, these species have been used as parents in many breeding programs in different countries due to their resistance to biotic stress conditions, especially fungal diseases. Similar breeding research has been carried out on tolerance to abiotic stress conditions, and interspecific cross-breeding have been made to develop hybrid genotypes that are more tolerant to many abiotic stress conditions. In recent years, resistance and high-quality wine and table grape cultivars obtained from rossbreeding have begun to be used in production. As a result, newly developed interspecific hybrid grapes can be grown with much lower production costs in accordance with the sustainable viticulture model.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"97 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of genetic diversity and population structure of the Chinese chestnut (Castanea mollissima) by using NR-SSR markers","authors":"Saman Zulfiqar, Muhammad Mahran Aslam, Allah Ditta, Rashid Iqbal, Abd El-Zaher M. A. Mustafa, Mohamed S. Elshikh, Muhammad Uzair, Saltanat Aghayeva, Muhammad Qasim, Sezai Ercisli, Ozhan Simsek, Tolga Izgu, Peng Zhao","doi":"10.1007/s10722-024-02107-y","DOIUrl":"https://doi.org/10.1007/s10722-024-02107-y","url":null,"abstract":"<p>China is the world's top producer of chestnuts. Population research through genetic techniques enhances our understanding of genetic diversity and population structure. Simple sequence repeats (SSRs) are the most extensively used markers in population genetics. In the present study, we evaluated the genetic diversity and genetic structure of natural <i>Castanea mollissima</i> populations with specific objectives including evaluating the geographic pattern of genetic diversity of wild Chinese chestnut; identifying spatial population structure and genetic differentiation between geographic locations; and proposing certain Chinese chestnut wild populations as reservoirs of genetic diversity for conservation. SSRs markers provide relevant and precise information on the dissemination of genetic diversity among populations having different categories of evolutionary drivers. Herein, the paper examines the genetic diversity and population structure of Chinese chestnut (<i>C. mollissima</i>) using nuclear SSRs. We analyzed 252 samples of <i>C. mollissima</i> from 14 populations and 11 different locations via eight multiplex SSR markers. Maps of genetic diversity parameters (e.g., number of alleles or N_A, expected heterozygosity or H_E, and private alleles richness or PAr) are generated through geo-statistical Inverse Distance Weighted (IDW) to construct a synthetic map that, in turn, reveals the population from Qinling-Daba Mountains possessed the highest genetic diversity (N_A = 8.3, H_E = 0.73). The analysis of molecular variance (AMOVA) analysis revealed that 89% of the genetic deviation found in <i>C. mollissima</i> exists within individuals and populations as opposed to 11% among different populations. Analysis of the SSRs using STRUCTURE identified five clusters with mixed population genetic structure by geographical location. Our results provide significant insight into the population structure of <i>C. mollissima</i> in China and present geographical locations of different gene pools to support conservation by identifying reservoirs of genetic diversity. These findings provide useful information related to markers, genetic diversity, and population structure of Chinese chestnuts.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"98 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141932053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of single nucleotide polymorphism (SNP) markers and construction of DNA fingerprinting of Alcea rosea L. based on specific-locus amplified fragment sequencing (SLAF-seq) technology","authors":"Wanqing Deng, Yifeng Li, Xi Chen, Yuanzhi Luo, Yuanzhi Pan, Xiu Li, Zhangshun Zhu, Fangwen Li, Xiaoli Liu, Yin Jia","doi":"10.1007/s10722-024-02099-9","DOIUrl":"https://doi.org/10.1007/s10722-024-02099-9","url":null,"abstract":"<p><i>Alcea rosea</i> L. are herbaceous plants with several cultivars and a wide range of flower types and colors. They are commonly grown for their ornamental value and are widely cultivated worldwide. However, the lack of genetic diversity and effective molecular markers has hindered efforts to improve and identify <i>A. rosea</i> cultivars. In this study, specific-locus amplified fragment sequencing (SLAF-seq) was employed to develop markers for 38 samples of <i>A. rosea</i> (17 samples from Chengdu Botanical Garden, 19 samples from Flower Valley, and 2 samples from wild species) using the <i>Hibiscus syriacus</i> L. genome as a reference for enzyme digestion prediction. A total of 1,345,364 SLAF tags were obtained by high-throughput sequencing, with an average sequencing depth of 31.80X. There were 162,476 polymorphic SLAF tags and a total of 425,098 single nucleotide polymorphism (SNP) markers were discovered and used for phylogenetic tree, population structure, principal component, and genetic diversity analyses. The results showed that relatedness among samples was generally correlated with plant type, flower type, and flower color. At the same time, the population genetic structure and phylogenetic relationships of high-stem <i>A. rosea</i> in the Flower Valley were more complex. Besides, the genetic diversity of the wild species was higher than cultivated species. At last, 26 variant loci were also screened and identified as core markers for DNA fingerprinting for <i>A. rosea</i> identification. The development of SNP markers and the construction of DNA fingerprints in this study provide references for future analyses in <i>A. rosea</i> cultivar identification, genetic diversity, and molecular breeding.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"1 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141884875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutritional evaluation from Nesphostylis bracteata (Syn: Sphenostylis bracteata): potentially important underutilized wild legume of the Northern Western Ghats of India","authors":"Sagar Datir, P. Tetali, Pavan Kumatkar","doi":"10.1007/s10722-024-02101-4","DOIUrl":"https://doi.org/10.1007/s10722-024-02101-4","url":null,"abstract":"<p><i>Nesphostylis bracteata</i> is an endemic, perennial of Faboideae. Locally known as ‘Bhendri’ or ‘Raan Pavata’, the species is an underexploited wild edible legume from the Northern Western Ghats (NWG) of India. According to International Union for Conservation of Nature classification, the species belongs to the Vulnerable category. In the present study, the species was investigated for its potential utilization for human and cattle feed. Young leaves and immature pods were collected from six different locations in the NWG of India. Pod morphological characters, biochemical, and mineral analysis were conducted. Variability was noted in pod length, pod width, pod weight, and number of developing seeds across all the locations. Biochemical analysis revealed that developing seeds contained higher proteins (24%), amino acids (34%), and starch (49%) content compared to leaves and pod peel. Mineral analysis showed that leaves contained the highest amount of calcium (Ca—28,610 ppm), followed by potassium (K—5179 ppm) and magnesium (Mg—4166 ppm). Developing seeds are rich K (13,958 ppm), followed by phosphorous (P—3828 ppm) and Ca (3502 ppm). Pod peel exhibited very high levels of K (11,552 ppm), followed by Ca (3618 ppm) and Mg (1970 ppm). Among micronutrients, sodium (Na), Iron (Fe), and silicon (Si) were present in high amounts. Developing seeds contained the highest concentration of Na (814 ppm) compared to other micronutrients. Pod peel possessed more Na (937 ppm) and Si (450 ppm) compared to other micronutrients. Overall results indicated that <i>N. bracteata</i> has a good nutritional potential which can be further explored for human and animal nutrition. Understanding morphological and biochemical variations will be useful for the conservation, domestication, and breeding of <i>N. bracteata</i>.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"185 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141884804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating salt tolerance in soybean core collection: germination response under salinity stress","authors":"Aditya Gobade, S. Arathi, Shreyash Gijare, Deepak Pawar, Abhinandan S. Patil","doi":"10.1007/s10722-024-02081-5","DOIUrl":"https://doi.org/10.1007/s10722-024-02081-5","url":null,"abstract":"<p>High levels of soil salinity inhibit the growth of legumes such as soybeans, significantly reducing their productivity. This research aimed to assess the salt tolerance of soybean genotypes by evaluating seed germination at varying salt concentrations (100 mM, 150 mM, and 200 mM NaCl) from two seed source locations. A total of 198 soybean genotypes were analyzed post-germination using 10 quantitative traits: germination percentage, seedling fresh weight, seedling dry weight, seedling length, shoot length, root length, seedling vigor index-1, seedling vigor index-2, seedling water content, and salt tolerance. Analysis of variance (ANOVA) results indicated significant differences among treatments across both locations. Principal component analysis revealed that certain quantitative traits were more prominent at different salt concentrations, thus confirming varied responses to salt stress. Correlation analysis demonstrated a positive relationship between germination percentages and growth parameters such as fresh weight, dry weight, and vigor index. The study observed a decline in all quantitative traits as salt concentration increased, highlighting the stress experienced by plants during germination and growth under high salinity conditions. Using K-means clustering, the 198 genotypes were categorized into tolerant, moderately tolerant, moderately susceptible, and susceptible groups. This clustering helped identify genotypes exhibiting high tolerance (≥ 80% germination at 200 mM NaCl) and high susceptibility (≤ 40% germination at 100 mM NaCl) consistently across both seed source locations. Consequently, seven salt-tolerant genotypes (MACS 708, KALITUR, MACS 1037, IC 13050, MACS 1010, PK 1029, and MACS 173) and three salt-sensitive genotypes (HIMSO 1563, EC 391181, and EC 241920) were identified, providing new insights into soybean cultivation under saline conditions.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"21 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141884876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimating genetic diversity among selected wild grapevine genotypes from Southern Turkey by simple sequence repeat (SSR) and inter-Primer Binding Site(iPBS) markers","authors":"Hatice Ikten, Duygu Sari, Ali Sabir, Hasan Meydan, Nedim Mutlu","doi":"10.1007/s10722-024-02102-3","DOIUrl":"https://doi.org/10.1007/s10722-024-02102-3","url":null,"abstract":"<p>The examination of germplasm within grapevine accessions derived from wild genotypes holds significant importance within the grapevine breeding program, particularly in the improving of cultivars and rootstocks. Due to the greater genetic variation present in wild genotypes, there is an increased possibility of possessing the desired features. The objective of this study was to determine the genetic diversity and population genetic structure of 64 grapevine genotypes using inter-primer binding site (iPBS) retrotransposon markers and simple sequence repeat (SSR) markers. A total of 236 bands were generated using iPBS markers, of which 162 bands exhibited polymorphism. A comprehensive assessment was conducted on a total of 126 SSR alleles using the SSR markers, revealing that 91 of these exhibited polymorphisms. Despite the similarity in mean values between polymorphic bands generated by iPBS (6.48) and SSR markers (6.5), the iPBS markers exhibited a greater polymorphism information content (PIC: 0.39) in comparison to SSR markers (0.29). The UPGMA analysis classified the genotypes into two primary groups at a similarity index of 0.62 based on combined data. The rootstocks utilized as points of reference are consolidated inside a singular cluster (A), distinct from both the Mediterranean wild population and cultivars. The comparison of genetic variation, represented by FST values, revealed that the maximum differentiation was observed between subpopulations SP3 and SP5. The wild grapevine population grown in the Southeast Mediterranean Region of Turkey exhibited significant differentiation. Both marker systems employed in this study were highly polymorphic and useful for genetic characterization and mapping of grapevine populations.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"14 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141884874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative study of morpho-physiological responses of wild and cultivated Solanum species to water stress: the case of S. sisymbriifolium and S. macrocarpon","authors":"Ahuéfa Mauricel Kégbé, Kolawolé Valère Salako, Bruno Enagnon Lokonon, Sylvanus Mensah, Kandioura Noba, Achille Ephrem Assogbadjo","doi":"10.1007/s10722-024-02095-z","DOIUrl":"https://doi.org/10.1007/s10722-024-02095-z","url":null,"abstract":"<p>Crop wild relatives are closely related taxa of cultivated crops and are well adapted to a wide range of environmental conditions. With the current global warming and challenges in agriculture and food production, increasing attention must be given to these crop wild species as they can provide genetic resources that may be helpful to address some of the current challenges in agriculture (e.g., adaptation to drought). In this study, we compared the morpho-physiological performances of <i>Solanum macrocarpon</i> and its wild relative <i>Solanum sisymbriifolium</i> under different watering conditions in Benin. Seedlings were grown in plastic pots under shade-house and subjected to low, moderate, and high-water supply (i.e., 25%, 50% and 75%, respectively of the pot holding capacity). Parameters related to seedlings growth, biomass allocation and stomatal density were investigated. Descriptive statistics and linear mixed effect models were used for data analysis. Results revealed highly significant differences of morpho-physiological parameters between wild and cultivated <i>Solanum</i> species along the watering gradient. First, seedlings from the wild relative demonstrated higher morphological growth parameters than seedlings of the cultivated species irrespective of the watering level. Second, the wild relative also showed better performances in terms of biomass allocation and number of stomata, regardless of leaves faces and watering level than the cultivated species. Water stress reduced values of morpho-physiological parameters for both wild and cultivated species. Contrary to our expectations, the wild relative instead of being resistant, was found to also be sensitive to water stress. However, it was found to be more tolerant to drought than the cultivated species, and therefore could be considered when selecting rootstocks for crop improvement.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"46 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding rice blast: investigating biotechnological methods to speed up the development of robust rice cultivars","authors":"Nimra Rajput, Muhammad Usama Younas, Muhammad Qasim, Saima Parveen Memon, Shabana Memon, Magda Abd El-Rahman, Saltanat Aghayeva, Sezai Ercisli, Rashid Iqbal, Shimin Zuo","doi":"10.1007/s10722-024-02091-3","DOIUrl":"https://doi.org/10.1007/s10722-024-02091-3","url":null,"abstract":"<p>The fungus <i>Magnaporthe oryzae</i> is responsible for causing rice blast, which is a significant threat to rice production worldwide. Cultivating resistant cultivars is a crucial and long-lasting method of management. Genetic mapping, including linkage and associative methods and marker-assisted selection, have significantly accelerated the progress of plant breeding efforts against <i>M. oryzae</i>. Simultaneously, advanced genomic editing methods, such as Meganucleases (MNs), Zinc-finger nucleases (ZFNs), Transcription Activator–Effector Nucleases (TALENs), and Clustered Regularly Interspaced Short Palindrome Repeats/CRISPR-associated protein 9 (CRISPR/Cas9), allow for accurate and specific alterations to the genetic code. Furthermore, the alteration of particular genes through transgenics provides an alternative approach. This review article aims to thoroughly analyze the rice blast disease, its cause, and elucidate the potential biotechnological solutions for enhanced rice cultivars that are resistant to blast disease, and enhancing food production in a growing world.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"56 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Yield and growth duration of Maroon rice landraces measured in traditional settings","authors":"Nicholaas M. Pinas, Jerry R. Tjoe Awie, R. Evanne Dongstra, Harro Maat, M. Eric Schranz, Marieke S. van de Loosdrecht, Tinde van Andel","doi":"10.1007/s10722-024-02093-1","DOIUrl":"https://doi.org/10.1007/s10722-024-02093-1","url":null,"abstract":"<p>Rice, the most consumed cereal worldwide, has two domesticated species: Asian and African rice. Commercial cultivars, almost all Asian rice, are mostly selected for high yields. Traditional landraces are often selected for different traits, such as time to maturity or resistance against common stress factors, including bird attacks and poor soils. Maroons, descendants of enslaved Africans in Suriname and French Guiana, cultivate a rich diversity of rice landraces. They categorize landraces into short, medium, and long-maturation and maintain that fast-ripening crops with moderate yields facilitated their flight from enslavement, while once settled in a safe place, there was time for landraces with longer ripening periods and higher yields. Previous authors assumed that all Maroon landraces had low yields (700–1000 kg/ha), but their performance in traditional farming systems had never been investigated. We followed the growth and harvest of 28 Maroon rice landraces and two commercial cultivars in Maroon farmer fields, using traditional farming methods, at three locations. We show that, in farmer-managed fields, Maroon rice can yield 2600 kg/ha (average 1665 kg/ha), without any agrochemicals or machinery. Contrastingly, the commercial cultivars in Maroon farmer fields had a low yield (625–1205 kg/ha), partly due to bird predation. The maturation time varied between 110 and 183 days, but the three Maroon maturation categories showed significant overlap. Our study indicates that Maroon rice performance can only be fairly evaluated if measurements are taken in traditional Maroon farming systems, since this is the environment in which these landraces were originally selected.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":"50 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}