QTL mapping and candidate gene analysis of ferrous iron and zinc toxicity tolerance at seedling stage in rice by genome-wide association study
| العنوان: | QTL mapping and candidate gene analysis of ferrous iron and zinc toxicity tolerance at seedling stage in rice by genome-wide association study |
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| المؤلفون: | Xiaoqian Wang, Michaël Dingkuhn, Shahzad Amir Naveed, Yunlong Pang, Zhikang Li, Jian Zhang, Yun Wang, Julie Pasuquin, Xiuqin Zhao, Kai Chen, Jianlong Xu |
| المصدر: | BMC Genomics, Vol 18, Iss 1, Pp 1-15 (2017) BMC Genomics |
| بيانات النشر: | Springer Science and Business Media LLC, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Candidate gene, QTL, Adaptation, Biological, medicine.disease_cause, 01 natural sciences, F30 - Génétique et amélioration des plantes, GWAS, Marqueur génétique, riz, Genetics, Chromosome Mapping, food and beverages, Zn toxicity, Zinc, Horticulture, Phenotype, Shoot, Research Article, Biotechnology, lcsh:QH426-470, Iron, Phytotoxicité, lcsh:Biotechnology, Quantitative Trait Loci, Oryza sativa, Biology, Quantitative trait locus, Genes, Plant, Oryza, Polymorphism, Single Nucleotide, génomique, Fe toxicity, 03 medical and health sciences, Dry weight, Stress, Physiological, lcsh:TP248.13-248.65, medicine, amélioration génétique, biology.organism_classification, Fer, lcsh:Genetics, 030104 developmental biology, Seedlings, Seedling, Zinc toxicity, H50 - Troubles divers des plantes, Rice, Genome-Wide Association Study, 010606 plant biology & botany |
| الوصف: | Background Ferrous iron (Fe) and zinc (Zn) at high concentration in the soil cause heavy metal toxicity and greatly affect rice yield and quality. To improve rice production, understanding the genetic and molecular resistance mechanisms to excess Fe and Zn in rice is essential. Genome-wide association study (GWAS) is an effective way to identify loci and favorable alleles governing Fe and Zn toxicty as well as dissect the genetic relationship between them in a genetically diverse population. Results A total of 29 and 31 putative QTL affecting shoot height (SH), root length (RL), shoot fresh weight (SFW), shoot dry weight (SDW), root dry weight (RDW), shoot water content (SWC) and shoot ion concentrations (SFe or SZn) were identified at seedling stage in Fe and Zn experiments, respectively. Five toxicity tolerance QTL (qSdw3a, qSdw3b, qSdw12 and qSFe5 / qSZn5) were detected in the same genomic regions under the two stress conditions and 22 candidate genes for 10 important QTL regions were also determined by haplotype analyses. Conclusion Rice plants share partial genetic overlaps of Fe and Zn toxicity tolerance at seedling stage. Candidate genes putatively affecting Fe and Zn toxicity tolerance identified in this study provide valuable information for future functional characterization and improvement of rice tolerance to Fe and Zn toxicity by marker-assisted selection or designed QTL pyramiding. Electronic supplementary material The online version of this article (10.1186/s12864-017-4221-5) contains supplementary material, which is available to authorized users. |
| وصف الملف: | text |
| تدمد: | 1471-2164 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6285bc579f34187236e402cf50c4e63a https://doi.org/10.1186/s12864-017-4221-5 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....6285bc579f34187236e402cf50c4e63a |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14712164 |
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