Analysis of Seed Phenotypic and Metabolic Characteristics of Diploid and Tetraploid Tartary Buckwheat
作者机构：Key Laboratory of Coarse Cereal ProcessingMinistry of Agriculture and Rural AffairsSchool of Food and Biological EngineeringChengdu UniversityChengdu610106China School of Preclinical MedicineChengdu UniversityChengdu610106China
出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)
年 卷 期：2022年第91卷第9期
页 面：1973-1986页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金：the National Key R&D Program of China(2019YFD1001300,2019YFD1001303) the earmarked fund for China Agriculture Research System(CARS-08-02A)
主 题：Tartary buckwheat diploid tetraploid seed
摘 要：Polyploid plants grow well,are stress tolerant,and are rich in nutrients and bioactive ***,they are useful for improving crop quality and *** this study,we compared the seed characteristics and metabolite profiles of diploid and tetraploid tartary buckwheat,which was developed via an artificially induced chromosome doubling *** length,width,area,and thousand-grain weight were greater for the tetraploid seeds than for the diploid ***,the germination rate decreased for the tetraploid ***,there was a gap between the shell and kernel of the tetraploid ***,the water absorption rate was higher for the tetraploid than for the diploid *** doubling increased the seed total flavonoid content and deepened the seed color.A principal component analysis of the ultrahigh-pressure liquid chromatography-high resolution mass spectrometry data revealed the clear separation between the diploid and tetraploid *** orthogonal partial least squares-discriminant analysis and other multivariate statistical analyses identified 83 differentially abundant compounds,with most of the flavonoid metabolites more abundant in the tetraploid than in the diploid *** on tartary buckwheat polyploidy may result in enhanced germplasm resources and may clarify the mechanism underlying the biosynthesis of bioactive compounds.
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