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糯玉米和普通玉米籽粒蛋白差异分析

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为了探讨玉米糯性是否会影响籽粒储藏蛋白组成及含量,明确糯玉米与普通玉米在基因表达上的差异,为糯玉米育种提供更多的基因资源,通过使用A-PAGE和转录组测序分析等技术,对普通玉米和糯玉米的籽粒储藏蛋白组成及基因表达模式进行了分析。结果表明:糯玉米在籽粒储藏蛋白组成上与普通玉米接近,同时糯玉米和普通玉米的醇溶蛋白迁移速率明显快于小麦籽粒醇溶蛋白。基因表达上,玉米醇溶蛋白Zm00001d005793(mc1)在糯玉米和普通玉米上的表达模式上基本吻合,未见明显差异;玉米醇溶蛋白Zm00001d049243(fl2)和Zm00001d048851(fl4)在糯玉米中表达丰度显著低于普通玉米。以上结果说明,玉米糯性所在的调控通路可能影响籽粒储藏蛋白编码基因的表达。在育种过程中,应关注糯性和籽粒储藏蛋白的变化,从而提升育种产品的多样化,提高市场竞争力。
Differential Analysis of Gene Expression in Kernels of Glutinous Maize and Common Maize after Pollination
In order to explore whether waxy properties of maize can affect the composition and content of storage protein,and to clarify the difference of gene expression between waxy maize and common maize,so as to provide more gene resources for waxy maize breed-ing.In this study,A-PAGE and transcriptome sequencing techniques were used to analyze the composition and gene expression pat-terns of seed storage proteins in common maize and waxy maize..The results showed that the grain storage protein composition of waxy maize was identical to that of common maize,and the gliadin migration rate of waxy maize and common maize was faster than wheat grain gliadin.The expression pattern of Zm00001d005793(mc1)in waxy maize was comparable to that of common maize,although its expression abundance was lower.The expression patterns of zein Zm00001D005793(mc1)in waxy maize and common maize were sim-ilar,with no significant difference discovered.The expression of zein Zm0000 1D049243(FL2)and Zm00001D048851(FL4)was consid-erably lower in waxy maize than in common maize The results indicated that the regulation pathway of waxy traits in maize may affect the expression of genes encoding grain storage proteins.In breeding,we should pay attention to the changes of waxy properties and seed storage protein,so as to enhance the diversification of breeding products and enhance market competitiveness.

maizeseed storage proteingliadinend-use quality

陈华峰、刘颖、袁月、张晓、张家宁、刘丹

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天津市农业科学院农作物研究所/天津市农作物遗传育种重点实验室,天津 300384

天津中天大地科技有限公司,天津 300384

河北科技师范学院,河北秦皇岛 066000

玉米 籽粒储藏蛋白 醇溶蛋白 加工品质

天津市青年基金2023年天津市农科院种业创新研究河北科技师范学院科学研究基金

23JCQNJC006402024YB020

2024

天津农业科学
天津农业科学院信息研究所

天津农业科学

影响因子:0.705
ISSN:1006-6500
年,卷(期):2024.30(6)