The analysis of candidate genes and loci involved with carotenoid metabolism in cassava (Manihot esculenta Crantz) using SLAF-seq

文献类型： 外文期刊

第一作者： Luo, Xiuqin

作者： Luo, Xiuqin;Li, Kaimian;Chen, Songbi;Tomlins, Keith Ian;Castelo Branco Carvalho, Luiz Joaquim

作者机构：

关键词： Cassava storage root; Carotenoids; Genome wide association studies (GWAS); Specific locus amplified fragment sequencing (SLAF-seq); Genes and loci

期刊名称：ACTA PHYSIOLOGIAE PLANTARUM （ 影响因子：2.354； 五年影响因子：2.711 ）

ISSN： 0137-5881

年卷期： 2018 年 40 卷 4 期

页码：

收录情况： SCI

摘要： Carotenoids in cassava storage roots play important roles in benefiting people's health in the tropics because they provide essential nutrients and antioxidants. Although the related genes and loci associated with carotenoid metabolism in many species are well reported, in cassava they are poorly understood. In the present study, GWAS base on SLAF-seq was used in detecting the related genes and loci correlated to carotenoid contents in 98 accessions from a cassava F-1 mapping population. The 98 accessions were divided into four subgroups. On the basis of general linear and compressed linear models, 144 genes were detected by selective sweep analysis, and 84 SNPs and 694 genes were detected by association mapping, in which Manes. 04G164700 (XanDH) and Manes. 11G105300 (AAO) were probably involved in the downstream pathway of carotenoid metabolism, and their expressions in six cassava genotypes were confirmed. Our results will be useful in yellow-root cassava variety improvement and provide the most effective and sustainable approach to maximize the nutritional and health benefits of carotenoid to a large number of populations.

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