Dataset Information

The genotype-dependent phenotypic landscape of quinoa in salt tolerance and key growth traits.

ABSTRACT: Cultivation of quinoa (Chenopodium quinoa), an annual pseudocereal crop that originated in the Andes, is spreading globally. Because quinoa is highly nutritious and resistant to multiple abiotic stresses, it is emerging as a valuable crop to provide food and nutrition security worldwide. However, molecular analyses have been hindered by the genetic heterogeneity resulting from partial outcrossing. In this study, we generated 136 inbred quinoa lines as a basis for the molecular identification and characterization of gene functions in quinoa through genotyping and phenotyping. Following genotyping-by-sequencing analysis of the inbred lines, we selected 5,753 single-nucleotide polymorphisms (SNPs) in the quinoa genome. Based on these SNPs, we show that our quinoa inbred lines fall into three genetic sub-populations. Moreover, we measured phenotypes, such as salt tolerance and key growth traits in the inbred quinoa lines and generated a heatmap that provides a succinct overview of the genotype-phenotype relationship between inbred quinoa lines. We also demonstrate that, in contrast to northern highland lines, most lowland and southern highland lines can germinate even under high salinity conditions. These findings provide a basis for the molecular elucidation and genetic improvement of quinoa and improve our understanding of the evolutionary process underlying quinoa domestication.

SUBMITTER: Mizuno N

PROVIDER: S-EPMC7566363 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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The genotype-dependent phenotypic landscape of quinoa in salt tolerance and key growth traits.

Mizuno Nobuyuki N Toyoshima Masami M Fujita Miki M Fukuda Shota S Kobayashi Yasufumi Y Ueno Mariko M Tanaka Kojiro K Tanaka Tsutomu T Nishihara Eiji E Mizukoshi Hiroharu H Yasui Yasuo Y Fujita Yasunari Y

DNA research : an international journal for rapid publication of reports on genes and genomes 20200801 4

Cultivation of quinoa (Chenopodium quinoa), an annual pseudocereal crop that originated in the Andes, is spreading globally. Because quinoa is highly nutritious and resistant to multiple abiotic stresses, it is emerging as a valuable crop to provide food and nutrition security worldwide. However, molecular analyses have been hindered by the genetic heterogeneity resulting from partial outcrossing. In this study, we generated 136 inbred quinoa lines as a basis for the molecular identification and ...[more]

PMID: 33051662

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Dataset Information

The genotype-dependent phenotypic landscape of quinoa in salt tolerance and key growth traits.

Publications

The genotype-dependent phenotypic landscape of quinoa in salt tolerance and key growth traits.

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