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タイトル: | The genotype-dependent phenotypic landscape of quinoa in salt tolerance and key growth traits |
著者: | Mizuno, Nobuyuki Toyoshima, Masami Fujita, Miki Fukuda, Shota Kobayashi, Yasufumi Ueno, Mariko Tanaka, Kojiro Tanaka, Tsutomu Nishihara, Eiji Mizukoshi, Hiroharu Yasui, Yasuo https://orcid.org/0000-0003-3804-7886 (unconfirmed) Fujita, Yasunari |
著者名の別形: | 水野, 信之 豊島, 真実 藤田, 美紀 福田, 将太 上野, まりこ 田中, 孝二郎 田中, 努 西原, 英治 水越, 裕治 安井, 康夫 藤田, 泰成 |
キーワード: | quinoa genotype inbred line phenotype salt stress |
発行日: | Aug-2020 |
出版者: | Oxford University Press (OUP) |
誌名: | DNA Research |
巻: | 27 |
号: | 4 |
論文番号: | dsaa022 |
抄録: | 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. |
記述: | スーパー作物キヌアの多様性を解明 --高い環境適応性と優れた栄養特性をもつキヌアの品種改良に期待--. 京都大学プレスリリース. 2020-10-15. |
著作権等: | © The Author(s) 2020. Published by Oxford University Press on behalf of Kazusa DNA Research Institute. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
URI: | http://hdl.handle.net/2433/255581 |
DOI(出版社版): | 10.1093/dnares/dsaa022 |
PubMed ID: | 33051662 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2020-10-15-1 |
出現コレクション: | 学術雑誌掲載論文等 |
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