| Item type |
国際農研デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2025-07-16 |
| タイトル |
|
|
タイトル |
Detection and characterization of quantitative trait loci for phytic acid in grains toward improved black rice in northern Laos |
|
言語 |
en |
| 作成者 |
Takai, Toshiyuki
Saito, Hiroki
Marui, Junichiro
Oo, Aung Zaw
Vilayheuang, Koukham
Phongchanmixay, Sengthong
Asai, Hidetoshi
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
© 2025 Takai, Saito, Marui, Oo, Vilayheuang, Phongchanmixay and Asai. |
| 権利情報 |
|
|
権利情報Resource |
http://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
| 主題 |
|
|
主題 |
black rice, breeding, Laos, phytic acid, quantitative trait locus |
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Black rice is an essential agricultural commodity in the upland ecosystems of northern Laos. Considering the low yield potential of black rice and the low-fertility soils in the region, breeding improved black rice with high yield potential and phytic acid (PA) content in grains as a phosphorus source for vigorous seedling growth is necessary. This study included genetic analyses conducted in Laos and Japan using an F2 population derived from a cross between Kampeng, a black rice variety with a high PA content, and Non, a white rice variety with more panicles, even in low-fertility soils. A major quantitative trait locus (QTL) for grain color was detected in Kala4, which is involved in the expression of the black color in the rice variety. Two QTLs were detected for PA content. One of these, a novel QTL named qPA1, was detected at the end of the short arm of chromosome 1 in both Japan and Laos. The effect of the Kampeng allele on increasing the PA content was demonstrated in the F3 lines. An additional QTL identified exclusively in Japan was suggested to be due to an environmental response via Hd6. PA accumulation in late-heading F2 individuals by Hd6 may have been suppressed due to low temperatures. In addition, no QTLs were detected for the Non allele that increased the panicle number, although Non exhibited more panicles than Kampeng. These results indicate that incorporating the Kampeng allele of Kala4 and qPA1 into the Non genetic background may serve as an effective breeding strategy. This approach could enhance the development of black rice with high yield potential and PA content, thereby contributing to increased black rice production in the upland ecosystems of northern Laos. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Frontiers Media |
| 日付 |
|
|
日付 |
2025-06-23 |
|
日付タイプ |
Accepted |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.3389/fsufs.2025.1620644 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
2571-581X |
| 書誌情報 |
en : Frontiers in Sustainable Food Systems
巻 9,
p. 1620644,
発行日 2025-07-14
|
| 助成情報 |
|
|
|
識別子タイプ |
Crossref Funder |
|
|
助成機関識別子 |
https://doi.org/10.13039/501100009472 |
|
|
助成機関名 |
Japan International Research Center for Agricultural Sciences (JIRCAS)(en) |
|
|
研究課題番号URI |
https://www.jircas.go.jp/en/program/prob/b2 |
|
|
研究課題番号 |
05a1B2 |
|
|
研究課題名 |
Design of crop breeding and food processing of indigenous resources to create new and diversified demands(en) |
| 位置情報 |
|
|
|
位置情報（自由記述） |
Laos |
|
|
位置情報（自由記述） |
ラオス |
2000889 (868.8 KB)
.png)
