从ponticum中提取的Psy-E1对硬粒小麦有很强的黄度,但可能造成产量损失。

IF 2.2 4区 农林科学 Q2 AGRONOMY
Breeding Science Pub Date : 2025-04-01 Epub Date: 2025-03-26 DOI:10.1270/jsbbs.24070
Keita Kato, Yusuke Ban, Mikiko Yanaka, Motohiro Yoshioka, Hideki Okusu, Tomoki Tanaka, Hiroyuki Kawakami, Masahiro Yamaguchi, Wakako Funatsuki, Kanenori Takata, Miwako Ito
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引用次数: 0

摘要

由硬粒小麦(Triticum turgidum L. subsp.)制成的粗粒小麦粉因类胡萝卜素积累而呈强烈的黄色。硬粒(Desf.))是面食生产中最重要的性状之一。类胡萝卜素生物合成途径的第一步是由植物烯合成酶(phytoene synthase, PSY)催化的,这是一个瓶颈,硬粒小麦的PSY - a1等位基因变异导致种子中黄色色素含量(YPC)不同。携带抗叶锈病基因Lr19的硬粒小麦可以产生高YPC,该基因从小麦亲缘物薄叶锈病(Thinopyrum ponticum)的7E染色体易位到硬粒小麦的7A染色体上,推测其致病基因为与Lr19密切相关的Psy-E1。本研究中,在硬粒小麦中,Psy-E1比Psy-A1等位基因(如Psy-A1k、Psy-A1和psy - a10)产生更高的YPC。分离分析表明,Psy-E1位于7A染色体上的Psy-A1位点。在2年的近等基因材料田间试验中,在日本小麦产区典型的水分条件下,Psy-E1导致单穗粒数、试验重和千粒重下降,造成产量损失。因此,尽管适用的栽培环境有限,但Psy-E1在硬粒小麦育种计划中具有高YPC的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

<i>Psy-E1</i> derived from <i>Thinopyrum ponticum</i> contributes strong yellowness to durum wheat but may cause yield loss in Japan.

<i>Psy-E1</i> derived from <i>Thinopyrum ponticum</i> contributes strong yellowness to durum wheat but may cause yield loss in Japan.

<i>Psy-E1</i> derived from <i>Thinopyrum ponticum</i> contributes strong yellowness to durum wheat but may cause yield loss in Japan.

Psy-E1 derived from Thinopyrum ponticum contributes strong yellowness to durum wheat but may cause yield loss in Japan.

Strong yellow color, caused by carotenoid accumulation, in semolina flour made from durum wheat (Triticum turgidum L. subsp. durum (Desf.)) is one of the most important traits for pasta production. The first step in the carotenoid biosynthesis pathway, which is catalyzed by phytoene synthase (PSY), is a bottleneck, and allelic variation of Psy-A1 in durum wheat produces different yellow pigment contents (YPC) in seeds. Durum wheat carrying leaf rust resistance gene Lr19, which was translocated from wheat relative Thinopyrum ponticum chromosome 7E to durum wheat chromosome 7A, is known to produce high YPC, and the causal gene is presumed to be Psy-E1, which is tightly linked to Lr19. In this study, Psy-E1 produced higher YPC than Psy-A1 alleles, such as Psy-A1k, Psy-A1l and Psy-A1o, in durum wheat. Segregation analysis demonstrated that Psy-E1 is located at the Psy-A1 locus on chromosome 7A. In a 2-year field test of near-isogenic materials, Psy-E1 was accompanied by yield loss with decreases in grain number per spike, test weight and thousand-kernel weight under moisture conditions typical of wheat-growing areas of Japan. Thus, Psy-E1 has the potential to contribute high YPC in durum wheat breeding programs, although the applicable cultivation environments are limited.

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来源期刊
Breeding Science
Breeding Science 农林科学-农艺学
CiteScore
4.90
自引率
4.20%
发文量
37
审稿时长
1.5 months
期刊介绍: Breeding Science is published by the Japanese Society of Breeding. Breeding Science publishes research papers, notes and reviews related to breeding. Research Papers are standard original articles. Notes report new cultivars, breeding lines, germplasms, genetic stocks, mapping populations, database, software, and techniques significant and useful for breeding. Reviews summarize recent and historical events related breeding. Manuscripts should be submitted by corresponding author. Corresponding author must have obtained permission from all authors prior to submission. Correspondence, proofs, and charges of excess page and color figures should be handled by the corresponding author.
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