突变体Tof11等位基因在早期种植的适应性强的日本夏型大豆中高度积累。

IF 2 4区 农林科学 Q2 AGRONOMY Breeding Science Pub Date : 2023-06-01 Epub Date: 2023-06-28 DOI:10.1270/jsbbs.22098
Kunihiko Komatsu, Takashi Sayama, Ken-Ichiro Yamashita, Yoshitake Takada
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引用次数: 0

摘要

为了避免气候变化导致的作物歉收,日本西部需要适应早期种植的大豆品种。由于目前的日本品种可能不具有适应性,必须开发早期种植适应性高的遗传资源及其遗传信息。在本研究中,以为早期种植开发的夏型大豆为植物材料。我们检测了它们的表型特征和短繁殖期,作为早期种植适应性的指标,并进行了遗传研究。一个具有代表性的ST品种的双亲数量性状基因座(QTL)分析揭示了11号染色体上生殖期持续时间的主要QTL。重测序分析结果表明,与昼夜节律时钟相关的Tof11(PRR3的大豆直系同源物)是一个候选QTL。此外,本研究评估的所有25个早期种植适应性种质在Tof11中都具有突变等位基因,而15个常规品种只有野生型等位基因。这些结果表明,Tof11中的突变等位基因是这些大豆对早期种植具有高度适应性的重要遗传因素,因此,这些等位基因在ST大豆群体中获得并积累。
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Mutant Tof11 alleles are highly accumulated in early planting-adaptable Japanese summer type soybeans.

To avoid crop failure because of climate change, soybean (Glycine max (L.) Merrill) cultivars adaptable to early planting are required in western Japan. Because current Japanese cultivars may not be adaptable, genetic resources with high early-planting adaptability, and their genetic information must be developed. In the present study, summer type (ST) soybeans developed for early planting were used as plant materials. We examined their phenological characteristics and short reproductive period as an indicator of early planting adaptability and performed genetic studies. Biparental quantitative trait loci (QTL) analysis of a representative ST cultivar revealed a principal QTL for the reproductive period duration on chromosome 11. The results of resequencing analysis suggested that circadian clock-related Tof11 (soybean orthologue of PRR3) is a candidate QTL. Additionally, all 25 early planting-adaptable germplasms evaluated in this study possessed mutant alleles in Tof11, whereas 15 conventional cultivars only had wild-type alleles. These results suggest that mutant alleles in Tof11 are important genetic factors in the high adaptability to early planting of these soybeans, and thus, these alleles were acquired and accumulated in the ST soybean population.

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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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