NARO historical phenotype dataset from rice breeding.

IF 2 4区 农林科学 Q2 AGRONOMY
Breeding Science Pub Date : 2024-04-01 Epub Date: 2024-03-08 DOI:10.1270/jsbbs.23040
Kei Matsushita, Akio Onogi, Jun-Ichi Yonemaru
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引用次数: 0

Abstract

Data from breeding, including phenotypic information, may improve the efficiency of breeding. Historical data from breeding trials accumulated over a long time are also useful. Here, by organizing data accumulated in the National Agriculture and Food Research Organization (NARO) rice breeding program, we developed a historical phenotype dataset, which includes 6052 records obtained for 667 varieties in yield trials in 1991-2018 at six NARO research stations. The best linear unbiased predictions (BLUPs) and principal component analysis (PCA) were used to determine the relationships with various factors, including the year of cultivar release, for 15 traits, including yield. Yield-related traits such as the number of grains per panicle, plant weight, grain yield, and thousand-grain weight increased significantly with time, whereas the number of panicles decreased significantly. Ripening time significantly increased, whereas the lodging degree and protein content of brown rice significantly decreased. These results suggest that panicle-weight-type high-yielding varieties with excellent lodging resistance have been selected. These trends differed slightly among breeding locations, indicating that the main breeding objectives may differ among them. PCA revealed a higher diversity of traits in newer varieties.

NARO 水稻育种历史表型数据集。
育种数据(包括表型信息)可提高育种效率。长期积累的育种试验历史数据也很有用。在此,我们通过整理国家农业与食品研究组织(NARO)水稻育种项目中积累的数据,开发了一个历史表型数据集,其中包括 1991-2018 年在国家农业与食品研究组织六个研究站进行的产量试验中获得的 667 个品种的 6052 条记录。我们利用最佳线性无偏预测(BLUPs)和主成分分析(PCA)确定了包括产量在内的 15 个性状与各种因素(包括品种发布年份)的关系。与产量相关的性状,如每圆锥花序粒数、株重、谷物产量和千粒重,随着时间的推移显著增加,而圆锥花序数则显著减少。成熟时间明显延长,而糙米的结实率和蛋白质含量则明显下降。这些结果表明,具有优异抗倒伏性的穗粒重高产品种已被选育出来。这些趋势在不同育种地点略有不同,表明不同育种地点的主要育种目标可能不同。PCA 显示,新品种的性状多样性更高。
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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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