Abstract
The scarce knowledge on phenotypic characterization restricts the usage of genetic diversity of plant genetic resources in research and breeding. We describe original and ready-to-use processed data for approximately 60% of ~22,000 barley accessions hosted at the Federal ex situ Genebank for Agricultural and Horticultural Plant Species. The dataset gathers records for three traits with agronomic relevance: flowering time, plant height and thousand grain weight. This information was collected for seven decades for winter and spring barley during the seed regeneration routine. The curated data represent a source for research on genetics and genomics of adaptive and yield related traits in cereals due to the importance of barley as model organism. This data could be used to predict the performance of non-phenotyped individuals in other collections through genomic prediction. Moreover, the dataset empowers the utilization of phenotypic diversity of genetic resources for crop improvement.
Highlights
Background & SummaryCereals are staple food and a valuable source of nutrients around the world[1]
This study presents original and ready-to-use processed phenotypic data with the aim of leveraging the use of historical information collected during seed regeneration
The data correspond to historical records on traits flowering time (FT), plant height (PH), and thousand grain weight (TGW) accumulated for seven decades plus the outlier status of all data points and the Best Linear Unbiased Estimations (BLUEs) for winter and spring barley accessions pertaining to these traits
Summary
Cereals are staple food and a valuable source of nutrients around the world[1]. Among them, barley (Hordeum vulgare sp.) is the fourth most produced crop[2]. The data correspond to historical records on traits flowering time (FT), plant height (PH), and thousand grain weight (TGW) accumulated for seven decades plus the outlier status of all data points and the Best Linear Unbiased Estimations (BLUEs) for winter and spring barley accessions pertaining to these traits This historical information belongs to the barley collection of the Federal ex situ Genebank for Agricultural and Horticultural Plant Species hosted at the Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) in Gatersleben (Germany). Conserving and managing a total of ~22,000 accessions, the IPK Genebank manages the sixth largest collection worldwide, which covers a broad range of phenotypic variation[14,15,24,25] This data publication complements a previous research publication[25] which focuses on the valorization of genetic resources by developing, validating and employing a curated data set from seed regeneration. Part of these BLUEs was recently used to show the potetial of genome wide association for FT in genebank materials of spring barley[26]
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