Data from: Genome-Wide Association Mapping of Loci Associated with Plant Growth and Forage Production under Salt Stress in Alfalfa (Medicago sativa L.)

Principal Investigator(s):  View help for Principal Investigator(s) US Department of Agriculture; National Agricultural Library

Version:  View help for Version V1

Name File Type Size Last Modified
Table1.csv text/csv 7.1 KB 06/26/2026 11:43:AM
adc_metadata.json application/json 22.2 KB 06/26/2026 08:07:PM
catalog_detail.html text/html 10.1 KB 06/26/2026 11:43:AM

Project Citation: 

US Department of Agriculture, and National Agricultural Library. Data from: Genome-Wide Association Mapping of Loci Associated with Plant Growth and Forage Production under Salt Stress in Alfalfa (Medicago sativa L.). Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2026-06-27. https://doi.org/10.3886/E250349V1

Project Description

Project Title:  View help for Project Title Data from: Genome-Wide Association Mapping of Loci Associated with Plant Growth and Forage Production under Salt Stress in Alfalfa (Medicago sativa L.)
Summary:  View help for Summary Salinity tolerance is highly desirable to sustain alfalfa production in marginal lands that have been rendered saline. In this study, we used a diverse panel of 198 alfalfa accessions for mapping loci associated with plant growth and forage production under salt stress using genome-wide association studies (GWAS). The plants were genotyped using genotyping-by-sequencing (GBS). A greenhouse procedure was used for phenotyping four agronomic and physiological traits affected by salt stress, including dry weight (DW), plant height (PH), leaf chlorophyll content (LCC), and stomatal conductance (SC). For each trait, a stress susceptibility index (SSI) was used to evaluate plant performance under stressed and non-stressed conditions. Marker-trait association identified a total of 42 markers significantly associated with salt tolerance. They were located on all chromosomes except chromosome 2 based on the alignment of their flanking sequences to the reference genome (Medicago truncatula). Of those identified, 13 were associated with multiple traits. Several loci identified in the present study were also identified in previous reports. BLAST search revealed that 19 putative candidate genes linked to 24 significant markers. Among them, B3 DNA-binding protein, Thiaminepyrophosphokinase and IQ calmodulin-binding motif protein were identified among multiple traits in the present and previous studies. With further investigation, these markers and candidates would be useful for developing markers for marker-assisted selection in breeding programs to improve alfalfa cultivars with enhanced tolerance to salt stress.


Resources in this dataset:

Resource Title: Table S1 data. File Name: Table1.csvResource Description: The mean SSI values of phenotypic evaluation of traits related to salt stress in the association panel. SSI-LCC, for leaf relative chlorophyll content; SSI-PH, for plant height; SSI-SC, for stomatal conductance; SSI-RWC, SSI for relative water content; SSI-DW, for dry weight. Download the original file at https://www.frontiersin.org/articles/file/downloadfile/256591_supplementary-materials_tables_1_xlsx/octet-stream/Table 1.XLSX/1/256591 OR https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5442208/bin/Table1.XLSX

Resource Title: Table S1 data.

File Name: Table1.csv

Resource Description: The mean SSI values of phenotypic evaluation of traits related to salt stress in the association panel. SSI-LCC, for leaf relative chlorophyll content; SSI-PH, for plant height; SSI-SC, for stomatal conductance; SSI-RWC, SSI for relative water content; SSI-DW, for dry weight.

Download the original file at https://www.frontiersin.org/articles/file/downloadfile/256591_supplementary-materials_tables_1_xlsx/octet-stream/Table 1.XLSX/1/256591 OR https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5442208/bin/Table1.XLSX
Original Distribution URL:  View help for Original Distribution URL https://agdatacommons.nal.usda.gov/articles/dataset/Data_from_Genome-Wide_Association_Mapping_of_Loci_Associated_with_Plant_Growth_and_Forage_Production_under_Salt_Stress_in_Alfalfa_Medicago_sativa_L_/24662910

Scope of Project

Subject Terms:  View help for Subject Terms GWAS; alfalfa; SNP; linkage; disequilibrium; salt tolerance
Collection Notes:  View help for Collection Notes DOI: 10.15482/USDA.ADC/1529207 Citation: Liu, Xiang-Ping; Yu, Long-Xi (2018). Data from: Genome-Wide Association Mapping of Loci Associated with Plant Growth and Forage Production under Salt Stress in Alfalfa (Medicago sativa L.). Frontiers in Plant Science. https://doi.org/10.15482/USDA.ADC/1529207 (Downloaded 2026-06-26)


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