Abstract:
:Olive (Olea europaea L.) is one of the most economically and historically important fruit crops worldwide. Genetic progress for valuable agronomic traits has been slow in olive despite its importance and benefits. Advances in next generation sequencing technologies provide inexpensive and highly reproducible genotyping approaches such as Genotyping by Sequencing, enabling genome wide association study (GWAS). Here we present the first comprehensive GWAS study on olive using GBS. A total of 183 accessions (FULL panel) were genotyped using GBS, 94 from the Turkish Olive GenBank Resource (TOGR panel) and 89 from the USDA-ARS National Clonal Germplasm Repository (NCGR panel) in the USA. After filtering low quality and redundant markers, GWAS was conducted using 24,977 SNPs in FULL, TOGR and NCGR panels. In total, 52 significant associations were detected for leaf length, fruit weight, stone weight and fruit flesh to pit ratio using the MLM_K. Significant GWAS hits were mapped to their positions and 19 candidate genes were identified within a 10-kb distance of the most significant SNP. Our findings provide a framework for the development of markers and identification of candidate genes that could be used in olive breeding programs.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kaya HB,Akdemir D,Lozano R,Cetin O,Sozer Kaya H,Sahin M,Smith JL,Tanyolac B,Jannink JLdoi
10.1038/s41598-019-55338-wsubject
Has Abstractpub_date
2019-12-10 00:00:00pages
18764issue
1issn
2045-2322pii
10.1038/s41598-019-55338-wjournal_volume
9pub_type
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