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Genome-wide identification of markers for selecting higher oil content in oil palm
- Source :
- BMC Plant Biology, Vol 17, Iss 1, Pp 1-11 (2017)
- Publication Year :
- 2017
- Publisher :
- BMC, 2017.
-
Abstract
- Abstract Background Oil palm (Elaeis guineensis, Jacq.) is the most important source of edible oil. The improvement of oil yield is currently slow in conventional breeding programs due to long generation intervals. Marker-assisted selection (MAS) has the potential to accelerate genetic improvement. To identify DNA markers associated with oil content traits for MAS, we performed quantitative trait loci (QTL) mapping using genotyping by sequencing (GBS) in a breeding population derived from a cross between Deli Dura and Ghana Pisifera, containing 153 F1 trees. Results We constructed a high-density linkage map containing 1357 SNPs and 123 microsatellites. The 16 linkage groups (LGs) spanned 1527 cM, with an average marker space of 1.03 cM. One significant and three suggestive QTL for oil to bunch (O/B) and oil to dry mesocarp (O/DM) were mapped on LG1, LG8, and LG10 in a F1 breeding population, respectively. These QTL explained 7.6–13.3% of phenotypic variance. DNA markers associated with oil content in these QTL were identified. Trees with beneficial genotypes at two QTL for O/B showed an average O/B of 30.97%, significantly (P
Details
- Language :
- English
- ISSN :
- 14712229
- Volume :
- 17
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- BMC Plant Biology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.19105183441f4466ac8f736a6242abd5
- Document Type :
- article
- Full Text :
- https://doi.org/10.1186/s12870-017-1045-z