Back to Search
Start Over
Genomic basis of seed colour in quinoa inferred from variant patterns using extreme gradient boosting.
- Source :
- Plant Biotechnology Journal; May2024, Vol. 22 Issue 5, p1312-1324, 13p
- Publication Year :
- 2024
-
Abstract
- Summary: Quinoa is an agriculturally important crop species originally domesticated in the Andes of central South America. One of its most important phenotypic traits is seed colour. Seed colour variation is determined by contrasting abundance of betalains, a class of strong antioxidant and free radicals scavenging colour pigments only found in plants of the order Caryophyllales. However, the genetic basis for these pigments in seeds remains to be identified. Here we demonstrate the application of machine learning (extreme gradient boosting) to identify genetic variants predictive of seed colour. We show that extreme gradient boosting outperforms the classical genome‐wide association approach. We provide re‐sequencing and phenotypic data for 156 South American quinoa accessions and identify candidate genes potentially controlling betalain content in quinoa seeds. Genes identified include novel cytochrome P450 genes and known members of the betalain synthesis pathway, as well as genes annotated as being involved in seed development. Our work showcases the power of modern machine learning methods to extract biologically meaningful information from large sequencing data sets. [ABSTRACT FROM AUTHOR]
- Subjects :
- QUINOA
COLOR
SEEDS
GENOME-wide association studies
GENETIC variation
CYTOCHROME P-450
Subjects
Details
- Language :
- English
- ISSN :
- 14677644
- Volume :
- 22
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Plant Biotechnology Journal
- Publication Type :
- Academic Journal
- Accession number :
- 176649877
- Full Text :
- https://doi.org/10.1111/pbi.14267