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Evolutionary analysis of the Moringa oleifera genome reveals a recent burst of plastid to nucleus gene duplications
- Source :
- Scientific Reports, Scientific Reports, Vol 10, Iss 1, Pp 1-15 (2020)
- Publication Year :
- 2020
- Publisher :
- Nature Publishing Group UK, 2020.
-
Abstract
- It is necessary to identify suitable alternative crops to ensure the nutritional demands of a growing global population. The genome of Moringa oleifera, a fast-growing drought-tolerant orphan crop with highly valuable agronomical, nutritional and pharmaceutical properties, has recently been reported. We model here gene family evolution in Moringa as compared with ten other flowering plant species. Despite the reduced number of genes in the compact Moringa genome, 101 gene families, grouping 957 genes, were found as significantly expanded. Expanded families were highly enriched for chloroplastidic and photosynthetic functions. Indeed, almost half of the genes belonging to Moringa expanded families grouped with their Arabidopsis thaliana plastid encoded orthologs. Microsynteny analysis together with modeling the distribution of synonymous substitutions rates, supported most plastid duplicated genes originated recently through a burst of simultaneous insertions of large regions of plastid DNA into the nuclear genome. These, together with abundant short insertions of plastid DNA, contributed to the occurrence of massive amounts of plastid DNA in the Moringa nuclear genome, representing 4.71%, the largest reported so far. Our study provides key genetic resources for future breeding programs and highlights the potential of plastid DNA to impact the structure and function of nuclear genes and genomes.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Nuclear gene
Evolution
lcsh:Medicine
Genes, Plant
01 natural sciences
Genome
Synteny
Article
Moringa
Evolution, Molecular
03 medical and health sciences
chemistry.chemical_compound
Gene Duplication
Genetics
Arabidopsis thaliana
Gene family
Plastids
Plastid
lcsh:Science
Gene
Phylogeny
Moringa oleifera
Multidisciplinary
biology
lcsh:R
fungi
food and beverages
biology.organism_classification
Computational biology and bioinformatics
030104 developmental biology
chemistry
lcsh:Q
Plant sciences
Sequence Alignment
DNA
Genome, Plant
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....034c2e9e2068a74c36a2951ac8c89f2c