Multi-Approach Unveils Potential Gene Introgression of Oil Camellias
The complex phylogenetic relationship of polyploid species provides an opportunity for a comprehensive study of gene introgression. Oil camellias refer to a class of important woody oil plant in the camellia genus, including octoploid, hexaploid, tetraploid, and diploid plants, but the phylogeny rel...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
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| Series: | Horticulturae |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-7524/10/12/1252 |
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| Summary: | The complex phylogenetic relationship of polyploid species provides an opportunity for a comprehensive study of gene introgression. Oil camellias refer to a class of important woody oil plant in the camellia genus, including octoploid, hexaploid, tetraploid, and diploid plants, but the phylogeny relationship of these species remains poorly investigated. Here, based on multiple types of evidence, including phylogenetic conflict, gene flow analysis, and representative metabolite, we reconstructed the phylogenetic relationship of oil camellias. <i>Camellia shensiensis</i> and <i>C. grijsii</i> formed a distinct branch. Phylogenetic conflict suggested that hexaploid <i>C. oleifera</i> probably originated from hybridization and clustered with diploid <i>C. kissi</i> and tetraploid <i>C. meiocarpa</i>. Tetraploid <i>C. confusa</i> probably originated from crossing the ancestor of <i>C. kissi</i> and <i>C. brevistyla</i>, and <i>C. brevistyla</i> probably was the maternal progenitor of hexaploid <i>C. sasanqua</i>. Furthermore, the composition of anthocyanin in tender leaves showed a strong correlation with phylogenetic distinctions. This study proves the feasibility of using iconic metabolic components to solve phylogenetic relationships and lays a foundation for analyzing genetic breeding and utilizing oil camellia resources. |
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| ISSN: | 2311-7524 |