Matches in SemOpenAlex for { <https://semopenalex.org/work/W2912882963> ?p ?o ?g. }
- W2912882963 startingPage "526707" @default.
- W2912882963 abstract "Rhizobia supply legumes with fixed nitrogen using a set of symbiosis genes. These can cross rhizobium species boundaries, but it is unclear how many other genes show similar mobility. Here, we investigate inter-species introgression using de novo assembly of 196 Rhizobium leguminosarum bv. trifolii genomes. The 196 strains constituted a five-species complex, and we calculated introgression scores based on gene tree traversal to identify 171 genes that frequently cross species boundaries. Rather than relying on the gene order of a single reference strain, we clustered the introgressing genes into four blocks based on population structure-corrected linkage disequilibrium patterns. The two largest blocks comprised 125 genes and included the symbiosis genes, a smaller block contained 43 mainly chromosomal genes, and the last block consisted of three genes with variable genomic location. All introgression events were likely mediated by conjugation, but only the genes in the symbiosis linkage blocks displayed overrepresentation of distinct, high-frequency haplotypes. The three genes in the last block were core genes essential for symbiosis that had, in some cases, been mobilized on symbiosis plasmids. Inter-species introgression is thus not limited to symbiosis genes and plasmids, but other cases are infrequent and show distinct selection signatures." @default.
- W2912882963 created "2019-02-21" @default.
- W2912882963 creator A5006139137 @default.
- W2912882963 creator A5012829775 @default.
- W2912882963 creator A5017438915 @default.
- W2912882963 creator A5023511579 @default.
- W2912882963 creator A5025061570 @default.
- W2912882963 creator A5053789411 @default.
- W2912882963 creator A5074453392 @default.
- W2912882963 creator A5078389898 @default.
- W2912882963 creator A5082225594 @default.
- W2912882963 date "2019-11-20" @default.
- W2912882963 modified "2023-10-01" @default.
- W2912882963 title "Symbiosis genes show a unique pattern of introgression and selection within a Rhizobium leguminosarum species complex" @default.
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