ArticleGenome biology and evolution2014
Small homologous blocks in phytophthora genomes do not point to an ancient whole-genome duplication.
Article in Genome biology and evolution, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 10 citations in OpenAlex.
- A whole genome duplication drives the genome evolution of Phytophthora betacei, a closely related species to Phytophthora infestans.BMC genomics · 2021Article
- Comparative analysis ofHeliyon · 2021Article
- Phytophthora megakarya and P. palmivora, closely related causal agents of cacao black pod rot, underwent increases in genome sizes and gene numbers by different mechanisms.Genome biology and evolution · 2017Article
- Transposons passively and actively contribute to evolution of the two-speed genome of a fungal pathogen.Genome research · 2016Article
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3 authors at 2 institutions in 1 country.
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Abstract
Genomes of the plant-pathogenic genus Phytophthora are characterized by small duplicated blocks consisting of two consecutive genes (2HOM blocks) and by an elevated abundance of similarly aged gene duplicates. Both properties, in particular the presence of 2HOM blocks, have been attributed to a whole-genome duplication (WGD) at the last common ancestor of Phytophthora. However, large intraspecies synteny-compelling evidence for a WGD-has not been detected. Here, we revisited the WGD hypothesis by deducing the age of 2HOM blocks. Two independent timing methods reveal that the majority of 2HOM blocks arose after divergence of the Phytophthora lineages. In addition, a large proportion of the 2HOM block copies colocalize on the same scaffold. Therefore, the presence of 2HOM blocks does not support a WGD at the last common ancestor of Phytophthora. Thus, genome evolution of Phytophthora is likely driven by alternative mechanisms, such as bursts of transposon activity.
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