Genomic evidence for homoploid hybrid speciation between ancestors of two different genera

• DOI: 10.1038/s41467-022-29643-4
• Publication Date: 2022-04-13T10:14:25Z
• Authors: Zefu Wang; Minghui Kang; Jialiang Li; Zhiyang Zhang; Yufei Wang; Chunlin Chen; Yongzhi Yang; Jianquan Liu
• Keywords: Reticulate evolution; Lineage (genetic)

Homoploid hybrid speciation (HHS) has been increasingly recognized as occurring widely during species diversification of both plants and animals. However, previous studies on HHS have mostly focused closely-related while it rarely reported or tested between ancestors different genera. Here, we explore the likely origin Carpinus sect. Distegocarpus Ostrya in family Betulaceae. We generate a chromosome-level reference genome for C. viminea re-sequence genomes 44 individuals from genera Ostrya. Our integrated analyses all genomic data suggest that Distegocarpus, which three species, originates through early divergence study highlights likelihood an event extant their initial divergences, may led to reticulate phylogenies at higher taxonomic levels.