PacBio long-read sequencing coupled with Hi-C was adopted to anchor chromosomes. Collinearity analysis, gene family evolution and phylogenetic reconstruction were systematically conducted.
Key Findings
An ancient whole-genome duplication event shared by ancestral Lamiales species was validated, followed by differentiated chromosomal breakage and fusion in distinct evolutionary clades.
Patterns of gene family gain/loss and functional differentiation between parasitic and autotrophic Lamiales plants were characterized.
A high-precision phylogenetic framework for Lamiales was established, laying fundamental genomic resources for evolutionary dissection and germplasm exploitation of medicinal and economic timber species in this order.
Full paper title: Chromosome-level assembly of Lindenbergia philippensis and comparative genomic analyses shed light on genome evolution in Lamiales, published in Frontiers in Plant Science (IF = 5.87).