Chromosome-level genome assembly of the aquatic plant Nymphoides indica reveals transposable element bursts and NBS-LRR gene family expansion shedding light on its invasiveness.

ABSTRACT: Nymphoides indica, an aquatic plant, is an invasive species that causes both ecological and economic damage in North America and elsewhere. However, the lack of genomic data of N. indica limits the in-depth analysis of this invasive species. Here, we report a chromosome-level genome assembly of nine pseudochromosomes of N. indica with a total size of ∼ 520 Mb. More than half of the N. indica genome consists of transposable elements (TEs), and a higher density of TEs around genes may play a significant role in response to an ever-changing environment by regulating the nearby gene. Additionally, our analysis revealed that N. indica only experienced a gamma (γ) whole-genome triplication event. Functional enrichment of the N. indica-specific and expanded gene families highlighted genes involve

SUBMITTER: Yang JS 

PROVIDER: S-EPMC9267246 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature