Abstract Detail

Population Genetics/Genomics

Jin, JianJun [1], Xu, Yuxing [2], McKenzie, Patrick [1], Meek, Jared [1], Li, De-zhu [3], Yi, Ting-Shuang [2], Ree, Richard [4], Eaton, Deren [1].

A chromosome-scale Pedicularis genome enables exploring the determinants of genetic diversity.

The Hengduan Mountains of China is a biodiversity hotspot that harbors the greatest concentration of temperate plant diversity in the world. The genus Pedicularis stands out for its exceptional diversity across more than 300 endemic species. In this study, we assembled a chromosome-level assembly of P. cranolopha using a combination of long-reads, short-reads, and Hi-C sequencing data. Furthermore, we assembled the RAD-seq data of 103 P. cranolopha individuals and other 85 Pedicularis species. We constructed the phylogeny for Pedicularis and investigated the population structure and genomic admixture within P. cranolopha. We further compare the genomic variation within P. cranolopha with that across Pedicularis species. Besides, we compare the genomic variation among gene families. Our study will shed new light on the evolution of Pedicularis in the Hengduan Mountains, a hotspot of plant diversity.

1 - Columbia University, Ecology, Evolution, And Environmental Biology, 1200 Amsterdam Ave. , Schermerhorn Ext. Office 1007, New York, NY, 10027, United States
2 - Kunming Institute of Botany, Chinese Academy of Sciences, China
3 - Kunming Institute of Botany, Kunming, Yunnan, 650201, China
4 - Field Museum Of Natural History, Botany, 1400 S Lake Shore Drive, Chicago, IL, 60605, United States

Keywords:
Pedicularis
genome
Genetic diversity
Orobanchaceae
Lamiales.

Presentation Type: Oral Paper
Number: PGG5004
Abstract ID:621
Candidate for Awards:None