Skip to main content
Journal cover image

The genome of a cave plant, Primulina huaijiensis, provides insights into adaptation to limestone karst habitats.

Publication ,  Journal Article
Feng, C; Wang, J; Wu, L; Kong, H; Yang, L; Feng, C; Wang, K; Rausher, M; Kang, M
Published in: The New phytologist
August 2020

Although whole genome duplication (WGD) has been suggested to facilitate adaptive evolution and diversification, the role of specific WGD events in promoting diversification and adaptation in angiosperms remains poorly understood. Primulina, a species-rich genus with > 180 species associated with limestone karst habitat, constitutes an ideal system for studying the impact of WGD events on speciation and evolutionary adaptation. We sequenced and assembled a chromosome-level genome of the cave-dwelling species P. huaijiensis to study gene family expansion and gene retention following WGDs. We provide evidence that P. huaijiensis has undergone two WGDs since the γ triplication event shared by all eudicots. In addition to a WGD shared by almost all Lamiales (L event), we identified a lineage-specific WGD (D event) that occurred in the early Miocene around 20.6-24.2 Myr ago and that is shared by almost the entire subtribe Didymocarpinae. We found that gene retentions following the D event led to gene family proliferation (e.g. WRKYs) that probably facilitated adaptation to the high salinity and drought stress in limestone karst. Our study highlights the role of lineage-specific WGD in species diversification and adaptation of plants from special habitats.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

The New phytologist

DOI

EISSN

1469-8137

ISSN

0028-646X

Publication Date

August 2020

Volume

227

Issue

4

Start / End Page

1249 / 1263

Related Subject Headings

  • Plant Biology & Botany
  • Phylogeny
  • Lamiales
  • Genome, Plant
  • Gene Duplication
  • Evolution, Molecular
  • Ecosystem
  • Calcium Carbonate
  • 4102 Ecological applications
  • 4101 Climate change impacts and adaptation
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Feng, C., Wang, J., Wu, L., Kong, H., Yang, L., Wang, K., … Kang, M. (2020). The genome of a cave plant, Primulina huaijiensis, provides insights into adaptation to limestone karst habitats. The New Phytologist, 227(4), 1249–1263. https://doi.org/10.1111/nph.16588
Feng, Chao, Jing Wang, Lingqing Wu, Hanghui Kong, Lihua Yang, Chen Feng, Kai Wang, Mark Rausher, and Ming Kang. “The genome of a cave plant, Primulina huaijiensis, provides insights into adaptation to limestone karst habitats.The New Phytologist 227, no. 4 (August 2020): 1249–63. https://doi.org/10.1111/nph.16588.
Feng C, Wang J, Wu L, Kong H, Yang L, Wang K, et al. The genome of a cave plant, Primulina huaijiensis, provides insights into adaptation to limestone karst habitats. The New phytologist. 2020 Aug;227(4):1249–63.
Feng, Chao, et al. “The genome of a cave plant, Primulina huaijiensis, provides insights into adaptation to limestone karst habitats.The New Phytologist, vol. 227, no. 4, Aug. 2020, pp. 1249–63. Epmc, doi:10.1111/nph.16588.
Feng C, Wang J, Wu L, Kong H, Yang L, Wang K, Rausher M, Kang M. The genome of a cave plant, Primulina huaijiensis, provides insights into adaptation to limestone karst habitats. The New phytologist. 2020 Aug;227(4):1249–1263.
Journal cover image

Published In

The New phytologist

DOI

EISSN

1469-8137

ISSN

0028-646X

Publication Date

August 2020

Volume

227

Issue

4

Start / End Page

1249 / 1263

Related Subject Headings

  • Plant Biology & Botany
  • Phylogeny
  • Lamiales
  • Genome, Plant
  • Gene Duplication
  • Evolution, Molecular
  • Ecosystem
  • Calcium Carbonate
  • 4102 Ecological applications
  • 4101 Climate change impacts and adaptation