Plant Diversity ›› 2024, Vol. 46 ›› Issue (02): 219-228.DOI: 10.1016/j.pld.2023.07.009

• Articles • Previous Articles     Next Articles

Historical biogeography and evolutionary diversification of Lilium (Liliaceae): New insights from plastome phylogenomics

Nian Zhoua,b, Ke Miaoa,b, Changkun Liuc, Linbo Jiaa, Jinjin Hua, Yongjiang Huanga, Yunheng Jia,d   

  1. a. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China;
    b. University of Chinese Academy of Sciences, Beijing 100049, China;
    c. Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China;
    d. Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Population, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
  • Received:2023-02-27 Revised:2023-07-22 Online:2024-03-25 Published:2024-04-07
  • Contact: Nian Zhou,;Ke Miao,;Changkun Liu,;Linbo Jia,;Jinjin Hu,;Yongjiang Huang,;Yunheng Ji,
  • Supported by:
    This study was financially supported by the National Natural Science Foundation of China (31872673), Yunnan Revitalization Talent Support Program “Top Team” Project (202305AT350001), and the NSFC-Joint Foundation of Yunnan Province (U1802287).

Abstract: Here, we infer the historical biogeography and evolutionary diversification of the genus Lilium. For this purpose, we used the complete plastomes of 64 currently accepted species in the genus Lilium (14 plastomes were newly sequenced) to recover the phylogenetic backbone of the genus and a time-calibrated phylogenetic framework to estimate biogeographical history scenarios and evolutionary diversification rates of Lilium. Our results suggest that ancient climatic changes and geological tectonic activities jointly shaped the distribution range and drove evolutionary radiation of Lilium, including the Middle Miocene Climate Optimum (MMCO), the late Miocene global cooling, as well as the successive uplift of the Qinghai-Tibet Plateau (QTP) and the strengthening of the monsoon climate in East Asia during the late Miocene and the Pliocene. This case study suggests that the unique geological and climatic events in the Neogene of East Asia, in particular the uplift of QTP and the enhancement of monsoonal climate, may have played an essential role in formation of uneven distribution of plant diversity in the Northern Hemisphere.

Key words: Asian monsoon, Climatic changes, Distribution range, Evolutionary complexity, Radiative diversification, Species diversity, Qinghai-Tibet Plateau (QTP)