Effects of climate and topography on the diversity anomaly of plants disjunctly distributed in eastern Asia and eastern North America

Yin, Xue; Qian, Hong; Sui, Xinghua; Zhang, Minhua; Mao, Lingfeng; Svenning, Jens‐Christian; Ricklefs, Robert E.; He, Fangliang

doi:10.1111/geb.13366

Cited by 6 publications

(3 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Hengduan Mountains were thought to have experienced a series of topographical deformations from the late Oligocene (Ding et al, 2020 ; Su et al, 2019 ). Orogenic activities in mountain ranges increase topographic heterogeneity, create dispersal barriers or corridors, form novel habitat types, promote speciation, and influence phylogeographic patterns of species (Liu, Moller, et al, 2013 ; Yin et al, 2021 ). In addition, climate oscillations usually induce range contractions or expansions from refugial areas of many plants, with populations moving latitudinally along valleys (Tank & Sang, 2001 ; Vitt et al, 2010 ) and altitudinally on mountain slopes (Wang et al, 2010 ; Zhang et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Population structure and phylogeography of three closely related tree peonies

Liu,

Xue,

Zhao

et al. 2023

Ecology and Evolution

View full text Add to dashboard Cite

Paeonia decomposita, Paeonia rotundiloba, and Paeonia rockii are three closely related species of Sect. Moutan is distributed in the montane area of the Eastern Hengduan Mountain region. Understanding the population history of these three tree peony species could contribute to unraveling the evolutionary patterns of undergrowth species in this hotspot area. We used one nuclear DNA marker (internal transcribed spacer region, ITS) and two chloroplast DNA markers (matK, ycf1) to reconstruct the phylogeographic pattern of the populations. In total, 228 individuals from 17 populations of the three species were analyzed in this study. Three nuclear clades (Clade I -Clade III) and four maternal clades (Clade A -Clade D) were reconstructed. Molecular dating suggested that young lineages diverged during the late Pliocene and earlyPleistocene, younger than the uplift of the Hengduan Mountains but older than the last glacial maximum (LGM). Significant population and phylogeographic structures were detected at both markers. Furthermore, the populations of these tree peonies were overall at equilibrium during the climatic oscillations of the Pleistocene. The simulated palaeoranges of the three species during the LGM period mostly overlapped, which could have led to cross-breeding events. We propose an evolutionary scenario in which mountain orogenesis around the Hengduan Mountain area triggered parapatric isolation between maternal lineages of tree peonies. Subsequent climatic fluctuations drove migration and range recontact of these populations along the valleys. This detailed evolutionary history provides new insights into the phylogeographic pattern of species from mountain-valley systems.

show abstract

Section: Introductionmentioning

confidence: 99%

Population structure and phylogeography of three closely related tree peonies

Liu,

Xue,

Zhao

et al. 2023

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…The subgenus Cerasus is thought to have originated in East Asia and migrated to North America though the North Atlantic Land Bridge and the Bering Land Bridge [21]. The high species richness of East Asia is often attributed to the unique climate, geomorphological features, and geological history of East Asia [42][43][44][45]. The uplift of the Qinghai-Tibet Plateau has resulted in a complex topography and high ecological heterogeneity in southwestern China [46,47].…”

Section: Differences In Species Richness Between North America and Ea...mentioning

confidence: 99%

The Species Richness-Environment Relationship for Cherries (Prunus subgenus Cerasus) across the Northern Hemisphere

Xie

Idrees

et al. 2023

Forests

View full text Add to dashboard Cite

Understanding large-scale patterns of biodiversity and their drivers remains significant in biogeography. Cherries species (Prunus subgenus Cerasus, Rosaceae) are economically and ecologically important in ecosystems and human agricultural activities. However, the mechanisms underlying the patterns of the species richness–environment relationship in Cerasus remain poorly understood. We collected and filtered worldwide specimen data to map the species richness of Cerasus at the global scale. The map of Cerasus species richness was created using 21,043 reliable recorded specimens. The center of Cerasus diversity was determined using spatial cluster analysis. Stepwise regression analysis was carried out using five groups of 21 environmental variables and an integrated model was included to assess the impact of the overall environment. We calibrated each of the four integrated models and used them to predict the global Cerasus species richness and that of the other continents. Our results revealed that Cerasus species have two centers of diversity (the southwest of China and Honshu Island in Japan) with differing environmental variables influencing the distribution patterns of these two centers. In the southwest of China, hygrothermal conditions are the main driving factor while in Japan, habitat heterogeneity is the main driving factor. The relationship between the abundance of Cerasus and the various groups of factors generally supports both the productivity and the habitat heterogeneity hypotheses. However, these hypotheses do not fully explain the Cerasus species richness pattern, indicating that other factors such as historical environment, topography, and human activities likely played a role in pattern formation. The high level of habitat heterogeneity and better hygrothermal conditions may have played an important role in the establishment of its globally consistent richness–climate relationship. Our results can provide valuable information for the classification and conservation of Cerasus natural resources as well as contribute to furthering our understanding of biogeography at a global scale.

show abstract

“…East Asia harbors greater species diversity due to its extreme topographic complexity and physiographical heterogeneity ( Qian and Ricklefs, 2000 ; Yin et al, 2021 ). The absence of continental glaciation and relatively low climate change velocity contribute to the preservation of high plant endemism ( Feng et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Stepped Geomorphology Shaped the Phylogeographic Structure of a Widespread Tree Species (Toxicodendron vernicifluum, Anacardiaceae) in East Asia

Wang

Noshiro

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

Species’ phylogeographic patterns reflect the interplay between landscape features, climatic forces, and evolutionary processes. Here, we used two chloroplast DNA (cpDNA) markers (trnL and trnL-F) to explore the role of stepped geomorphology in shaping the phylogeographic structure of Toxicodendron vernicifluum, an economically important tree species widely distributed in East Asia. The range-wide pattern of sequence variation was analyzed based on a dataset including 357 individuals from China, together with published sequences of 92 individuals mainly from Japan and South Korea. We identified five chloroplast haplotypes based on seven substitutions across the 717-bp alignment. A clear east-west phylogeographic break was recovered according to the stepped landforms of mainland China. The wild trees of the western clade were found to be geographically restricted to the “middle step”, which is characterized by high mountains and plateaus, while those of the eastern clade were confined to the “low step”, which is mainly made up of hills and plains. The two major clades were estimated to have diverged during the Early Pleistocene, suggesting that the cool glacial climate may have caused the ancestral population to retreat to at least two glacial refugia, leading to allopatric divergence in response to long-term geographic isolation. Migration vector analyses based on the outputs of ecological niche models (ENMs) supported a gradual range expansion since the Last Interglacial. Mountain ranges in western China and the East China Sea land bridge were inferred to be dispersal corridors in the western and eastern distributions of T. vernicifluum, respectively. Overall, our study provides solid evidence for the role of stepped geomorphology in shaping the phylogeographic patterns of T. vernicifluum. The resulting east-west genetic discontinuities could persist for a long time, and could occur at a much larger scale than previously reported, extending from subtropical (e.g., the Xuefeng Mountain) to warm-temperate China (e.g., the Taihang Mountain).

show abstract

Effects of climate and topography on the diversity anomaly of plants disjunctly distributed in eastern Asia and eastern North America

Cited by 6 publications

References 72 publications

Population structure and phylogeography of three closely related tree peonies

Population structure and phylogeography of three closely related tree peonies

The Species Richness-Environment Relationship for Cherries (Prunus subgenus Cerasus) across the Northern Hemisphere

Stepped Geomorphology Shaped the Phylogeographic Structure of a Widespread Tree Species (Toxicodendron vernicifluum, Anacardiaceae) in East Asia

Contact Info

Product

Resources

About