Origins and evolution of plant diversity in the Hengduan Mountains, China

Sun, Hang; Zhang, Jianwen; Deng, Tao; Boufford, David E.

doi:10.1016/j.pld.2017.09.004

Cited by 172 publications

(138 citation statements)

References 86 publications

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“…Historical–geographical processes and/or climate change may trigger rapid speciation in the mountains region (Liu, Duan, et al, ; Liu et al, ; Sun et al, ; Xing & Ree, ). Moreover, these historical events, especially for the uplift of the HMR, may also have offered opportunities for related species to contact (Anderson & Stebbins, ; Folk et al, ; Frenzel, ; Liu, Duan, et al, ).…”

Section: Factors Which Trigger Hybridization In the Hmrmentioning

confidence: 99%

“…In summary, environmental heterogeneity associated with the uplift of the HMR and subsequent historical climate dynamics may have promoted rapid speciation in this region (Liu et al, , ; Qiu, Fu, & Comes, ). Major changes in topography and climate may have been responsible for historical geographical range dynamics that brought species into contact that previously were allopatric, creating opportunities for new evolutionary dynamics (Liu, Duan, et al, ; Liu et al, ; Sun et al, ; Xing & Ree, ). For all of the three hybrid speciation cases reviewed here, the hybrid species shows traits distinct from and outside the range of variation of either parental species (Lu et al, ; Ma et al, ; Sun et al, ).…”

Section: Homoploid Hybrid Speciation In the Hmrmentioning

confidence: 99%

“…Geographical history with climate change leads to the expansion of geographical ranges that provide opportunities for secondary contact in parental species after a period of differentiation in allopatry (Abbott, ; Liu, Duan, et al, ; Sun et al, ). The phylogeographic studies of homoploid hybrid species in the HMR implied that the formation of ancient hybrid zones is associated with these organic events (Gao et al, ; Liu, Abbott, et al, ; Sun et al, ).…”

Section: Hybrid Zones In the Hmrmentioning

confidence: 99%

“…The HMR in particular harbors the richest temperate flora of seed plants in the world and is considered to be among the areas with the high concentration of endemic species in the world (Li & Li, ; Wu, ). The region comprises about 16,550 species, which consist of 2,264 genera and 227 families (3,300 endemic species and 90 endemic genera) (Sun, Zhang, Deng, & Boufford, ). In the alpine zone of the HMR, the number of seed plant species is two to three times than that in other known alpine region (Xu, Li, & Sun, , ).…”

Section: Introductionmentioning

confidence: 99%

“…The HMR is located at the eastern end of the Himalayan regions and the south‐eastern boundary of the Qinghai‐Tibet Plateau (Li, ; Sun et al, ). Climate shift accompanied by orogenic events may lead to geographical overlap of some species, which impel the frequent contact of plants in the HMR.…”

Section: Introductionmentioning

confidence: 99%

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Homoploid hybridization of plants in the Hengduan mountains region

Yang

Folk

Zhang

et al. 2019

Ecology and Evolution

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The Hengduan Mountains Region (HMR) is a major global biodiversity hotspot. Complex tectonic and historical climatic conditions created opportunities for natural interspecific hybridization. Likewise, anthropogenic disturbance potentially raises the frequency of hybridization. Among species studies to date, the frequency of homoploid hybridization appears in the HMR. Of nine taxa in which natural hybridization has been detected, three groups are involved in homoploid hybrid speciation, and species pairs from the remaining six genera suggest that continuous gene flow occurs in hybrid zones. Reproductive isolation may greatly affect the dynamic and architecture of hybrid zones in the HMR. Asymmetrical hybridization and introgression can primarily be attributed to both prezygotic and postzygotic barriers. The frequent observation of such asymmetry may imply that reproductive barrier contributes to maintaining species boundaries in the alpine region. Ecological isolations with environmental disturbance may promote breeding barriers between parental species and hybrids. Hybrid zones may be an important phase for homoploid hybrid speciation. Hybrid zones potentially provided abundant genetic resources for the diversification of the HMR flora. The ecological and molecular mechanisms of control and mediation for natural hybridization will help biologists to understand the formation of biodiversity in the HMR. More researches from ecological and molecular aspects were required in future studies.

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Section: Factors Which Trigger Hybridization In the Hmrmentioning

confidence: 99%

Section: Homoploid Hybrid Speciation In the Hmrmentioning

confidence: 99%

Section: Hybrid Zones In the Hmrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Homoploid hybridization of plants in the Hengduan mountains region

Yang

Folk

Zhang

et al. 2019

Ecology and Evolution

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Prediction of potential distributions of Morina kokonorica and Morina chinensis in China

Yuan,

Zhang,

Yao

et al. 2024

Ecology and Evolution

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Changes in the habitats of species can provide insights into the impact of climate change on their habitats. Species in the genus Morina (Morinoideae) are perennial herbaceous plants that are mainly distributed in the South Asian Mountains and Eastern Mediterranean. In China, there are four species and two varieties of this genus distributed across the Yunnan, Sichuan, Qinghai, and Gansu provinces. This study used the optimal MaxEnt model to simulate past, current, and future potentially suitable habitats of Morina kokonorica and Morina chinensis. Seventy data of M. kokonorica occurrences and 3 of M. chinensis were used in the model to predict potentially suitable habitats. The model prediction results indicated that both M. kokonorica and M. chinensis exhibited trends of northward migration to higher latitudes and westward migration along the Himalayas to higher elevations, suggesting that the northern valleys of Hengduan Mountains and northern and eastern parts of the Himalayas were potential refugia for M. kokonorica, and the potential refugia for M. chinensis was located in the eastern part of Qinghai‐Tibet Plateau. The results of this niche analysis showed that the two species had higher levels of interspecific competition and that the environmental adaptability of M. chinensis was stronger. This research could help further understand the response pattern of Morina to environmental change, to understand the adaptability of species to the environment, and promote the protection of species.

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