Ancient Geographical Barriers Drive Differentiation among Sonneratia caseolaris Populations and Recent Divergence from S. lanceolata

Yang, Yuchen; Duke, Norman C.; Peng, Fangfang; Li, Jianfang; Yang, Shuhuan; Zhong, Cairong; Zhou, Renchao; Shi, Suhua

doi:10.3389/fpls.2016.01618

Cited by 19 publications

(21 citation statements)

References 67 publications

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“…For instance, the geographical distributions of Rhizophora species exhibit great variation, which were probably influenced by cyclical climate cooling (Graham, ), historical long‐distance dispersal (Lo, Duke, & Sun, ) and, perhaps, followed by subsequent divergent adaptation to their environments. Likewise, differences in the species ranges of Sonneratia might be the result of population isolation by historical land barriers (Yang et al, ) and subsequent trait divergence. However, the extent to which these geological‐scale processes influenced the current latitudinal ranges of mangroves remains to be investigated further in the future.…”

Section: Discussionmentioning

confidence: 99%

“…Likewise, differences in the species ranges of Sonneratia might be the result of population isolation by historical land barriers (Yang et al, 2016) and subsequent trait divergence. However, the extent to which these geological-scale processes influenced the current latitudinal ranges of mangroves remains to be investigated further in the future.…”

Section: Phylogenetic Pattern In the Mangrove Climate Nichementioning

confidence: 99%

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Winter temperature structures mangrove species distributions and assemblage composition in China

Ricklefs

Huang

et al. 2018

Global Ecol Biogeogr

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Aim The identification of environmental variables associated with geographical range limits can shed light on the ecological and physiological constraints imposed by abiotic stresses. Mangrove forest is a coastal ecosystem restricted to the tropics and subtropics. However, the factors that influence fine‐scale assemblage composition of mangroves remain an open question. This study aimed to identify range‐limiting climate factor(s) associated with species composition that are likely to have influenced the evolution of mangroves. Location China. Time period 1950s–2013. Major taxa studied True mangrove species. Methods We collected species presence–absence data across 70 sites spread between 18 and 27°N in China to analyse the latitudinal diversity gradient in relationship to 25 climate variables. To examine the change in community composition along the diversity gradient, we analysed two components of beta diversity: turnover‐resultant dissimilarity and nestedness‐resultant dissimilarity. We used non‐metric multidimensional scaling to identify crucial climate factors associated with variation in mangrove assemblage composition. We also applied variance partitioning among taxonomic ranks to detect taxonomic signal in climatic tolerance of mangroves. Results First, total species richness decreases with increasing latitude. Second, variation in mangrove assemblage composition is significantly correlated with winter temperature, exhibiting a nested subset structure in species composition and a gradual decrease in the number of thermophilic species with increasing latitude. Finally, mangrove species show a genus‐level signal in tolerance of winter temperature, whereas most other climate factors vary primarily among species within genera. Main conclusions Winter temperature appears to constrain the current distributions of mangrove species, and tolerance of low air temperature is evolutionarily conservative at the genus level. These ecological and phylogenetic patterns collectively suggest that physiological constraints related to cold tolerance structure the nested pattern with respect to the latitude of mangrove assemblages at a regional scale.

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Section: Discussionmentioning

confidence: 99%

Section: Phylogenetic Pattern In the Mangrove Climate Nichementioning

confidence: 99%

Winter temperature structures mangrove species distributions and assemblage composition in China

Ricklefs

Huang

et al. 2018

Global Ecol Biogeogr

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“…Most tropical species experienced a relatively moderate temperature in the Pleistocene. However, climatic oscillations have also significantly affected the genetic structure, population dynamics, and divergence of many extant global flora and fauna (Pauls et al, 2013;Yang et al, 2016;Mekonnen et al, 2018). Historical processes (e.g., the Ice Age) have left marked imprints on the genetic structure of extant species, especially for long-evolved organisms (Lo´pez-Pujol et al, 2011;Liu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Population Differentiation and Demographic History of the Cycas taiwaniana Complex (Cycadaceae) Endemic to South China as Indicated by DNA Sequences and Microsatellite Markers

Wang

Zhang

et al. 2019

Front. Genet.

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Historical geology, climatic oscillations, and seed dispersal capabilities are thought to influence the population dynamics and genetics of plants, especially for distribution-restricted and threatened species. Investigating the genetic resources within and among taxa is a prerequisite for conservation management. The Cycas taiwaniana complex consists of six endangered species that are endemic to South China. In this study, we investigated the relationship between phylogeographic history and the genetic structure of the C. taiwaniana complex. To estimate the phylogeographic history of the complex, we assessed the genetic structure and divergence time, and performed phylogenetic and demographic historical analyses. Two chloroplast DNA intergenic regions (cpDNA), two single-copy nuclear genes (SCNGs), and six microsatellite loci (SSR) were sequenced for 18 populations. The SCNG data indicated a high genetic diversity within populations, a low genetic diversity among populations, and significant genetic differentiation among populations. Significant phylogeographical structure was detected. Structure and phylogenetic analyses both revealed that the 18 populations of the C. taiwaniana complex have two main lineages, which were estimated to diverge in the Middle Pleistocene. We propose that Cycas fairylakea was incorporated into Cycas szechuanensis and that the other populations, which are mainly located on Hainan Island, merged into one lineage. Bayesian skyline plot analyses revealed that the C. taiwaniana complex experienced a recent decline, suggesting that the complex probably experienced a bottleneck event. We infer that the genetic structure of the C. taiwaniana complex has been affected by Pleistocene climate shifts, sea-level oscillations, and human activities. In addition to providing new insights into the evolutionary legacy of the genus, the genetic characterizations will be useful for the conservation of Cycas species.

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“…(Wee et al., ). Although this pattern is not universal—for instance, it was not detected in other Rhizophora (Yan et al., ) and Sonneratia (Yang et al., ) species—it indicates that common extrinsic factors, such as superficial ocean currents (Wee et al., ) and sea‐level fluctuations (Yan et al., ), have shaped the organization and distribution of genetic diversity.…”

Section: Introductionmentioning

confidence: 99%

Population genetic structure, introgression, and hybridization in the genus Rhizophora along the Brazilian coast

Francisco

Mori

Alves

et al. 2018

Ecology and Evolution

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Mangrove plants comprise plants with similar ecological features that have enabled them to adapt to life between the sea and the land. Within a geographic region, different mangrove species share not only similar adaptations but also similar genetic structure patterns. Along the eastern coast of South America, there is a subdivision between the populations north and south of the continent's northeastern extremity. Here, we aimed to test for this north‐south genetic structure in Rhizophora mangle, a dominant mangrove plant in the Western Hemisphere. Additionally, we aimed to study the relationships between R. mangle, R. racemosa, and R. × harrisonii and to test for evidence of hybridization and introgression. Our results confirmed the north‐south genetic structure pattern in R. mangle and revealed a less abrupt genetic break in the northern population than those observed in Avicennia species, another dominant and widespread mangrove genus in the Western Hemisphere. These results are consistent with the role of oceanic currents influencing sea‐dispersed plants and differences between Avicennia and Rhizophora propagules in longevity and establishment time. We also observed that introgression and hybridization are relevant biological processes in the northeastern coast of South America and that they are likely asymmetric toward R. mangle, suggesting that adaptation might be a process maintaining this hybrid zone.

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Ancient Geographical Barriers Drive Differentiation among Sonneratia caseolaris Populations and Recent Divergence from S. lanceolata

Cited by 19 publications

References 67 publications

Winter temperature structures mangrove species distributions and assemblage composition in China

Winter temperature structures mangrove species distributions and assemblage composition in China

Population Differentiation and Demographic History of the Cycas taiwaniana Complex (Cycadaceae) Endemic to South China as Indicated by DNA Sequences and Microsatellite Markers

Population genetic structure, introgression, and hybridization in the genus Rhizophora along the Brazilian coast

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