Water Deficit Transcriptomic Responses Differ in the Invasive Tamarix chinensis and T. ramosissima Established in the Southern and Northern United States

Swaminathan, Padmapriya; Ohrtman, Michelle K.; Carinder, Abigail; Deuja, Anup; Wang, Cankun; Gaskin, John F.; Fennell, Anne; Clay, Sharon A.

doi:10.3390/plants9010086

Cited by 11 publications

(8 citation statements)

References 73 publications

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“…In terms of the cellular component category, the membrane is an important structure that indirectly or directly perceives stimulation to initiate signal trans-duction. For instance, several membrane genes are upregulated in Tamarix ramosissima in response to water deficiency [111].…”

Section: Role Of Adaptive Genes In M Micranthamentioning

confidence: 99%

Population Genomics Reveals Gene Flow and Adaptive Signature in Invasive Weed Mikania micrantha

Ruan

Wang

et al. 2021

Genes

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A long-standing and unresolved issue in invasion biology concerns the rapid adaptation of invaders to nonindigenous environments. Mikania micrantha is a notorious invasive weed that causes substantial economic losses and negative ecological consequences in southern China. However, the contributions of gene flow, environmental variables, and functional genes, all generally recognized as important factors driving invasive success, to its successful invasion of southern China are not fully understood. Here, we utilized a genotyping-by-sequencing approach to sequence 306 M. micrantha individuals from 21 invasive populations. Based on the obtained genome-wide single nucleotide polymorphism (SNP) data, we observed that all the populations possessed similar high levels of genetic diversity that were not constrained by longitude and latitude. Mikania micrantha was introduced multiple times and subsequently experienced rapid-range expansion with recurrent high gene flow. Using FST outliers, a latent factor mixed model, and the Bayesian method, we identified 38 outlier SNPs associated with environmental variables. The analysis of these outlier SNPs revealed that soil composition, temperature, precipitation, and ecological variables were important determinants affecting the invasive adaptation of M. micrantha. Candidate genes with outlier signatures were related to abiotic stress response. Gene family clustering analysis revealed 683 gene families unique to M. micrantha which may have significant implications for the growth, metabolism, and defense responses of M. micrantha. Forty-one genes showing significant positive selection signatures were identified. These genes mainly function in binding, DNA replication and repair, signature transduction, transcription, and cellular components. Collectively, these findings highlight the contribution of gene flow to the invasion and spread of M. micrantha and indicate the roles of adaptive loci and functional genes in invasive adaptation.

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Section: Role Of Adaptive Genes In M Micranthamentioning

confidence: 99%

Population Genomics Reveals Gene Flow and Adaptive Signature in Invasive Weed Mikania micrantha

Ruan

Wang

et al. 2021

Genes

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“…Tamarixramosissima has long been regarded as a C 3 plant. However, all the core genes of C 4 carbon fixation were found not only in the two Tamarix species T. chinensis and T. ramosissima ( Swaminathan et al 2020 ), but also in another species in the same family: R. soongorica ( Shi et al 2013 ). Thus, Tamarix species have the molecular basis to utilize C 4 carbon fixation together with the C 3 pathway.…”

Section: Discussionmentioning

confidence: 99%

“…However, variations in the δ 13 C value caused by the influence of temperature, wind speed, precipitation and relative humidity (RH) ( Zhang et al 2018 ) also reflect conversion of water use strategy. In addition, a complete set of core genes of C 4 carbon fixation were found not only in the two Tamarix species, namely, T. ramosissima and Tamarix chinensis ( Swaminathan et al 2020 ), but also in Reaumuria soongorica , which belongs to the same family as Tamarix spp. according to transcriptome profiling data ( Shi et al 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome profiling reveals that foliar water uptake occurs with C3 and crassulacean acid metabolism facultative photosynthesis inTamarix ramosissimaunder extreme drought

et al. 2022

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Tamarix ramosissima is a typical desert plant species that is widely distributed in the desert areas of Northwest China. It plays a significant role in sand fixation and soil water conservation. In particular, how it uses water to survive in the desert plays an important role in plant growth and ecosystem function. Previous studies have revealed that T. ramosissima can alleviate drought by absorbing water from its leaves under extreme drought conditions. To date, there is no clear molecular regulation mechanism to explain foliar water uptake (FWU). In the present study, we correlated diurnal meteorological data, sap flow and photosynthetic parameters to determine the physical and biological characteristics of FWU. Our results suggested that the lesser the groundwater, the easier it is for T. ramosissima to absorb water via the leaves. Gene ontology annotation and Kyoto Encyclopaedia of Genes and Genomes pathway analysis of the transcriptome profile of plants subjected to high humidity suggested that FWU was highly correlated to carbohydrate metabolism, energy transfer, pyruvate metabolism, hormone signal transduction and plant–pathogen interaction. Interestingly, as a C3 plant, genes such as PEPC, PPDK, MDH and RuBP, which are involved in crassulacean acid metabolism (CAM) photosynthesis, were highly upregulated and accompanied by FWU. Therefore, we proposed that in the case of sufficient water supply, C3 photosynthesis is used in T. ramosissima, whereas in cases of extreme drought, starch is degraded to provide CO2 for CAM photosynthesis to make full use of the water obtained via FWU and the water that was transported or stored to assimilating branches and stems. This study may provide not only an important theoretical foundation for FWU and conversion from C3 plants to CAM plants but also for engineering improved photosynthesis in high-yield drought-tolerant plants and mitigation of climate change-driven drought.

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“…By understanding plant adaptive responses from a physiological, molecular, and genetic perspective, we can expand our knowledge of how leaves adapt to abiotic stress (Song et al, 2014). Such identi cation of physiological and genetic responses can be particularly helpful in crop management, especially when new cultivation systems are adopted (Swaminathan et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Ca++ particle films on sweet potato plants: Repression of the cdc2a gene and alterations in leaf anatomy under photo-protection

Ferreira

Oliveira

Júnior

et al. 2023

Preprint

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Water restriction combined with strong sunlight can affect the growth and development of crops. Activation of potential stress-associated genes and specific changes in leaf structure can be critical adaptive responses in controlling unfavorable climatic conditions. This work evaluated the expression of the cdc2a gene and leaf anatomical alterations in sweet potato plants photo-protected with Calcium particle film with and without water restriction. Assessments were performed at 12:00, focusing on gas exchange, temperature (air-leaf), Falker index, chlorophyll a fluorescence, gene expression (cdc2a), and leaf anatomy. The protection of plants regarding gas exchange contributed to the potential increase in photosynthetic rate (A) and a more significant difference between air and leaf temperatures (Dif ºC), as positive responses in the adaptive adjustment. There was a reduction in the fluorescence of chlorophyll a, related to the maximum cross-section ABS/CSm, TR0/CSm, RE0/CSm, ET0/CSm, DI0/CSm, and a significant increase in the effective quantum yield (ɸPSII), transport rate (ETR), maximum quantum yield (Fv/Fm), and photochemical quenching (qP). There was the repression of the cdc2a gene, allied to the physiological responses associated with light-intensity stress. Anatomical changes related to climate adaptation occurred for the treatments; and photoprotection with CaO minimized the deleterious effects during the development of sweet potato plants, mainly in the developmental stage of roots.

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Water Deficit Transcriptomic Responses Differ in the Invasive Tamarix chinensis and T. ramosissima Established in the Southern and Northern United States

Cited by 11 publications

References 73 publications

Population Genomics Reveals Gene Flow and Adaptive Signature in Invasive Weed Mikania micrantha

Population Genomics Reveals Gene Flow and Adaptive Signature in Invasive Weed Mikania micrantha

Transcriptome profiling reveals that foliar water uptake occurs with C3 and crassulacean acid metabolism facultative photosynthesis inTamarix ramosissimaunder extreme drought

Ca++ particle films on sweet potato plants: Repression of the cdc2a gene and alterations in leaf anatomy under photo-protection

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