Does &amp;lt;i&amp;gt;Jatropha curcas&amp;lt;/i&amp;gt; L. show resistance to drought in the Sahelian zone of West Africa? A case study from Burkina Faso

Bayen, Philippe; Sop, Tene Kwetche; Lykke, Anne Mette; Thiombiano, Adjima

doi:10.5194/se-6-525-2015

Cited by 8 publications

(9 citation statements)

References 29 publications

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“…In addition, its solvents are used due to its therapeutic characteristics by people suffering from various skin diseases and sensitivity to regular soap [9]. All traits mentioned above make J. curcas one of the best candidate as a profitable biofuel crop species for restoring wastelands and 4 improving employment chances and subsistence in rural areas [10][11]. Additionally, the J. curcas seed cake, which is a waste by-product of the biodiesel trans-esterification process, can be used for the production of various supplies such as organic fertilizer, high-quality paper, energy pellets, soap, cosmetics, toothpaste, embalming fluid, pipe joint cement and cough medicine [12].J.…”

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confidence: 99%

Gene expression profiling identifies pathways involved in seed maturation of Jatropha curcas

Maghuly

Deák

Vierlinger

et al. 2020

Preprint

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Background: Jatropha curcas, a tropical shrub, is a promising biofuel crop, which produces seeds with high content of oil and protein. To better understand the maturation process of J. curcas seeds and to improve its agronomic performance, a two-step approach was performed in six different maturation stages of seeds: 1) generation of the entire transcriptome of J. curcas seeds using 454-Roche sequencing of a cDNA library, 2) comparison of transcriptional expression levels using a custom Agilent 8x60K oligonucleotide microarray. Results: A total of 793,875 high-quality reads were assembled into 19,382 unique full-length contigs, of which 13,507 could be annotated with Gene Ontology (GO) terms. Microarray data analysis identified 9,111 probes (out of 57,842 probes), which were differentially expressed between the six maturation stages. The expression results were validated for 75 selected transcripts based on expression levels, predicted function, pathway, and length. Result from cluster analyses showed that transcripts associated with fatty acid, flavonoid, and phenylpropanoid biosynthesis were over-represented in the early stages, while those of lipid storage were over-represented in the late stages. Expression analyses of different maturation stages of J. curcas seed showed that most changes in transcript abundance occurred between the two last stages, suggesting that the timing of metabolic pathways during seed maturation in J. curcas occurs in late stages. The co-expression results showed that the hubs (CB5-D, CDR1, TT8, DFR, HVA22) with the highest number of edges, associated with fatty acid and flavonoid biosynthesis, are showing a decrease in their expression during seed maturation. Furthermore, seed development and hormone pathways are significantly well connected. Conclusion: The obtained results revealed differentially expressed sequences (DESs) regulating important pathways related to seed maturation, which could contribute to the understanding of the complex regulatory network during seed maturation with the focus on lipid, flavonoid and phenylpropanoid biosynthesis. This study provides detailed information on transcriptional changes during J. curcas seed maturation and provides a starting point for a genomic survey of seed quality traits. The results highlighted specific genes and processes relevant to the molecular mechanisms involved in Jatropha seed maturation. These data can also be utilized regarding other Euphorbiaceae species.

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confidence: 99%

Gene expression profiling identifies pathways involved in seed maturation of Jatropha curcas

Maghuly

Deák

Vierlinger

et al. 2020

Preprint

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“…Land degradation is one of the most important global environmental issues threatening the survival of more than 250 million people in the arid and semiarid regions of developing countries (Bayen et al, 2015). Droughts can affect the vegetation growth and soil properties and then induce land degradation issues (Bayen et al, 2015;Hedo de Santiago et al, 2015), including desertification, soil fertility Jan 3·3 1·1 20·4 28·3 0·3 6·1 8·5 Feb 5·3 4·1 30·9 38·4 0·8 5·8 7·2 Mar 12·7 10·2 62·1 66·7 0·8 4·9 5·3 Apr 22·4 19·6 102·7 102·4 0·9 4·6 4·6 May 40·7 45·2 141·3 137·1 1·1 3·5 3·4 Jun 54·3 65·1 157·1 150·4 1·2 2·9 2·8 Jul 90·8 93·4 158·3 152·8 1·0 1·7 1·7 Aug 90·0 94·8 136·8 135·5 1·1 1·5 1·5 Sep 62·1 56·0 97·8 100·5 0·9 1·6 1·6 Oct 29·2 23·4 65·5 71·8 0·8 2·2 2·5 Nov 9·6 6·4 35·2 45·6 0·7 3·7 4·7 Dec 2·9 1·5 21·3 26·7 0·5 7·3 9·2 Total 423·3 420·7 1029·4 1056·3 1·0 2·4 2·5 Figure 11.…”

Section: Discussionmentioning

confidence: 99%

An Evaluation of the Performance and the Contribution of Different Modified Water Demand Estimates in Drought Modeling Over Water‐stressed Regions

Zhang

Long

et al. 2016

Land Degrad Dev

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The lack of reliable estimation of water demand in drought study has been an important obstacle in efforts for characterizing the variability of water consumption and its effects on drought monitoring and prediction, particularly over water‐stressed regions. This study evaluated the performance and the contribution of three modified water demand estimates in drought modeling, including Penman–Monteith (PM) method, dual‐source potential evapotranspiration model (2S PET model), and climatically appropriate for existing conditions precipitation ( trueP^). The results show that Standardized Moisture Anomaly Index based on trueP^ shows the highest correlations with different types of drought evidence, demonstrating that the trueP^ as a water demand metric performs the best in drought modeling over water‐stressed regions. Standardized Precipitation Evapotranspiration Index based on 2S PET model performs better than that based on PM equation. Although the 2S PET model is physically superior to PM equation over agricultural or water‐stress regions where the plant canopy is not “closed,” the limitations of using PET as water demand estimates in drought study still exist. Theoretically speaking, the actual water demand in non‐humid regions should be highly associated with the climatically averaged water supply capability (precipitation, P), and the contributions of water demand and supply to drought indices are generally balanced in any region, which is realistically reflected by the relationships between P and trueP^. On the contrary, the magnitude and contribution of PET2S and PETPM were always higher than P over water‐stressed regions, which could result in a water imbalance and generate more systemic errors in drought identification. Copyright © 2016 John Wiley & Sons, Ltd.

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“…Environmental protection and proper land use are some of the main concerns of mankind. Land degradation and dust are important environmental problems increased by climate change and drought occurring with urbanization and industrialization, which threaten the survival of more than 250 million people living in arid lands [1][2]. They affecting many problems created regarding health, social and economic impact of sustainable development.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, because of its therapeutic characteristics, people with various skin diseases and sensitivity to regular soap [12] use its solvents. All traits mentioned above make J. curcas one of the best candidate as a profitable biofuel crop species for restoring wastelands and improving employment chances and subsistence in rural areas [1,13].…”

Section: Introductionmentioning

confidence: 99%

Gene expression profiling identifies pathways involved in seeds maturation of Jatropha curcas

Maghuly

Deák

Vierlinger

et al. 2019

Preprint

View full text Add to dashboard Cite

Background: Jatropha curcas, a tropical shrub, is a promising biofuel crop, which produces seeds with a high content of oil and protein. To better understand the development of its seeds to improve Jatropha`s agronomic performance, a two-step approach was performed: 1) generation of the entire transcriptome of six different maturation stages of J. curcas seeds using 454-Roche sequencing of a cDNA library, 2) comparison of transcriptional expression levels in six different developmental stages of seeds using a custom Agilent 8x60K oligonucleotide microarray. Results: A total of 793,875 high-quality reads were assembled into 19,841 unique full-length contigs, of which 13,705 could be annotated with Gene Ontology (GO) terms. Microarray data analysis identified 9,111 probes (out of 57,842 probes), which were differentially expressed between the six developmental stages. The expression results were validated for 70 randomly selected putative genes. Result from cluster analyses showed that transcripts related to sucrose, fatty acid, flavonoid, phenylpropanoid, lignin, hormone biosynthesis were over-represented in the early stage, while lipid storage, seed dormancy and maturation in the late stage. Generally, the expression of the most over-represented transcripts decrease in the last stage of seed maturation. Further, expression analyses of different maturation stages of J. curcas seed showed that most changes in transcript abundance occurred between the two last stages, suggesting that the timing of metabolic pathways during seed maturation in J. curcas is in late stages. The co-expression result showed a high degree of connectivity between genes that play essential role in fatty acid biosynthesis and nutrient mobilization. Furthermore, seed development and hormone pathways are significantly well connected. Conclusion: The obtained results revealed DESs regulating important pathways related to seed maturation, which could contribute to understanding the complex regulatory network during seed development. This study provides detailed information on transcription changes during J. curcas seed development and provides a starting point for a genomic survey of seed quality traits. The current results highlighted specific genes and processes relevant to the molecular mechanisms involved in Jatropha seed development, and it is anticipated that this data can be delivered to other Euphorbiaceae species of economic value.

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Does <i>Jatropha curcas</i> L. show resistance to drought in the Sahelian zone of West Africa? A case study from Burkina Faso

Cited by 8 publications

References 29 publications

Gene expression profiling identifies pathways involved in seed maturation of Jatropha curcas

Gene expression profiling identifies pathways involved in seed maturation of Jatropha curcas

An Evaluation of the Performance and the Contribution of Different Modified Water Demand Estimates in Drought Modeling Over Water‐stressed Regions

Gene expression profiling identifies pathways involved in seeds maturation of Jatropha curcas

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