Genetic discovery for oil production and quality in sesame

Wei, Xin; Liu, Kunyan; Zhang, Yanxin; Feng, Qi; Wang, Linhai; Zhao, Yan; Li, Donghua; Zhao, Qiang; Zhu, Xiaodong; Zhu, Xiaofeng; Li, Wenjun; Fan, Danlin; Gao, Yuan; Lu, Yiqi; Zhang, Xianmei; Tang, Xiaoyun; Zhou, Congcong; Zhu, Chuanrang; Liu, Lifeng; Zhong, Ruichun; Tian, Qifeng; Wen, Ziruo; Weng, Qijun; Han, Bin; Huang, Xuehui; Zhang, Xiurong

doi:10.1038/ncomms9609

Cited by 177 publications

(279 citation statements)

References 53 publications

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“…Zhongzhi13, Yuzhi11 and Swetha, S. indicum cv. Baizhima and Mishuozhima were downloaded from http://ocri-genomics.org/Sinbase_v2.0 (Wang et al ., ), https://www.ncbi.nlm.nih.gov/Traces/wgs/?val=MBSK01 (Kitts et al ., ), https://www.ncbi.nlm.nih.gov/Traces/wgs/?val=JPLX01 (Kitts et al ., ), and https://www.ebi.ac.uk/ena/data/view/ (Wei et al ., ) respectively. The genome data of Utricularia gibba PLAZA_v4 were downloaded from https://bioinformatics.psb.ugent.be (Ibarra‐Laclette et al ., ).…”

Section: Methodsmentioning

confidence: 96%

Insight into the evolution and functional characteristics of the pan‐genome assembly from sesame landraces and modern cultivars

Golicz

et al. 2018

Plant Biotechnology Journal

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Summary Sesame ( Sesamum indicum L.) is an important oil crop renowned for its high oil content and quality. Recently, genome assemblies for five sesame varieties including two landraces ( S. indicum cv. Baizhima and Mishuozhima) and three modern cultivars ( S. indicum var. Zhongzhi13, Yuzhi11 and Swetha), have become available providing a rich resource for comparative genomic analyses and gene discovery. Here, we employed a reference‐assisted assembly approach to improve the draft assemblies of four of the sesame varieties. We then constructed a sesame pan‐genome of 554.05 Mb. The pan‐genome contained 26 472 orthologous gene clusters; 15 409 (58.21%) of them were core (present across all five sesame genomes), whereas the remaining 41.79% (11 063) clusters and the 15 890 variety‐specific genes were dispensable. Comparisons between varieties suggest that modern cultivars from China and India display significant genomic variation. The gene families unique to the sesame modern cultivars contain genes mainly related to yield and quality, while those unique to the landraces contain genes involved in environmental adaptation. Comparative evolutionary analysis indicates that several genes involved in plant‐pathogen interaction and lipid metabolism are under positive selection, which may be associated with sesame environmental adaption and selection for high seed oil content. This study of the sesame pan‐genome provides insights into the evolution and genomic characteristics of this important oilseed and constitutes a resource for further sesame crop improvement.

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Section: Methodsmentioning

confidence: 96%

Insight into the evolution and functional characteristics of the pan‐genome assembly from sesame landraces and modern cultivars

Golicz

et al. 2018

Plant Biotechnology Journal

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“…Similarly, the gene SiACS ( SIN_1006338 ) coding for the number of capsule per axil was discovered and may be an important asset for yield improvement in sesame (Wei et al, 2015). Since the number of capsules per axil is related to the number of flowers per axil, Mei et al (2017) successfully mapped a gene SiFA (mono-flower vs. triple-flower) onto the LG11 flanked by the markers Marker58311 and Marker36337 .…”

Section: Application Of Newly Developed “Omics” Tools In Sesame Researchmentioning

confidence: 99%

The Emerging Oilseed Crop Sesamum indicum Enters the “Omics” Era

et al. 2017

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Sesame (Sesamum indicum L.) is one of the oldest oilseed crops widely grown in Africa and Asia for its high-quality nutritional seeds. It is well adapted to harsh environments and constitutes an alternative cash crop for smallholders in developing countries. Despite its economic and nutritional importance, sesame is considered as an orphan crop because it has received very little attention from science. As a consequence, it lags behind the other major oil crops as far as genetic improvement is concerned. In recent years, the scenario has considerably changed with the decoding of the sesame nuclear genome leading to the development of various genomic resources including molecular markers, comprehensive genetic maps, high-quality transcriptome assemblies, web-based functional databases and diverse daft genome sequences. The availability of these tools in association with the discovery of candidate genes and quantitative trait locis for key agronomic traits including high oil content and quality, waterlogging and drought tolerance, disease resistance, cytoplasmic male sterility, high yield, pave the way to the development of some new strategies for sesame genetic improvement. As a result, sesame has graduated from an “orphan crop” to a “genomic resource-rich crop.” With the limited research teams working on sesame worldwide, more synergic efforts are needed to integrate these resources in sesame breeding for productivity upsurge, ensuring food security and improved livelihood in developing countries. This review retraces the evolution of sesame research by highlighting the recent advances in the “Omics” area and also critically discusses the future prospects for a further genetic improvement and a better expansion of this crop.

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“…Its seeds have one of the highest oil contents (~ 55%) among major oilseed crops [7]. Beyond the traditional use of direct consumption, sesame seeds have diverse applications [8].…”

Section: Open Accessmentioning

confidence: 99%

Enhancing sesame production in West Africa’s Sahel: a comprehensive insight into the cultivation of this untapped crop in Senegal and Mali

et al. 2017

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Background: West Africa's Sahel is characterized by a dry and hot climate with limited rainfall that impairs the production of several crops. Sesame is a resilient crop that is well suited to this environment. Unfortunately, there is a lack of data relative to the status of its production in West Africa. We made investigations in four major sesame-growing areas of Senegal and Mali, into the status of the crop's production, its agronomic practices, the challenges farmers face and their preferences concerning the traits that should be improved.Results: A total of 256 sesame producers in 47 villages were interviewed using a semi-structured questionnaire. The results showed that sesame is a multi-ethnic crop and only 20% of the total fields owned by farmers were allocated to its cultivation. The yield and the seasonal production of sesame per farmer was quite weak showing that this crop is still a commodity grown on a small scale. Various cultivars were grown, and the most widely grown ones have considerable levels of oil (53-60.34%) and protein (18-21.89%) contents. In both countries, seed marketing was the main impediment the producers faced on account of a lack of reliable markets and of a considerable fluctuation in prices. Conclusions:Overall, the sesame sector is still traditional but is progressively developing and sesame could become an important cash crop for smallholders in West Africa's Sahel. Research programs should target the release of the varieties with higher yield, a stronger resistance to drought, heat, diseases and pests, a good seed quality and improved plant architecture. This study represents the first insight into the sesame sector in West Africa's Sahel, and our findings may guide researchers and policy-makers to boost this sector for ensuring food security and the improvement of small-scale farmers' livelihood.

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Genetic discovery for oil production and quality in sesame

Cited by 177 publications

References 53 publications

Insight into the evolution and functional characteristics of the pan‐genome assembly from sesame landraces and modern cultivars

Insight into the evolution and functional characteristics of the pan‐genome assembly from sesame landraces and modern cultivars

The Emerging Oilseed Crop Sesamum indicum Enters the “Omics” Era

Enhancing sesame production in West Africa’s Sahel: a comprehensive insight into the cultivation of this untapped crop in Senegal and Mali

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