De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance
<i>Jatropha curcas</i> is an important perennial, drought tolerant plant that has been identified as a potential biodiesel crop. We report here the hybrid de novo genome assembly of <i>J. curcas</i> generated using Illumina and PacBio sequencing technologies, and identificati...
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doaj-13a6648c4d1b4e1b9bad2367d1bcd3412020-11-24T23:52:02ZengMDPI AGGenes2073-44252019-01-011016910.3390/genes10010069genes10010069De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus ResistanceNagesh Kancharla0Saakshi Jalali1J. V. Narasimham2Vinod Nair3Vijay Yepuri4Bijal Thakkar5VB Reddy6Boney Kuriakose7Neeta Madan8Arockiasamy S9Reliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaAgriGenome Labs Private Limited, Hyderabad 500078, IndiaAgriGenome Labs Private Limited, Hyderabad 500078, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, IndiaReliance Technology Group, Reliance Industries Limited, Navi Mumbai 400701, India<i>Jatropha curcas</i> is an important perennial, drought tolerant plant that has been identified as a potential biodiesel crop. We report here the hybrid de novo genome assembly of <i>J. curcas</i> generated using Illumina and PacBio sequencing technologies, and identification of quantitative loci for <i>Jatropha</i> Mosaic Virus (JMV) resistance. In this study, we generated scaffolds of 265.7 Mbp in length, which correspond to 84.8% of the gene space, using Benchmarking Universal Single-Copy Orthologs (BUSCO) analysis. Additionally, 96.4% of predicted protein-coding genes were captured in RNA sequencing data, which reconfirms the accuracy of the assembled genome. The genome was utilized to identify 12,103 dinucleotide simple sequence repeat (SSR) markers, which were exploited in genetic diversity analysis to identify genetically distinct lines. A total of 207 polymorphic SSR markers were employed to construct a genetic linkage map for JMV resistance, using an interspecific F<sub>2</sub> mapping population involving susceptible <i>J. curcas</i> and resistant <i>Jatropha integerrima</i> as parents. Quantitative trait locus (QTL) analysis led to the identification of three minor QTLs for JMV resistance, and the same has been validated in an alternate F<sub>2</sub> mapping population. These validated QTLs were utilized in marker-assisted breeding for JMV resistance. Comparative genomics of oil-producing genes across selected oil producing species revealed 27 conserved genes and 2986 orthologous protein clusters in <i>Jatropha</i>. This reference genome assembly gives an insight into the understanding of the complex genetic structure of <i>Jatropha</i>, and serves as source for the development of agronomically improved virus-resistant and oil-producing lines.https://www.mdpi.com/2073-4425/10/1/69oil seedbiofuelEuphorbiaceaegenome sequencingtranscriptomicshybrid sequencingsimple sequence repeatslinkage mapgeminivirus |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nagesh Kancharla Saakshi Jalali J. V. Narasimham Vinod Nair Vijay Yepuri Bijal Thakkar VB Reddy Boney Kuriakose Neeta Madan Arockiasamy S |
spellingShingle |
Nagesh Kancharla Saakshi Jalali J. V. Narasimham Vinod Nair Vijay Yepuri Bijal Thakkar VB Reddy Boney Kuriakose Neeta Madan Arockiasamy S De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance Genes oil seed biofuel Euphorbiaceae genome sequencing transcriptomics hybrid sequencing simple sequence repeats linkage map geminivirus |
author_facet |
Nagesh Kancharla Saakshi Jalali J. V. Narasimham Vinod Nair Vijay Yepuri Bijal Thakkar VB Reddy Boney Kuriakose Neeta Madan Arockiasamy S |
author_sort |
Nagesh Kancharla |
title |
De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance |
title_short |
De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance |
title_full |
De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance |
title_fullStr |
De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance |
title_full_unstemmed |
De Novo Sequencing and Hybrid Assembly of the Biofuel Crop <i>Jatropha curcas</i> L.: Identification of Quantitative Trait Loci for Geminivirus Resistance |
title_sort |
de novo sequencing and hybrid assembly of the biofuel crop <i>jatropha curcas</i> l.: identification of quantitative trait loci for geminivirus resistance |
publisher |
MDPI AG |
series |
Genes |
issn |
2073-4425 |
publishDate |
2019-01-01 |
description |
<i>Jatropha curcas</i> is an important perennial, drought tolerant plant that has been identified as a potential biodiesel crop. We report here the hybrid de novo genome assembly of <i>J. curcas</i> generated using Illumina and PacBio sequencing technologies, and identification of quantitative loci for <i>Jatropha</i> Mosaic Virus (JMV) resistance. In this study, we generated scaffolds of 265.7 Mbp in length, which correspond to 84.8% of the gene space, using Benchmarking Universal Single-Copy Orthologs (BUSCO) analysis. Additionally, 96.4% of predicted protein-coding genes were captured in RNA sequencing data, which reconfirms the accuracy of the assembled genome. The genome was utilized to identify 12,103 dinucleotide simple sequence repeat (SSR) markers, which were exploited in genetic diversity analysis to identify genetically distinct lines. A total of 207 polymorphic SSR markers were employed to construct a genetic linkage map for JMV resistance, using an interspecific F<sub>2</sub> mapping population involving susceptible <i>J. curcas</i> and resistant <i>Jatropha integerrima</i> as parents. Quantitative trait locus (QTL) analysis led to the identification of three minor QTLs for JMV resistance, and the same has been validated in an alternate F<sub>2</sub> mapping population. These validated QTLs were utilized in marker-assisted breeding for JMV resistance. Comparative genomics of oil-producing genes across selected oil producing species revealed 27 conserved genes and 2986 orthologous protein clusters in <i>Jatropha</i>. This reference genome assembly gives an insight into the understanding of the complex genetic structure of <i>Jatropha</i>, and serves as source for the development of agronomically improved virus-resistant and oil-producing lines. |
topic |
oil seed biofuel Euphorbiaceae genome sequencing transcriptomics hybrid sequencing simple sequence repeats linkage map geminivirus |
url |
https://www.mdpi.com/2073-4425/10/1/69 |
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