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Repetitive Sequence Barcode Probe for Karyotype Analysis in Tripidium arundinaceum. Int J Mol Sci 2022; 23:ijms23126726. [PMID: 35743180 PMCID: PMC9224303 DOI: 10.3390/ijms23126726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/10/2022] [Accepted: 06/14/2022] [Indexed: 11/17/2022] Open
Abstract
The barcode probe is a convenient and efficient tool for molecular cytogenetics. Tripidium arundinaceum, as a polyploid wild allied genus of Saccharum, is a useful genetic resource that confers biotic and abiotic stress resistance for sugarcane breeding. Unfortunately, the basic cytogenetic information is still unclear due to the complex genome. We constructed the Cot-20 library for screening moderately and highly repetitive sequences from T. arundinaceum, and the chromosomal distribution of these repetitive sequences was explored. We used the barcode of repetitive sequence probes to distinguish the ten chromosome types of T. arundinaceum by fluorescence in situ hybridization (FISH) with Ea-0907, Ea-0098, and 45S rDNA. Furthermore, the distinction among homology chromosomes based on repetitive sequences was constructed in T. arundinaceum by the repeated FISH using the barcode probes including Ea-0663, Ea-0267, EaCent, 5S rDNA, Ea-0265, Ea-0070, and 45S rDNA. We combined these probes to distinguish 37 different chromosome types, suggesting that the repetitive sequences may have different distributions on homologous chromosomes of T. arundinaceum. In summary, this method provide a basis for the development of similar applications for cytogenetic analysis in other species.
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Li X, Huang F, Chai J, Wang Q, Yu F, Huang Y, Wu J, Wang Q, Xu L, Zhang M, Deng Z. Chromosome behavior during meiosis in pollen mother cells from Saccharum officinarum × Erianthus arundinaceus F 1 hybrids. BMC PLANT BIOLOGY 2021; 21:139. [PMID: 33726673 PMCID: PMC7968283 DOI: 10.1186/s12870-021-02911-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND In recent years, sugarcane has attracted increasing attention as an energy crop. Wild resources are widely used to improve the narrow genetic base of sugarcane. However, the infertility of F1 hybrids between Saccharum officinarum (S. officinarum) and Erianthus arundinaceus (E. arundinaceus) has hindered sugarcane breeding efforts. To discover the cause of this infertility, we studied the hybridization process from a cytological perspective. RESULTS We examined the meiotic process of pollen mother cells (PMCs) in three F1 hybrids between S. officinarum and E. arundinaceus. Cytological analysis showed that the male parents, Hainan 92-77 and Hainan 92-105, had normal meiosis. However, the meiosis process in F1 hybrids showed various abnormal phenomena, including lagging chromosomes, micronuclei, uneven segregation, chromosome bridges, and inability to form cell plates. Genomic in situ hybridization (GISH) showed unequal chromatin distribution during cell division. Interestingly, 96.70% of lagging chromosomes were from E. arundinaceus. Furthermore, fluorescence in situ hybridization (FISH) was performed using 45S rDNA and 5S rDNA as probes. Either 45S rDNA or 5S rDNA sites were lost during abnormal meiosis, and results of unequal chromosomal separation were also clearly observed in tetrads. CONCLUSIONS Using cytogenetic analysis, a large number of meiotic abnormalities were observed in F1. GISH further confirmed that 96.70% of the lagging chromosomes were from E. arundinaceus. Chromosome loss was found by further investigation of repeat sequences. Our findings provide insight into sugarcane chromosome inheritance to aid innovation and utilization in sugarcane germplasm resources.
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Affiliation(s)
- Xueting Li
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Fei Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Jin Chai
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Qiusong Wang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Fan Yu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Yongji Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Jiayun Wu
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangdong Provincial Bioengineering Institute, Guangzhou, China
| | - Qinnan Wang
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Liangnian Xu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China
| | - Muqing Zhang
- State Key Laboratory for Protection and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, China
| | - Zuhu Deng
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian, China.
- State Key Laboratory for Protection and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, China.
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Sobhakumari VP, Mohanraj K, Nair NV, Mahadevaswamy HK, Ram B. Cytogenetic and Molecular Approaches to Detect Alien Chromosome Introgression and Its Impact in Three Successive Generations of Erianthus procerus × Saccharum. CYTOLOGIA 2020. [DOI: 10.1508/cytologia.85.341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | | | | | | | - Bakshi Ram
- Crop Improvement Division, ICAR-Sugarcane Breeding Institute
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Peter SC, Murugan N, Mohanan MV, Sasikumar SPT, Selvarajan D, Jayanarayanan AN, Shivalingamurthy SG, Chennappa M, Ramanathan V, Govindakurup H, Ram B, Chinnaswamy A. Isolation, characterization and expression analysis of stress responsive plant nuclear transcriptional factor subunit ( NF-YB2) from commercial Saccharum hybrid and wild relative Erianthus arundinaceus. 3 Biotech 2020; 10:304. [PMID: 32566442 DOI: 10.1007/s13205-020-02295-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 06/07/2020] [Indexed: 12/26/2022] Open
Abstract
Plant nuclear factor (NF-Y) is a transcription activating factor, consisting of three subunits, and plays a key regulatory role in many stress-responsive mechanisms including drought and salinity stresses. NF-Ys function both as complex and individual subunits. Considering the importance of sugarcane as a commercial crop with high socio-economic importance and the crop being affected mostly by water deficit stress and salinity stress causing significant yield loss, nuclear transcriptional factor NF-YB2 was focused in this study. Plant nuclear factor subunit B2 from Erianthus arundinaceus (EaNF-YB2), a wild relative of sugarcane which is known for its drought and salinity stress tolerance, and commercial Saccharum hybrid Co 86032 (ShNF-YB2) was isolated and characterized. Both EaNF-YB2 and ShNF-YB2 genes are 543 bp long that encodes for a polypeptide of 180 amino acid residues. Comparison of EaNF-YB2 and ShNF-YB2 gene sequences revealed nucleotide substitutions at nine positions corresponding to three synonymous and six nonsynonymous amino acid substitutions that resulted in variations in physiochemical properties. However, multiple sequence alignment (MSA) of NF-YB2 proteins showed conservation of functionally important amino acid residues. In silico analysis revealed NF-YB2 to be a hydrophilic and intracellular protein, and EaNF-YB2 is thermally more stable than that of ShNF-YB2. Phylogenetic analysis suggested the lower rate of evolution of NF-YB2. Subcellular localization in sugarcane callus revealed NF-YB2 localization at nucleus that further evidenced it to be a transcription activation factor. Comparative RT-qPCR experiments showed a significantly higher level of NF-YB2 expression in E. arundinaceus when compared to that in the commercial Saccharum hybrid Co 86032 under drought and salinity stresses. Hence, EaNF-YB2 could be an ideal candidate gene, and its overexpression in sugarcane through genetic engineering approach might enhance tolerance to drought and salinity stresses.
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Affiliation(s)
- Swathik Clarancia Peter
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | - Naveenarani Murugan
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | | | | | - Dharshini Selvarajan
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | | | | | - Mahadevaiah Chennappa
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | - Valarmathi Ramanathan
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | - Hemaprabha Govindakurup
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | - Bakshi Ram
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
| | - Appunu Chinnaswamy
- Division of Crop Improvement, ICAR Sugarcane Breeding Institute, Tamil Nadu, Coimbatore, 641007 India
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Shingote PR, Kawar PG, Pagariya MC, Muley AB, Babu KH. Isolation and functional validation of stress tolerant EaMYB18 gene and its comparative physio-biochemical analysis with transgenic tobacco plants overexpressing SoMYB18 and SsMYB18. 3 Biotech 2020; 10:225. [PMID: 32373417 PMCID: PMC7196118 DOI: 10.1007/s13205-020-02197-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 04/07/2020] [Indexed: 01/17/2023] Open
Abstract
MYB transcription factors are one of the most important mediators for the survival of plants under multiple stress responses. In the present study, EaMYB18, encoding a single R3 repeat MYB DNA binding domain was isolated from stress-tolerant wild relative species of sugarcane Erianthus arundinaceus. In silico analysis of 948 bp coding mRNA sequence of EaMYB18 exhibited the presence of four exons and three introns. Further, the EaMYB18 gene was transformed in tobacco and its stable inheritance was confirmed through antibiotic resistance screening, PCR amplification and Southern hybridization blotting. Results of the estimation of MDA, proline, total chlorophyll and antioxidant activities of EaMYB18 transgenic tobacco lines exhibited least oxidative damage under drought and cold stress over the untransformed ones, the over-expression of EaMYB18 has improved drought and cold stress tolerance ability in tobacco. The comparative physiological and biochemical analysis of transgenic tobacco plants overexpressing SoMYB18, SsMYB18 and EaMYB18, revealed that the EaMYB18 and SsMYB18 transgenic plants demonstrated effective tolerance to drought and cold stresses, while SoMYB18 showed improved tolerance to salt stress alone. Amongst these three genes, EaMYB18 displayed the highest potential for drought and cold stress tolerances as compared to SoMYB18 and SsMYB18 genes.
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Affiliation(s)
- Prashant Raghunath Shingote
- Molecular Biology and Genetic Engineering Division, Vasantdada Sugar Institute, Manjari (Bk), Tal. Haveli, Pune, Maharashtra 412307 India
- Vasantrao Naik College of Agricultural Biotechnology, Waghapur Road, Yavatmal, Maharashtra 445001 India
- Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra 416004 India
| | - Prashant Govindrao Kawar
- Molecular Biology and Genetic Engineering Division, Vasantdada Sugar Institute, Manjari (Bk), Tal. Haveli, Pune, Maharashtra 412307 India
- ICAR-Directorate of Floriculture Research, College of Agricultural Campus, Shivaji Nagar, Pune, Maharashtra 411005 India
- Department of Biotechnology, Shivaji University, Kolhapur, Maharashtra 416004 India
| | - Madhuri Chandrakant Pagariya
- Molecular Biology and Genetic Engineering Division, Vasantdada Sugar Institute, Manjari (Bk), Tal. Haveli, Pune, Maharashtra 412307 India
- Department of Botany, BJS Arts, Science and Commerce College, Bakori Phata, Wagholi, Pune, Maharashtra 412207 India
| | - Abhijeet Bhimrao Muley
- Molecular Biology and Genetic Engineering Division, Vasantdada Sugar Institute, Manjari (Bk), Tal. Haveli, Pune, Maharashtra 412307 India
| | - K. H. Babu
- Molecular Biology and Genetic Engineering Division, Vasantdada Sugar Institute, Manjari (Bk), Tal. Haveli, Pune, Maharashtra 412307 India
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Bhuiyan SA, Garlick K, Piperidis G. Saccharum spontaneum, a Novel Source of Resistance to Root-Lesion and Root-Knot Nematodes in Sugarcane. PLANT DISEASE 2019; 103:2288-2294. [PMID: 31287776 DOI: 10.1094/pdis-02-19-0385-re] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Root-lesion nematode (Pratylenchus zeae) and root-knot nematode (Meloidogyne javanica) are two important pathogens of sugarcane (Saccharum hybrid). No commercial cultivars are resistant to these nematodes in Australia. Twenty accession lines of S. spontaneum, a wild relative of sugarcane, were tested against these two nematode species. S. spontaneum lines were tested twice for resistance to root-lesion nematode and three times for root-knot nematode. Reproduction (final population/starting population) of root-lesion nematodes was significantly lower in 17 of the 20 S. spontaneum accession lines tested in two experiments compared with two commercial cultivars. Four S. spontaneum lines supported a significantly lower number of root-lesion nematodes per gram of root than that of two commercial sugarcane cultivars. Reproduction of root-knot nematodes was significantly lower in 16 S. spontaneum lines compared with two commercial cultivars. Fourteen of the S. spontaneum lines tested supported significantly fewer eggs per gram of root compared with two commercial cultivars. This study showed that S. spontaneum lines possessed resistance for root-lesion and root-knot nematodes. Targeted crossing with commercial hybrid parental lines should be conducted to introduce nematode resistance into sugarcane cultivars for the Australian sugar industry.
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Affiliation(s)
- Shamsul A Bhuiyan
- Woodford Pathology Farm, Sugar Research Australia, Woodford, Queensland, Australia
- School of Agriculture and Food Sciences, University of Queensland, Gatton, Queensland, Australia
| | - Kylie Garlick
- Woodford Pathology Farm, Sugar Research Australia, Woodford, Queensland, Australia
| | - George Piperidis
- Mackay Research Station, Sugar Research Australia, Mackay, Queensland, Australia
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Pachakkil B, Terajima Y, Ohmido N, Ebina M, Irei S, Hayashi H, Takagi H. Cytogenetic and agronomic characterization of intergeneric hybrids between Saccharum spp. hybrid and Erianthus arundinaceus. Sci Rep 2019; 9:1748. [PMID: 30742000 PMCID: PMC6370852 DOI: 10.1038/s41598-018-38316-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 12/21/2018] [Indexed: 11/09/2022] Open
Abstract
In sugarcane (Saccharum spp. hybrid) breeding, introgression of useful genes via intergeneric hybridization is a powerful strategy for improving the crop productivity. Erianthus arundinaceus shows great potential in terms of useful traits; however, little is known about the cytogenetic and agronomic characteristics of intergeneric hybrids between these two species. Here, we examine the cytogenetic and agronomic characteristics, and relationships between the two in intergeneric F1 hybrids between modern sugarcane cultivar and E. arundinaceus identified by amplification of 5S rDNA markers and morphological characteristics. The nuclear DNA content of the hybrids varied from 6.07 to 8.94 pg/2C, with intra-clonal variation in DNA content and 5S rDNA sites. Genomic in situ hybridization revealed 53 to 82 chromosomes in the hybrids, with 53 to 56 derived from sugarcane and 1 to 29 from E. arundinaceus. There were significant positive correlations between the number of E. arundinaceus chromosomes and dry matter yield, millable stalk weight, single stalk weight, and stalk diameter, but not sucrose content, reducing sugar content, sucrose/reducing sugar ratio or fiber content. This detailed information on intergeneric F1 hybrids between modern sugarcane cultivar and E. arundinaceus will contribute to effective utilization of E. arundinaceus in sugarcane breeding.
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Affiliation(s)
- Babil Pachakkil
- Tropical Agriculture Research Front, Japan International Research Center for Agricultural Sciences, Ishigaki, 907-0002, Japan.,Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Yoshifumi Terajima
- Tropical Agriculture Research Front, Japan International Research Center for Agricultural Sciences, Ishigaki, 907-0002, Japan.
| | - Nobuko Ohmido
- Graduate School of Human Development and Environment, Kobe University, Kobe, 657-8501, Japan
| | - Masumi Ebina
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Nasushiobara, 329-2793, Japan
| | - Shin Irei
- Okinawa Prefectural Agricultural Research Center, Itoman, 901-0336, Japan
| | | | - Hiroko Takagi
- Tropical Agriculture Research Front, Japan International Research Center for Agricultural Sciences, Ishigaki, 907-0002, Japan
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8
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Characterization analysis of the 35S rDNA intergenic spacers in Erianthus arundinaceus. Gene 2019; 694:63-70. [PMID: 30716441 DOI: 10.1016/j.gene.2019.01.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/03/2019] [Accepted: 01/07/2019] [Indexed: 11/21/2022]
Abstract
The 35S ribosomal DNA (rDNA) units that occur in tandem repeat are separated by an intergenic spacer (IGS) that plays an important role in rRNA transcription. Moreover, IGS is an important molecular marker for evolutionary research in plants. In the present study, the IGS sequence of Erianthus arundinaceus was isolated and sequenced for the first time. Structure analysis indicated the entire IGS sequence of three typical E. arundinaceus genotypes was highly conserved, with approximately 3087 bp and 67.1% mean GC content. The putative transcription termination, and initiation sites as well as a large number of methylation sites were found to be present in the IGS of E. arundinaceus compared to other plants. The phylogenic tree constructed using the E. arundinaceus IGS sequence showed that Miscanthus sinensis var. glaber was genetically close to Saccharum spp. while E. arundinaceus was close to Imperata cylindrica. Moreover, fluorescent in situ hybridization revealed that IGS and pTa71 probes had the same locus at nucleolar organizer regions. Taken together, this work enhances our current understanding of the organization of IGS in E. arundinaceus and provides a molecular evidence for an evolutionary relationship between Saccharum spp., E. arundinaceus, I. cylindrica and M. sinensis var. glaber.
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9
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Yu F, Huang Y, Luo L, Li X, Wu J, Chen R, Zhang M, Deng Z. An improved suppression subtractive hybridization technique to develop species-specific repetitive sequences from Erianthus arundinaceus (Saccharum complex). BMC PLANT BIOLOGY 2018; 18:269. [PMID: 30400857 PMCID: PMC6220460 DOI: 10.1186/s12870-018-1471-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 10/05/2018] [Indexed: 05/17/2023]
Abstract
BACKGROUND Sugarcane has recently attracted increased attention for its potential as a source of bioethanol and methane. However, a narrow genetic base has limited germplasm enhancement of sugarcane. Erianthus arundinaceus is an important wild genetic resource that has many excellent traits for improving cultivated sugarcane via wide hybridization. Species-specific repetitive sequences are useful for identifying genome components and investigating chromosome inheritance in noblization between sugarcane and E. arundinaceus. Here, suppression subtractive hybridization (SSH) targeting E. arundinaceus-specific repetitive sequences was performed. The five critical components of the SSH reaction system, including enzyme digestion of genomic DNA (gDNA), adapters, digested gDNA concentrations, primer concentrations, and LA Taq polymerase concentrations, were improved using a stepwise optimization method to establish a SSH system suitable for obtaining E. arundinaceus-specific gDNA fragments. RESULTS Specificity of up to 85.42% was confirmed for the SSH method as measured by reverse dot blot (RDB) of an E. arundinaceus subtractive library. Furthermore, various repetitive sequences were obtained from the E. arundinaceus subtractive library via fluorescence in situ hybridization (FISH), including subtelomeric and centromeric regions. EaCEN2-166F/R and EaSUB1-127F/R primers were then designed as species-specific markers to accurately validate E. arundinaceus authenticity. CONCLUSIONS This is the first report that E. arundinaceus-specific repetitive sequences were obtained via an improved SSH method. These results suggested that this novel SSH system could facilitate screening of species-specific repetitive sequences for species identification and provide a basis for development of similar applications for other plant species.
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Affiliation(s)
- Fan Yu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Yongji Huang
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Ling Luo
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Xueting Li
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Jiayun Wu
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangdong Provincial Bioengineering Institute, Guangzhou, China
| | - Rukai Chen
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
| | - Muqing Zhang
- State Key Laboratory for protection and utilization of subtropical agro-bioresources, Guangxi University, Nanning, 530004 China
| | - Zuhu Deng
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian China
- State Key Laboratory for protection and utilization of subtropical agro-bioresources, Guangxi University, Nanning, 530004 China
- Key Lab of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002 China
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Hu M, Yu H, Li Y, Li A, Cai Q, Liu P, Tu Y, Wang Y, Hu R, Hao B, Peng L, Xia T. Distinct polymer extraction and cellulose DP reduction for complete cellulose hydrolysis under mild chemical pretreatments in sugarcane. Carbohydr Polym 2018; 202:434-443. [PMID: 30287020 DOI: 10.1016/j.carbpol.2018.08.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/27/2018] [Accepted: 08/10/2018] [Indexed: 10/28/2022]
Abstract
In this study, liquid hot water (LHW) and chemical (H2SO4, NaOH, CaO) pretreatments were performed in Saccharum species including sugarcane bagasse. In comparison, the LHW and CaO pretreatments significantly enhanced biomass enzymatic hydrolysis, leading to much high bioethanol yield obtained at 19% (% dry matter) with an almost complete hexoses-ethanol conversion in the desirable So5 bagasse sample. Despite the LHW and CaO are distinctive for extracting hemicellulose and lignin, both pretreatments largely reduced cellulose degree of polymerization for enhanced lignocellulose enzymatic saccharification. Further chemical analysis indicated that the pretreated So5 sample had much lower cellulose crystalline index, hemicellulosic Xyl/Ara and lignin S/H ratio than those of other biomass samples, which explained that the So5 had the highest bioethanol yield among Saccharum species. Therefore, a mechanism model was proposed to elucidate how mild pretreatments could enhance biomass enzymatic saccharification for a high bioethanol production in the desirable sugarcane bagasse.
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Affiliation(s)
- Meng Hu
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Hua Yu
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yu Li
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute), Guangzhou 510316, China.
| | - Ao Li
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Qiuming Cai
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Peng Liu
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yuanyuan Tu
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yanting Wang
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Ruofei Hu
- College of Food Science and Technology, Hubei University of Arts and Science, Xiangyang City, Hubei Province 441053, China.
| | - Bo Hao
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Liangcai Peng
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Tao Xia
- Biomass and Bioenergy Research Centre, Huazhong Agricultural University, Wuhan 430070, China; College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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11
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Snyman SJ, Komape DM, Khanyi H, van den Berg J, Cilliers D, Lloyd Evans D, Barnard S, Siebert SJ. Assessing the Likelihood of Gene Flow From Sugarcane ( Saccharum Hybrids) to Wild Relatives in South Africa. Front Bioeng Biotechnol 2018; 6:72. [PMID: 29930938 PMCID: PMC5999724 DOI: 10.3389/fbioe.2018.00072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 05/17/2018] [Indexed: 01/17/2023] Open
Abstract
Pre-commercialization studies on environmental biosafety of genetically modified (GM) crops are necessary to evaluate the potential for sexual hybridization with related plant species that occur in the release area. The aim of the study was a preliminary assessment of factors that may contribute to gene flow from sugarcane (Saccharum hybrids) to indigenous relatives in the sugarcane production regions of Mpumalanga and KwaZulu-Natal provinces, South Africa. In the first instance, an assessment of Saccharum wild relatives was conducted based on existing phylogenies and literature surveys. The prevalence, spatial overlap, proximity, distribution potential, and flowering times of wild relatives in sugarcane production regions based on the above, and on herbaria records and field surveys were conducted for Imperata, Sorghum, Cleistachne, and Miscanthidium species. Eleven species were selected for spatial analyses based on their presence within the sugarcane cultivation region: four species in the Saccharinae and seven in the Sorghinae. Secondly, fragments of the nuclear internal transcribed spacer (ITS) regions of the 5.8s ribosomal gene and two chloroplast genes, ribulose-bisphosphate carboxylase (rbcL), and maturase K (matK) were sequenced or assembled from short read data to confirm relatedness between Saccharum hybrids and its wild relatives. Phylogenetic analyses of the ITS cassette showed that the closest wild relative species to commercial sugarcane were Miscanthidium capense, Miscanthidium junceum, and Narenga porphyrocoma. Sorghum was found to be more distantly related to Saccharum than previously described. Based on the phylogeny described in our study, the only species to highlight in terms of evolutionary divergence times from Saccharum are those within the genus Miscanthidium, most especially M. capense, and M. junceum which are only 3 million years divergent from Saccharum. Field assessment of pollen viability of 13 commercial sugarcane cultivars using two stains, iodine potassium iodide (IKI) and triphenyl tetrazolium chloride, showed decreasing pollen viability (from 85 to 0%) from the north to the south eastern regions of the study area. Future work will include other aspects influencing gene flow such as cytological compatibility and introgression between sugarcane and Miscanthidium species.
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Affiliation(s)
- Sandy J Snyman
- Crop Biology Resource Centre, South African Sugarcane Research Institute, Mount Edgecombe, South Africa.,Department of Biology, School of Life Sciences, University of KwaZulu-Natal, Westville, South Africa
| | - Dennis M Komape
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Hlobisile Khanyi
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Johnnie van den Berg
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Dirk Cilliers
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Dyfed Lloyd Evans
- Crop Biology Resource Centre, South African Sugarcane Research Institute, Mount Edgecombe, South Africa.,Department of Biology, School of Life Sciences, University of KwaZulu-Natal, Westville, South Africa.,BeauSci Ltd., Waterbeach, Cambridge, United Kingdom
| | - Sandra Barnard
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Stefan J Siebert
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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Lalitha R, Premachandran MN. Meiotic Abnormalities in Intergeneric Hybrids between Saccharum spontaneumand Erianthus arundinaceus (Gramineae). CYTOLOGIA 2007. [DOI: 10.1508/cytologia.72.337] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Nakayama S. Species-specific accumulation of interspersed sequences in genus Saccharum. Genes Genet Syst 2005; 79:361-5. [PMID: 15729004 DOI: 10.1266/ggs.79.361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The genus Saccharum consists of two wild and four cultivated species. Novel interspersed sequences were isolated from cultivated sugar cane S. officinarum. These sequences were accumulated in all four cultivated species and their wild ancestral species S. robustum, but were not detected in the other wild species S. spontaneum and the relative Erianthus arundinaceus. The species-specific accumulation of interspersed sequences would correlate to the domestication of sugar canes.
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Affiliation(s)
- Shigeki Nakayama
- National Institute of Agrobiological Sciences (NIAS), Tsukuba, Ibaraki 305-8602, Japan.
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