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Xia Z, Dai X, Fan W, Liu C, Zhang M, Bian P, Zhou Y, Li L, Zhu B, Liu S, Li Z, Wang X, Yu M, Xiang Z, Jiang Y, Zhao A. Chromosome-level Genomes Reveal the Genetic Basis of Descending Dysploidy and Sex Determination in Morus Plants. GENOMICS, PROTEOMICS & BIOINFORMATICS 2022; 20:1119-1137. [PMID: 36055564 DOI: 10.1016/j.gpb.2022.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 07/02/2022] [Accepted: 08/23/2022] [Indexed: 12/13/2022]
Abstract
Multiple plant lineages have independently evolved sex chromosomes and variable karyotypes to maintain their sessile lifestyles through constant biological innovation. Morus notabilis, a dioecious mulberry species, has the fewest chromosomes among Morus spp., but the genetic basis of sex determination and karyotype evolution in this species has not been identified. In this study, three high-quality genome assemblies were generated for Morus spp. [including dioecious M. notabilis (male and female) and Morus yunnanensis (female)] with genome sizes of 301-329 Mb and were grouped into six pseudochromosomes. Using a combination of genomic approaches, we found that the putative ancestral karyotype of Morus species was close to 14 protochromosomes, and that several chromosome fusion events resulted in descending dysploidy (2n = 2x = 12). We also characterized a ∼ 6.2-Mb sex-determining region on chromosome 3. Four potential male-specific genes, a partially duplicatedDNA helicase gene (named MSDH) and three Ty3_Gypsy long terminal repeat retrotransposons (named MSTG1/2/3), were identified in the Y-linked area and considered to be strong candidate genes for sex determination or differentiation. Population genomic analysis showed that Guangdong accessions in China were genetically similar to Japanese accessions of mulberry. In addition, genomic areas containing selective sweeps that distinguish domesticated mulberry from wild populations in terms of flowering and disease resistance were identified. Our findings provide an important genetic resource for sex identification research and molecular breeding in mulberry.
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Affiliation(s)
- Zhongqiang Xia
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Xuelei Dai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Wei Fan
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Changying Liu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu 610106, China
| | - Meirong Zhang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Peipei Bian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
| | - Yuping Zhou
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Liang Li
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Baozhong Zhu
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Shuman Liu
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Zhengang Li
- The Sericultural and Apicultural Research Institute, Yunnan Academy of Agricultural Sciences, Mengzi 661100, China
| | - Xiling Wang
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400716, China
| | - Maode Yu
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400716, China
| | - Zhonghuai Xiang
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Yu Jiang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China.
| | - Aichun Zhao
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China.
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Chen Y, Wang Y, Xu L, Su X, Zhai L, Zhao Y, Zhang C, Liu L. Effects of genotype and culture conditions on microspore embryogenesis in radish ( Raphanus sativus L.). MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2022; 42:43. [PMID: 37313515 PMCID: PMC10248703 DOI: 10.1007/s11032-022-01312-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Radish (Raphanus sativus L.), an important annual or biennial root vegetable crop, is widely cultivated in the world for its high nutritive value. Isolated microspore culture (IMC) is one of the most effective methods for rapid development of homozygous lines. Due to imperfection of the IMC technology system, it is particularly important to establish an efficient IMC system in radish. In this study, the effects of different factors on radish microspore embryogenesis were investigated with 23 genotypes. Buds with the largest population of late-uninucleate-stage microspores were most suitable for embryogenesis, with a ratio of petal length to anther length (P/A) in buds of about 3/4 ~ 1. Cold pretreatment was found to be genotype specific, and the highest microspore-derived embryoid (MDE) yield occurred for treatment of the heat shock of 48 h. In addition, the supplement of 0.75 g/L activated charcoal (AC) could increase the yield of embryoids. It was found that genotypes, bud size, as well as temperature treatments had significant effects on microspore embryogenesis. Furthermore, somatic embryogenesis-related kinase (SERK) genes were profiled by reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis, which indicated that they are involved in the process of MDE formation and plantlet regeneration. The ploidy of microspore-derived plants was identified by chromosome counting and flow cytometry, and the microspore-derived plants were further proved as homozygous plants through expressed sequence tags-simple sequence repeats (EST-SSR) and genetic-SSR markers. The results would facilitate generating the large-scale double haploid (DH) from various genotypes, and promoting further highly efficient genetic improvement in radish. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-022-01312-w.
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Affiliation(s)
- Yaru Chen
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Yan Wang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Liang Xu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Xiaojun Su
- Institution of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 People’s Republic of China
| | - Lulu Zhai
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Yanling Zhao
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Cuiping Zhang
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
| | - Liwang Liu
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 People’s Republic of China
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225100 People’s Republic of China
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He ZX, An Q, Wei B, Zhou WJ, Wei BF, Gong YP, Zhang X, Gao G, Dong GJ, Huo JL, Zhang XH, Yang FF, Liu HM, Ma LY, Zhao W. Discovery of Potent and Selective 2-(Benzylthio)pyrimidine-based DCN1-UBC12 Inhibitors for Anticardiac Fibrotic Effects. J Med Chem 2022; 65:163-190. [PMID: 34939411 DOI: 10.1021/acs.jmedchem.1c01207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
DCN1, a co-E3 ligase, interacts with UBC12 and activates cullin-RING ligases (CRLs) by catalyzing cullin neddylation. Although DCN1 has been recognized as an important therapeutic target for human diseases, its role in the cardiovascular area remains unknown. Here, we first found that DCN1 was upregulated in isolated cardiac fibroblasts (CFs) treated by angiotensin (Ang) II and in mouse hearts after pressure overload. Then, structure-based optimizations for DCN1-UBC12 inhibitors were performed based on our previous work, yielding compound DN-2. DN-2 specifically targeted DCN1 at molecular and cellular levels as shown by molecular modeling studies, HTRF, cellular thermal shift and co-immunoprecipitation assays. Importantly, DN-2 effectively reversed Ang II-induced cardiac fibroblast activation, which was associated with the inhibition of cullin 3 neddylation. Our findings indicate a potentially unrecognized role of DCN1 inhibition for anticardiac fibrotic effects. DN-2 may be used as a lead compound for further development.
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Affiliation(s)
- Zhang-Xu He
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Qi An
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Bo Wei
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Wen-Juan Zhou
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Bing-Fei Wei
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Yun-Peng Gong
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xin Zhang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Ge Gao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Guan-Jun Dong
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Jin-Ling Huo
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Hui Zhang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Fei-Fei Yang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Hong-Min Liu
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Li-Ying Ma
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
- China Meheco Topfond Pharmaceutical Co., Zhumadian 463000, China
| | - Wen Zhao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment; Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
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Gingerich DJ, Hellmann H, Christians MJ, Stone SL. Editorial: Structure, Function, and Evolution of E3 Ligases and Targets. FRONTIERS IN PLANT SCIENCE 2021; 12:767281. [PMID: 34707634 PMCID: PMC8542714 DOI: 10.3389/fpls.2021.767281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 09/13/2021] [Indexed: 05/09/2023]
Affiliation(s)
- Derek J. Gingerich
- Department of Biology, University of Wisconsin-Eau Claire, Eau Claire, WI, United States
- *Correspondence: Derek J. Gingerich
| | - Hanjo Hellmann
- School of Biological Sciences, Washington State University, Pullman, WA, United States
| | - Matthew J. Christians
- Department of Cell and Molecular Biology, Grand Valley State University, Allendale, MI, United States
| | - Sophia L. Stone
- Department of Biology, Dalhousie University, Halifax, NS, Canada
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Wei B, Bosland PW, Zhang Z, Wang Y, Zhang G, Wang L, Yu J. A predicted NEDD8 conjugating enzyme gene identified as a Capsicum candidate Rf gene using bulk segregant RNA sequencing. HORTICULTURE RESEARCH 2020; 7:210. [PMID: 35051251 PMCID: PMC7721708 DOI: 10.1038/s41438-020-00425-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 09/19/2020] [Accepted: 09/20/2020] [Indexed: 05/09/2023]
Abstract
Cytoplasmic male sterility (CMS) is an important tool for producing F1 hybrids, which can exhibit heterosis. The companion system, restorer-of-fertility (Rf), is poorly understood at the molecular level and would be valuable in producing restorer lines for hybrid seed production. The identity of the Rf gene in Capsicum (pepper) is currently unclear. In this study, using bulked segregant RNA sequencing (BSR-seq), a strong candidate Rf gene, Capana06g002866, which is annotated as a NEDD8 conjugating enzyme E2, was identified. Capana06g002866 has an ORF of 555 bp in length encoding 184 amino acids; it can be cloned from F1 plants from the hybridization of the CMS line 8A and restorer line R1 but is not found in CMS line 8A. With qRT-PCR validation, Capana06g002866 was found to be upregulated in restorer accessions compared to sterile accessions. The relative expression in flower buds increased with the developmental stage in F1 plants, while the expression was very low in all flower bud stages of the CMS lines. These results provide new insights into the Rf gene in pepper and will be useful for other crops utilizing the CMS system.
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Affiliation(s)
- Bingqiang Wei
- College of Horticulture, Gansu Agricultural University, 1 Yingmeng Village, Anning District, 730070 Lanzhou, China
| | - Paul W. Bosland
- Plant and Environmental Sciences Department, New Mexico State University, P.O. Box 30003, Las Cruces, 88001 NM USA
| | - Zhenghai Zhang
- Key Laboratory of Vegetable Genetics and Physiology of Ministry of the Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, 100081 Beijing, China
| | - Yongfu Wang
- College of Horticulture, Gansu Agricultural University, 1 Yingmeng Village, Anning District, 730070 Lanzhou, China
| | - Gaoyuan Zhang
- College of Horticulture, Gansu Agricultural University, 1 Yingmeng Village, Anning District, 730070 Lanzhou, China
| | - Lanlan Wang
- Vegetable Institute, Gansu Academy of Agricultural Sciences, 1 Nongkeyuan New Village, 730070 Lanzhou, China
| | - Jihua Yu
- College of Horticulture, Gansu Agricultural University, 1 Yingmeng Village, Anning District, 730070 Lanzhou, China
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Lin L, Chen L, Tran PT. Fission yeast neddylation ligase Dcn1 facilitates cohesin cleavage and chromosome segregation at anaphase. Biol Open 2017; 6:844-849. [PMID: 28455357 PMCID: PMC5483010 DOI: 10.1242/bio.021238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Post-translational protein modification such as phosphorylation and ubiquitination are critical during mitosis to ensure proper timing and progression of chromosome segregation. It has been recently recognized that another type of protein modification – neddylation – may also regulate mitosis and chromosome segregation. The conserved protein DCN1 (defective cullin neddylation 1) has been shown, when knocked-down by RNAi, to result in multinucleated cells and/or blockage of cell proliferation. However, how DCN1 functions in mitosis and chromosome segregation is not known. We report here the fission yeast dcn1+ and its role in mitosis and chromosome segregation. Dcn1-GFP localizes to the nucleus throughout the cell cycle. dcn1-deletion (dcn1Δ) leads to chromosome and kinetochore lagging at anaphase, resulting from delayed and attenuated cohesin cleavage and sister chromatids separation. These results put Dcn1 upstream of the anaphase promoting complex/cyclosome (APC/C) pathway. We propose a mechanism for Dcn1 function at mitosis. Summary: The fission yeast neddylation ligase Dcn1 plays a role in chromosome segregation. dcn1-deletion results in activation of the Mad2-dependent spindle assembly checkpoint, and lagging chromosomes at anaphase.
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Affiliation(s)
- Lan Lin
- School of Medicine, Southeast University, Nanjing, Jiangsu 210009, People's Republic of China.,Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Li Chen
- Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Phong T Tran
- Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA .,Institut Curie, PSL Research Universities, CNRS, UMR144, Paris F-75005, France
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Fíla J, Radau S, Matros A, Hartmann A, Scholz U, Feciková J, Mock HP, Čapková V, Zahedi RP, Honys D. Phosphoproteomics Profiling of Tobacco Mature Pollen and Pollen Activated in vitro. Mol Cell Proteomics 2016; 15:1338-50. [PMID: 26792808 PMCID: PMC4824859 DOI: 10.1074/mcp.m115.051672] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 11/02/2015] [Indexed: 11/06/2022] Open
Abstract
Tobacco mature pollen has extremely desiccated cytoplasm, and is metabolically quiescent. Upon re-hydration it becomes metabolically active and that results in later emergence of rapidly growing pollen tube. These changes in cytoplasm hydration and metabolic activity are accompanied by protein phosphorylation. In this study, we subjected mature pollen, 5-min-activated pollen, and 30-min-activated pollen to TCA/acetone protein extraction, trypsin digestion and phosphopeptide enrichment by titanium dioxide. The enriched fraction was subjected to nLC-MS/MS. We identified 471 phosphopeptides that carried 432 phosphorylation sites, position of which was exactly matched by mass spectrometry. These 471 phosphopeptides were assigned to 301 phosphoproteins, because some proteins carried more phosphorylation sites. Of the 13 functional groups, the majority of proteins were put into these categories: transcription, protein synthesis, protein destination and storage, and signal transduction. Many proteins were of unknown function, reflecting the fact that male gametophyte contains many specific proteins that have not been fully functionally annotated. The quantitative data highlighted the dynamics of protein phosphorylation during pollen activation; the identified phosphopeptides were divided into seven groups based on the regulatory trends. The major group comprised mature pollen-specific phosphopeptides that were dephosphorylated during pollen activation. Several phosphopeptides representing the same phosphoprotein had different regulation, which pinpointed the complexity of protein phosphorylation and its clear functional context. Collectively, we showed the first phosphoproteomics data on activated pollen where the position of phosphorylation sites was clearly demonstrated and regulatory kinetics was resolved.
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Affiliation(s)
- Jan Fíla
- From the ‡Laboratory of Pollen Biology, Institute of Experimental Botany ASCR, v.v.i., Rozvojova 263, 165 00 Praha 6, Czech Republic
| | - Sonja Radau
- §Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Otto-Hahn-Straβe 6b, 44227 Dortmund, Germany
| | - Andrea Matros
- ¶Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetic and Crop Plant Research, Corrensstraβe 3, 06466 Gatersleben, Germany
| | - Anja Hartmann
- ¶Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetic and Crop Plant Research, Corrensstraβe 3, 06466 Gatersleben, Germany
| | - Uwe Scholz
- ‖Department of Breeding Research, Leibniz Institute of Plant Genetic and Crop Plant Research, Corrensstraβe 3, 06466 Gatersleben, Germany
| | - Jana Feciková
- From the ‡Laboratory of Pollen Biology, Institute of Experimental Botany ASCR, v.v.i., Rozvojova 263, 165 00 Praha 6, Czech Republic
| | - Hans-Peter Mock
- ¶Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetic and Crop Plant Research, Corrensstraβe 3, 06466 Gatersleben, Germany
| | - Věra Čapková
- From the ‡Laboratory of Pollen Biology, Institute of Experimental Botany ASCR, v.v.i., Rozvojova 263, 165 00 Praha 6, Czech Republic
| | - René Peiman Zahedi
- §Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., Otto-Hahn-Straβe 6b, 44227 Dortmund, Germany
| | - David Honys
- From the ‡Laboratory of Pollen Biology, Institute of Experimental Botany ASCR, v.v.i., Rozvojova 263, 165 00 Praha 6, Czech Republic;
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Ahmadi B, Masoomi-Aladizgeh F, Shariatpanahi ME, Azadi P, Keshavarz-Alizadeh M. Molecular characterization and expression analysis of SERK1 and SERK2 in Brassica napus L.: implication for microspore embryogenesis and plant regeneration. PLANT CELL REPORTS 2016; 35:185-93. [PMID: 26449417 DOI: 10.1007/s00299-015-1878-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/12/2015] [Accepted: 09/29/2015] [Indexed: 05/19/2023]
Abstract
The BnSERK1 and BnSERK2 are involved in the process of microspore embryogenesis induction, development, and plantlet regeneration. Little is known about regulatory role of somatic embryogenesis-related kinase (SERK) genes family in the induction of microspore embryogenesis, development and plant regeneration. In this study, the expression of two SERK genes (SERK1 and SERK2) was assessed during the microspore embryogenesis and plantlet regeneration in Brassica napus L. The BnSERK1 was severely up-regulated 1-5 days following microspore culture and its expression drastically decreased in the globular-heart and also torpedo staged microspore-derived embryos (MDEs). In addition, high levels of BnSERK1 transcript were detected in the MDE maturation phase and in the roots and shoots of the regenerated plantlets which indicates a broader role(s) of BnSERK1 in the organ formation, rather than being specific to the embryogenesis. Results of partial sequencing indicated that the BnSERK1 shares a conserved serine-threonine kinase catalytic domain and exhibited 95 % similarity with AtSERK1, CsSERK1, BrSERK1, NaSERK1, and NbSERK1. A steady increase in the expression of BnSERK2 was observed during the MDE initiation and development so that, the highest expression was noted in the MDE maturation phase i.e., late cotyledonary MDEs. Our results also indicated low amounts of BnSERK2 transcript at the onset of rhyzogenesis but significantly higher expression in the developing roots. In contrast, the BnSERK2 strongly up-regulated during the both initially and developed shoots. The BnSERK2 shares highly conserved LRR-RLK domain when compared with different species tested so that, high homology (100 %) was noticed with BrSERK2. Based on our findings, MDE formation and plantlet regeneration seem to be correlated with both BnSERK1 and BnSERK2 expression.
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Affiliation(s)
- Behzad Ahmadi
- Department of Tissue Culture and Gene Transformation, Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, 3135933151, Karaj, Iran
| | - Farhad Masoomi-Aladizgeh
- Department of Tissue Culture and Gene Transformation, Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, 3135933151, Karaj, Iran
| | - Mehran E Shariatpanahi
- Department of Tissue Culture and Gene Transformation, Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, 3135933151, Karaj, Iran.
| | - Pejman Azadi
- Department of Tissue Culture and Gene Transformation, Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, 3135933151, Karaj, Iran
| | - Mehdi Keshavarz-Alizadeh
- Department of Tissue Culture and Gene Transformation, Agricultural Biotechnology Research Institute of Iran (ABRII), AREEO, 3135933151, Karaj, Iran
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Choi CM, Gray WM, Mooney S, Hellmann H. Composition, roles, and regulation of cullin-based ubiquitin e3 ligases. THE ARABIDOPSIS BOOK 2014; 12:e0175. [PMID: 25505853 PMCID: PMC4262284 DOI: 10.1199/tab.0175] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Due to their sessile nature, plants depend on flexible regulatory systems that allow them to adequately regulate developmental and physiological processes in context with environmental cues. The ubiquitin proteasome pathway, which targets a great number of proteins for degradation, is cellular tool that provides the necessary flexibility to accomplish this task. Ubiquitin E3 ligases provide the needed specificity to the pathway by selectively binding to particular substrates and facilitating their ubiquitylation. The largest group of E3 ligases known in plants is represented by CULLIN-REALLY INTERESTING NEW GENE (RING) E3 ligases (CRLs). In recent years, a great amount of knowledge has been generated to reveal the critical roles of these enzymes across all aspects of plant life. This review provides an overview of the different classes of CRLs in plants, their specific complex compositions, the variety of biological processes they control, and the regulatory steps that can affect their activities.
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Affiliation(s)
| | | | | | - Hanjo Hellmann
- Washington State University, Pullman, Washington
- Address correspondence to
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