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Ravi S, Campagna G, Della Lucia MC, Broccanello C, Bertoldo G, Chiodi C, Maretto L, Moro M, Eslami AS, Srinivasan S, Squartini A, Concheri G, Stevanato P. SNP Alleles Associated With Low Bolting Tendency in Sugar Beet. FRONTIERS IN PLANT SCIENCE 2021; 12:693285. [PMID: 34322145 PMCID: PMC8311237 DOI: 10.3389/fpls.2021.693285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
The identification of efficient molecular markers related to low bolting tendency is a priority in sugar beet (Beta vulgaris L.) breeding. This study aimed to identify SNP markers associated with low bolting tendency by establishing a genome-wide association study. An elaborate 3-year field trial comprising 13 sugar beet lines identified L14 as the one exhibiting the lowest bolting tendency along with an increased survival rate after autumnal sowing. For SNP discovery following phenotyping, contrasting phenotypes of 24 non-bolting and 15 bolting plants of the L14 line were sequenced by restriction site-associated DNA sequencing (RAD-seq). An association model was established with a set of 10,924 RAD-based single nucleotide polymorphism (SNP) markers. The allelic status of the most significantly associated SNPs ranked based on their differential allelic status between contrasting phenotypes (p < 0.01) was confirmed on three different validation datasets comprising diverse sugar beet lines and varieties adopting a range of SNP detection technologies. This study has led to the identification of SNP_36780842 and SNP_48607347 linked to low bolting tendency and can be used for marker-assisted breeding and selection in sugar beet.
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Affiliation(s)
- Samathmika Ravi
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Giovanni Campagna
- Cooperativa Produttori Agricoli Società Cooperativa Agricola (COPROB), Minerbio, Italy
| | - Maria Cristina Della Lucia
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Chiara Broccanello
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Giovanni Bertoldo
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Claudia Chiodi
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Laura Maretto
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Matteo Moro
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Azam Sadat Eslami
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | | | - Andrea Squartini
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Giuseppe Concheri
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
| | - Piergiorgio Stevanato
- Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
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Xu S, Chong K. Remembering winter through vernalisation. NATURE PLANTS 2018; 4:997-1009. [PMID: 30478363 DOI: 10.1038/s41477-018-0301-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 10/12/2018] [Indexed: 05/10/2023]
Abstract
Vernalisation is the programmed physiological process in which prolonged cold-exposure provides competency to flower in plants; widely found in winter and biennial species, such as Arabidopsis, fruit trees, vegetables and wheat. This phenomenon is regulated by diverse genetic networks, and memory of vernalisation in a life cycle mainly depends on epigenetic mechanisms. However, less is known about how to count winter-dosage for flowering in plants. Here, we compare the vernalisation genetic framework between the dicots Arabidopsis, temperate grasses, wheat, barley and Brachypodium. We discuss vernalisation mechanisms involving crosstalk between phosphorylation and O-GlcNAcylation modification of key proteins, and epigenetic modifications of the key gene VRN1 in wheat. We also highlight the potential evolutionary origins of vernalisation in various species. Current progress toward understanding the regulation of vernalisation requirements provides insight that will inform the design of molecular breeding strategies for winter crops.
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Affiliation(s)
- Shujuan Xu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kang Chong
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, China.
- University of Chinese Academy of Sciences, Beijing, China.
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Dally N, Eckel M, Batschauer A, Höft N, Jung C. Two CONSTANS-LIKE genes jointly control flowering time in beet. Sci Rep 2018; 8:16120. [PMID: 30382124 PMCID: PMC6208394 DOI: 10.1038/s41598-018-34328-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 09/21/2018] [Indexed: 11/19/2022] Open
Abstract
Breeding vegetative crops (e.g. beets, cabbage, forage grasses) is challenged by two conflicting aims. For field production, flowering must be avoided while flowering and seed set is necessary for breeding and seed production. The biennial species sugar beet makes shoot elongation (‘bolting’) followed by flowering after a long period of cold temperatures. Field production in northern geographical regions starts in spring. A thickened storage root is formed only during vegetative growth. It is expected that winter beets, which are sown before winter would have a much higher yield potential. However, field production was not possible so far due to bolting after winter. We propose a strategy to breed winter beets exploiting haplotype variation at two major bolting time loci, B and B2. Both genes encode transcription factors controlling the expression of two orthologs of the Arabidopsis gene FLOWERING LOCUS T (FT). We detected an epistatic interaction between both genes because F2 plants homozygous for two B/B2 mutant alleles did not bolt even after vernalization. Fluorescence complementation studies revealed that both proteins form a heterodimer in vivo. In non-bolting plants, the bolting activator BvFT2 was completely downregulated whereas the repressor BvFT1 was upregulated which suggests that both genes acquire a CONSTANS (CO) like function in beet. Like CO, B and B2 proteins house CCT and BBX domains which, in contrast to CO are split between the two beet genes. We propose an alternative regulation of FT orthologs in beet that can be exploited to breed winter beets.
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Affiliation(s)
- Nadine Dally
- UKSH Campus Kiel, Hematology Laboratory Kiel, Langer Segen 8-10, D-24105, Kiel, Germany
| | - Maike Eckel
- Department of Plant Physiology and Photobiology, Faculty of Biology, Philipps-University of Marburg, Karl-von-Frisch-Str. 8, D-35032, Marburg, Germany
| | - Alfred Batschauer
- Department of Plant Physiology and Photobiology, Faculty of Biology, Philipps-University of Marburg, Karl-von-Frisch-Str. 8, D-35032, Marburg, Germany
| | - Nadine Höft
- Plant Breeding Institute, Christian-Albrechts-University of Kiel, Am Botanischen Garten 1-9, D-24118, Kiel, Germany
| | - Christian Jung
- Plant Breeding Institute, Christian-Albrechts-University of Kiel, Am Botanischen Garten 1-9, D-24118, Kiel, Germany.
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Höft N, Dally N, Hasler M, Jung C. Haplotype Variation of Flowering Time Genes of Sugar Beet and Its Wild Relatives and the Impact on Life Cycle Regimes. FRONTIERS IN PLANT SCIENCE 2018; 8:2211. [PMID: 29354149 PMCID: PMC5758561 DOI: 10.3389/fpls.2017.02211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 12/15/2017] [Indexed: 05/24/2023]
Abstract
The species Beta vulgaris encompasses wild and cultivated members with a broad range of phenological development. The annual life cycle is commonly found in sea beets (ssp. maritima) from Mediterranean environments which germinate, bolt, and flower within one season under long day conditions. Biennials such as the cultivated sugar beet (B. vulgaris ssp. vulgaris) as well as sea beets from northern latitudes require prolonged exposure to cold temperature over winter to acquire floral competence. Sugar beet is mainly cultivated for sugar production in Europe and is likely to have originated from sea beet. Flowering time strongly affects seed yield and yield potential and is thus a trait of high agronomic relevance. Besides environmental cues, there are complex genetic networks known to impact life cycle switch in flowering plants. In sugar beet, BTC1, BvBBX19, BvFT1, and BvFT2 are major flowering time regulators. In this study, we phenotyped plants from a diversity Beta panel encompassing cultivated and wild species from different geographical origin. Plants were grown under different day length regimes with and without vernalization. Haplotype analysis of BTC1, BvBBX19, BvFT1, and BvFT2 was performed to identify natural diversity of these genes and their impact on flowering. We found that accessions from northern latitudes flowered significantly later than those from southern latitudes. Some plants did not flower at all, indicating a strong impact of latitude of origin on life cycle. Haplotype analysis revealed a high conservation of the CCT-, REC-, BBX-, and PEBP-domains with regard to SNP occurrence. We identified sequence variation which may impact life cycle adaptation in beet. Our data endorse the importance of BTC1 in the domestication process of cultivated beets and contribute to the understanding of distribution and adaption of Beta species to different life cycle regimes in response to different environments. Moreover, our data provide a resource for haplotypes identified for the major floral regulators in beet.
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Affiliation(s)
- Nadine Höft
- Plant Breeding Institute, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Nadine Dally
- Plant Breeding Institute, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Mario Hasler
- Lehrfach Variationsstatistik, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Christian Jung
- Plant Breeding Institute, Christian-Albrechts-University of Kiel, Kiel, Germany
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Tränkner C, Pfeiffer N, Kirchhoff M, Kopisch-Obuch FJ, van Dijk H, Schilhabel M, Hasler M, Emrani N. Deciphering the complex nature of bolting time regulation in Beta vulgaris. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2017; 130:1649-1667. [PMID: 28478574 DOI: 10.1007/s00122-017-2916-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
Only few genetic loci are sufficient to increase the variation of bolting time in Beta vulgaris dramatically, regarding vernalization requirement, seasonal bolting time and reproduction type. Beta species show a wide variation of bolting time regarding the year of first reproduction, seasonal bolting time and the number of reproduction cycles. To elucidate the genetics of bolting time control, we used three F3 mapping populations that were produced by crossing a semelparous, annual sugar beet with iteroparous, vernalization-requiring wild beet genotypes. The semelparous plants died after reproduction, whereas iteroparous plants reproduced at least twice. All populations segregated for vernalization requirement, seasonal bolting time and the number of reproduction cycles. We found that vernalization requirement co-segregated with the bolting locus B on chromosome 2 and was inherited independently from semel- or iteroparous reproduction. Furthermore, we found that seasonal bolting time is a highly heritable trait (h 2 > 0.84), which is primarily controlled by two major QTL located on chromosome 4 and 9. Late bolting alleles of both loci act in a partially recessive manner and were identified in both iteroparous pollinators. We observed an additive interaction of both loci for bolting delay. The QTL region on chromosome 4 encompasses the floral promoter gene BvFT2, whereas the QTL on chromosome 9 co-localizes with the BR 1 locus, which controls post-winter bolting resistance. Our findings are applicable for marker-assisted sugar beet breeding regarding early bolting to accelerate generation cycles and late bolting to develop bolting-resistant spring and winter beets. Unexpectedly, one population segregated also for dwarf growth that was found to be controlled by a single locus on chromosome 9.
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Affiliation(s)
- Conny Tränkner
- Plant Breeding Institute, University of Kiel, Am Botanischen Garten 1-9, 24118, Kiel, Germany.
- Leibniz Institute of Vegetable and Ornamental Crops, Kühnhäuser Straße 101, 99090, Erfurt, Germany.
| | - Nina Pfeiffer
- Plant Breeding Institute, University of Kiel, Am Botanischen Garten 1-9, 24118, Kiel, Germany
- KWS LOCHOW GMBH, Zuchtstation Wetze, 37154, Northeim, Germany
| | - Martin Kirchhoff
- Plant Breeding Institute, University of Kiel, Am Botanischen Garten 1-9, 24118, Kiel, Germany
- Nordsaat Saatzucht GmbH, Böhnshauser Straße 1, 38895, Langenstein, Germany
| | - Friedrich J Kopisch-Obuch
- Plant Breeding Institute, University of Kiel, Am Botanischen Garten 1-9, 24118, Kiel, Germany
- KWS SAAT SE, Grimsehlstraße 31, 37555, Einbeck, Germany
| | - Henk van Dijk
- Universite Lille, CNRS, UMR 8198 - Evo-Eco-Paleo, 59000, Lille, France
| | - Markus Schilhabel
- Institute of Clinical Molecular Biology, University of Kiel, Schittenhelmstr. 12, 24105, Kiel, Germany
| | - Mario Hasler
- Lehrfach Variationsstatistik, University of Kiel, Hermann-Rodewald-Straße 9, 24098, Kiel, Germany
| | - Nazgol Emrani
- Plant Breeding Institute, University of Kiel, Am Botanischen Garten 1-9, 24118, Kiel, Germany
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Tränkner C, Lemnian IM, Emrani N, Pfeiffer N, Tiwari SP, Kopisch-Obuch FJ, Vogt SH, Müller AE, Schilhabel M, Jung C, Grosse I. A Detailed Analysis of the BR1 Locus Suggests a New Mechanism for Bolting after Winter in Sugar Beet ( Beta vulgaris L.). FRONTIERS IN PLANT SCIENCE 2016; 7:1662. [PMID: 27895650 PMCID: PMC5107561 DOI: 10.3389/fpls.2016.01662] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/21/2016] [Indexed: 05/29/2023]
Abstract
Sugar beet (Beta vulgaris ssp. vulgaris) is a biennial, sucrose-storing plant, which is mainly cultivated as a spring crop and harvested in the vegetative stage before winter. For increasing beet yield, over-winter cultivation would be advantageous. However, bolting is induced after winter and drastically reduces yield. Thus, post-winter bolting control is essential for winter beet cultivation. To identify genetic factors controlling bolting after winter, a F2 population was previously developed by crossing the sugar beet accessions BETA 1773 with reduced bolting tendency and 93161P with complete bolting after winter. For a mapping-by-sequencing analysis, pools of 26 bolting-resistant and 297 bolting F2 plants were used. Thereby, a single continuous homozygous region of 103 kb was co-localized to the previously published BR1 QTL for post-winter bolting resistance (Pfeiffer et al., 2014). The BR1 locus was narrowed down to 11 candidate genes from which a homolog of the Arabidopsis CLEAVAGE AND POLYADENYLATION SPECIFICITY FACTOR 73-I (CPSF73-I) was identified as the most promising candidate. A 2 bp deletion within the BETA 1773 allele of BvCPSF73-Ia results in a truncated protein. However, the null allele of BvCPSF73-Ia might partially be compensated by a second BvCPSF73-Ib gene. This gene is located 954 bp upstream of BvCPSF73-Ia and could be responsible for the incomplete penetrance of the post-winter bolting resistance allele of BETA 1773. This result is an important milestone for breeding winter beets with complete bolting resistance after winter.
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Affiliation(s)
- Conny Tränkner
- Plant Breeding Institute, University of KielKiel, Germany
| | - Ioana M. Lemnian
- Institute of Computer Science, Martin Luther University Halle-WittenbergHalle, Germany
| | - Nazgol Emrani
- Plant Breeding Institute, University of KielKiel, Germany
| | - Nina Pfeiffer
- Plant Breeding Institute, University of KielKiel, Germany
| | | | | | | | | | - Markus Schilhabel
- Institute of Clinical Molecular Biology, University of KielKiel, Germany
| | - Christian Jung
- Plant Breeding Institute, University of KielKiel, Germany
| | - Ivo Grosse
- Institute of Computer Science, Martin Luther University Halle-WittenbergHalle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Leipzig-JenaLeipzig, Germany
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7
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Hébrard C, Peterson DG, Willems G, Delaunay A, Jesson B, Lefèbvre M, Barnes S, Maury S. Epigenomics and bolting tolerance in sugar beet genotypes. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:207-25. [PMID: 26463996 PMCID: PMC4682430 DOI: 10.1093/jxb/erv449] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
In sugar beet (Beta vulgaris altissima), bolting tolerance is an essential agronomic trait reflecting the bolting response of genotypes after vernalization. Genes involved in induction of sugar beet bolting have now been identified, and evidence suggests that epigenetic factors are involved in their control. Indeed, the time course and amplitude of DNA methylation variations in the shoot apical meristem have been shown to be critical in inducing sugar beet bolting, and a few functional targets of DNA methylation during vernalization have been identified. However, molecular mechanisms controlling bolting tolerance levels among genotypes are still poorly understood. Here, gene expression and DNA methylation profiles were compared in shoot apical meristems of three bolting-resistant and three bolting-sensitive genotypes after vernalization. Using Cot fractionation followed by 454 sequencing of the isolated low-copy DNA, 6231 contigs were obtained that were used along with public sugar beet DNA sequences to design custom Agilent microarrays for expression (56k) and methylation (244k) analyses. A total of 169 differentially expressed genes and 111 differentially methylated regions were identified between resistant and sensitive vernalized genotypes. Fourteen sequences were both differentially expressed and differentially methylated, with a negative correlation between their methylation and expression levels. Genes involved in cold perception, phytohormone signalling, and flowering induction were over-represented and collectively represent an integrative gene network from environmental perception to bolting induction. Altogether, the data suggest that the genotype-dependent control of DNA methylation and expression of an integrative gene network participate in bolting tolerance in sugar beet, opening up perspectives for crop improvement.
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Affiliation(s)
- Claire Hébrard
- Université d'Orléans, Faculté des Sciences, Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), UPRES EA 1207, 45067 Orléans, France INRA, USC1328 Arbres et Réponses aux Contraintes Hydriques et Environnementales (ARCHE), 45067 Orléans, France SESVanderHave N.V./S.A., Soldatenplein Z2 nr15, Industriepark, B-3300 Tienen, Belgium
| | - Daniel G Peterson
- Institute for Genomics, Biocomputing & Biotechnology, Mississippi State University, 2 Research Blvd., Box 9627, Mississippi State, MS 39762, USA
| | - Glenda Willems
- SESVanderHave N.V./S.A., Soldatenplein Z2 nr15, Industriepark, B-3300 Tienen, Belgium
| | - Alain Delaunay
- Université d'Orléans, Faculté des Sciences, Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), UPRES EA 1207, 45067 Orléans, France INRA, USC1328 Arbres et Réponses aux Contraintes Hydriques et Environnementales (ARCHE), 45067 Orléans, France
| | - Béline Jesson
- IMAXIO/HELIXIO, Biopôle Clermont-Limagne, Saint-Beauzire, F-63360, France
| | - Marc Lefèbvre
- SESVanderHave N.V./S.A., Soldatenplein Z2 nr15, Industriepark, B-3300 Tienen, Belgium
| | - Steve Barnes
- SESVanderHave N.V./S.A., Soldatenplein Z2 nr15, Industriepark, B-3300 Tienen, Belgium
| | - Stéphane Maury
- Université d'Orléans, Faculté des Sciences, Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), UPRES EA 1207, 45067 Orléans, France INRA, USC1328 Arbres et Réponses aux Contraintes Hydriques et Environnementales (ARCHE), 45067 Orléans, France
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Iquebal MA, Jaiswal S, Angadi UB, Sablok G, Arora V, Kumar S, Rai A, Kumar D. SBMDb: first whole genome putative microsatellite DNA marker database of sugarbeet for bioenergy and industrial applications. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2015; 2015:bav111. [PMID: 26647370 PMCID: PMC4672366 DOI: 10.1093/database/bav111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 10/24/2015] [Indexed: 11/14/2022]
Abstract
DNA marker plays important role as valuable tools to increase crop productivity by finding plausible answers to genetic variations and linking the Quantitative Trait Loci (QTL) of beneficial trait. Prior approaches in development of Short Tandem Repeats (STR) markers were time consuming and inefficient. Recent methods invoking the development of STR markers using whole genomic or transcriptomics data has gained wide importance with immense potential in developing breeding and cultivator improvement approaches. Availability of whole genome sequences and in silico approaches has revolutionized bulk marker discovery. We report world's first sugarbeet whole genome marker discovery having 145 K markers along with 5 K functional domain markers unified in common platform using MySQL, Apache and PHP in SBMDb. Embedded markers and corresponding location information can be selected for desired chromosome, location/interval and primers can be generated using Primer3 core, integrated at backend. Our analyses revealed abundance of 'mono' repeat (76.82%) over 'di' repeats (13.68%). Highest density (671.05 markers/Mb) was found in chromosome 1 and lowest density (341.27 markers/Mb) in chromosome 6. Current investigation of sugarbeet genome marker density has direct implications in increasing mapping marker density. This will enable present linkage map having marker distance of ∼2 cM, i.e. from 200 to 2.6 Kb, thus facilitating QTL/gene mapping. We also report e-PCR-based detection of 2027 polymorphic markers in panel of five genotypes. These markers can be used for DUS test of variety identification and MAS/GAS in variety improvement program. The present database presents wide source of potential markers for developing and implementing new approaches for molecular breeding required to accelerate industrious use of this crop, especially for sugar, health care products, medicines and color dye. Identified markers will also help in improvement of bioenergy trait of bioethanol and biogas production along with reaping advantage of crop efficiency in terms of low water and carbon footprint especially in era of climate change. Database URL: http://webapp.cabgrid.res.in/sbmdb/.
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Affiliation(s)
- Mir Asif Iquebal
- Centre for Agricultural Bioinformatics, Indian Agricultural Statistics Research Institute, Library Avenue, PUSA, New Delhi 110012, India
| | - Sarika Jaiswal
- Centre for Agricultural Bioinformatics, Indian Agricultural Statistics Research Institute, Library Avenue, PUSA, New Delhi 110012, India
| | - U B Angadi
- Centre for Agricultural Bioinformatics, Indian Agricultural Statistics Research Institute, Library Avenue, PUSA, New Delhi 110012, India
| | - Gaurav Sablok
- Biotechnology Unit, Department of Botany, Jai Narain Vyas University, Jodhpur 342003, India, Plant Functional Biology and Climate Change Cluster (C3), University of Technology, Sydney, PO Box 123 Broadway New South Wales 2007, Australia
| | - Vasu Arora
- Centre for Agricultural Bioinformatics, Indian Agricultural Statistics Research Institute, Library Avenue, PUSA, New Delhi 110012, India
| | - Sunil Kumar
- National Bureau of Agriculturally Important Microorganisms, Kusmaur, Mau NathBhanjan, Uttar Pradesh 275101, India and Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, India
| | - Anil Rai
- Centre for Agricultural Bioinformatics, Indian Agricultural Statistics Research Institute, Library Avenue, PUSA, New Delhi 110012, India
| | - Dinesh Kumar
- Centre for Agricultural Bioinformatics, Indian Agricultural Statistics Research Institute, Library Avenue, PUSA, New Delhi 110012, India,
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