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Tai HH, Lagüe M, Thomson S, Aurousseau F, Neilson J, Murphy A, Bizimungu B, Davidson C, Deveaux V, Bègue Y, Wang HY, Xiong X, Jacobs JME. Tuber transcriptome profiling of eight potato cultivars with different cold-induced sweetening responses to cold storage. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 146:163-176. [PMID: 31756603 DOI: 10.1016/j.plaphy.2019.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/01/2019] [Accepted: 11/02/2019] [Indexed: 05/19/2023]
Abstract
Tubers are vegetative reproduction organs formed from underground extensions of the plant stem. Potato tubers are harvested and stored for months. Storage under cold temperatures of 2-4 °C is advantageous for supressing sprouting and diseases. However, development of reducing sugars can occur with cold storage through a process called cold-induced sweetening (CIS). CIS is undesirable as it leads to darkened color with fry processing. The purpose of the current study was to find differences in biological responses in eight cultivars with variation in CIS resistance. Transcriptome sequencing was done on tubers before and after cold storage and three approaches were taken for gene expression analysis: 1. Gene expression correlated with end-point glucose after cold storage, 2. Gene expression correlated with increased glucose after cold storage (after-before), and 3. Differential gene expression before and after cold storage. Cultivars with high CIS resistance (low glucose after cold) were found to increase expression of an invertase inhibitor gene and genes involved in DNA replication and repair after cold storage. The cultivars with low CIS resistance (high glucose after cold) showed increased expression of genes involved in abiotic stress response, gene expression, protein turnover and the mitochondria. There was a small number of genes with similar expression patterns for all cultivars including genes involved in cell wall strengthening and phospholipases. It is proposed that the pattern of gene expression is related to chilling-induced DNA damage repair and cold acclimation and that genetic variation in these processes are related to CIS.
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Affiliation(s)
- Helen H Tai
- Agriculture and Agri-Food Canada Fredericton Research and Development Centre, P. O. Box 20280, 850 Lincoln Rd, Fredericton, N. B, E3B 4Z7, Canada.
| | - Martin Lagüe
- Agriculture and Agri-Food Canada Fredericton Research and Development Centre, P. O. Box 20280, 850 Lincoln Rd, Fredericton, N. B, E3B 4Z7, Canada
| | - Susan Thomson
- The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch, New Zealand
| | - Frédérique Aurousseau
- Sipre-Responsable Scientifique Création Variétale, Station de Recherche du Comité Nord, 76110, Bretteville du Grand Caux, France
| | - Jonathan Neilson
- Agriculture and Agri-Food Canada Fredericton Research and Development Centre, P. O. Box 20280, 850 Lincoln Rd, Fredericton, N. B, E3B 4Z7, Canada
| | - Agnes Murphy
- Agriculture and Agri-Food Canada Fredericton Research and Development Centre, P. O. Box 20280, 850 Lincoln Rd, Fredericton, N. B, E3B 4Z7, Canada
| | - Benoit Bizimungu
- Agriculture and Agri-Food Canada Fredericton Research and Development Centre, P. O. Box 20280, 850 Lincoln Rd, Fredericton, N. B, E3B 4Z7, Canada
| | - Charlotte Davidson
- Agriculture and Agri-Food Canada Fredericton Research and Development Centre, P. O. Box 20280, 850 Lincoln Rd, Fredericton, N. B, E3B 4Z7, Canada
| | - Virginie Deveaux
- Sipre-Responsable Scientifique Création Variétale, Station de Recherche du Comité Nord, 76110, Bretteville du Grand Caux, France
| | - Yves Bègue
- Sipre-Responsable Scientifique Création Variétale, Station de Recherche du Comité Nord, 76110, Bretteville du Grand Caux, France
| | - Hui Ying Wang
- College of Horticulture and Landscape, Hunan Agriculture Univ, Hunan, Changsha, 410128, China
| | - Xingyao Xiong
- College of Horticulture and Landscape, Hunan Agriculture Univ, Hunan, Changsha, 410128, China
| | - Jeanne M E Jacobs
- The New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch, New Zealand
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Quantitative trait loci for starch-corrected chip color after harvest, cold storage and after reconditioning mapped in diploid potato. Mol Genet Genomics 2019; 295:209-219. [PMID: 31642957 DOI: 10.1007/s00438-019-01616-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 10/09/2019] [Indexed: 12/25/2022]
Abstract
The objective of this study was to map the quantitative trait loci (QTLs) for chip color after harvest (AH), cold storage (CS) and after reconditioning (RC) in diploid potato and compare them with QTLs for starch-corrected chip color. Chip color traits AH, CS, and RC significantly correlated with tuber starch content (TSC). To limit the effect of starch content, the chip color was corrected for TSC. The QTLs for chip color (AH, CS, and RC) and the starch-corrected chip color determined with the starch content after harvest (SCAH), after cold storage (SCCS) and after reconditioning (SCRC) were compared to assess the extent of the effect of starch and the location of genetic factors underlying this effect on chip color. We detected QTLs for the AH, CS, RC and starch-corrected traits on ten potato chromosomes, confirming the polygenic nature of the traits. The QTLs with the strongest effects were detected on chromosomes I (AH, 0 cM, 11.5% of variance explained), IV (CS, 43.9 cM, 12.7%) and I (RC, 49.7 cM, 14.1%). When starch correction was applied, the QTLs with the strongest effects were revealed on chromosomes VIII (SCAH, 39.3 cM, 10.8% of variance explained), XI (SCCS, 79.5 cM, 10.9%) and IV (SCRC, 43.9 cM, 10.8%). Applying the starch correction changed the landscape of QTLs for chip color, as some QTLs became statistically insignificant, shifted or were refined, and new QTLs were detected for SCAH. The QTLs on chromosomes I and IV were significant for all traits with and without starch correction.
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Massa AN, Manrique-Carpintero NC, Coombs J, Haynes KG, Bethke PC, Brandt TL, Gupta SK, Yencho GC, Novy RG, Douches DS. Linkage analysis and QTL mapping in a tetraploid russet mapping population of potato. BMC Genet 2018; 19:87. [PMID: 30241465 PMCID: PMC6150958 DOI: 10.1186/s12863-018-0672-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 09/12/2018] [Indexed: 01/16/2023] Open
Abstract
Background Genome-wide single nucleotide polymorphism (SNP) markers coupled with allele dosage information has emerged as a powerful tool for studying complex traits in cultivated autotetraploid potato (Solanum tuberosum L., 2n = 4× = 48). To date, this approach has been effectively applied to the identification of quantitative trait loci (QTLs) underlying highly heritable traits such as disease resistance, but largely unexplored for traits with complex patterns of inheritance. Results In this study, an F1 tetraploid russet mapping population (162 individuals) was evaluated for multiple quantitative traits over two years and two locations to identify QTLs associated with tuber sugar concentration, processing quality, vine maturity, and other high-value agronomic traits. We report the linkage maps for the 12 potato chromosomes and the QTL location with corresponding genetic models and candidate SNPs explaining the highest phenotypic variation for tuber quality and maturity related traits. Significant QTLs for tuber glucose concentration and tuber fry color were detected on chromosomes 4, 5, 6, 10, and 11. Collectively, these QTLs explained between 24 and 46% of the total phenotypic variation for tuber glucose and fry color, respectively. The QTL on chromosome 10 was associated with apoplastic invertases, with ‘Premier Russet’ contributing the favorable allele for fry processing quality. On chromosome 5, minor-effect QTLs for tuber glucose concentration and fry color co-localized with various major-effect QTLs, including vine maturity, growth habit, tuber shape, early blight (Altenaria tenuis), and Verticillium wilt (Verticillium spp.). Conclusions Linkage analysis and QTL mapping in a russet mapping population (A05141) using SNP dosage information successfully identified favorable alleles and candidate SNPs for resistance to the accumulation of tuber reducing sugars. These novel markers have a high potential for the improvement of tuber processing quality. Moreover, the discovery of different genetic models for traits with overlapping QTLs at the maturity locus clearly suggests an independent genetic control. Electronic supplementary material The online version of this article (10.1186/s12863-018-0672-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alicia N Massa
- USDA, Agricultural Research Service, National Peanut Research Laboratory, 1011 Forrester DR., SE, Dawson, GA, 39842, USA.
| | - Norma C Manrique-Carpintero
- Plant, Soil and Microbial Sciences Department, Michigan State University, 1066 Bogue St, East Lansing, MI, 48824, USA
| | - Joseph Coombs
- Plant, Soil and Microbial Sciences Department, Michigan State University, 1066 Bogue St, East Lansing, MI, 48824, USA
| | - Kathleen G Haynes
- USDA, Agricultural Research Service, 10300 Baltimore Ave, Beltsville, MD, 20705-1249, USA
| | - Paul C Bethke
- USDA, Agricultural Research Service, Vegetable Crops Research Unit, 1575 Linden Drive, Madison, WI, 53706, USA
| | | | - Sanjay K Gupta
- Department of Soil, Water, and Climate, 1991 Upper Buford Circle, Saint Paul, MN, 55108, USA
| | - G Craig Yencho
- Department of Horticulture, North Carolina State University, 214 Kilgore Hall, Raleigh, NC, 27695, USA
| | - Richard G Novy
- USDA Agricultural Research Service, Small Grains and Potato Germplasm Research Unit, 1693 S 2700 W, Aberdeen, ID, 83210, USA
| | - David S Douches
- Plant, Soil and Microbial Sciences Department, Michigan State University, 1066 Bogue St, East Lansing, MI, 48824, USA.
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Xiao G, Huang W, Cao H, Tu W, Wang H, Zheng X, Liu J, Song B, Xie C. Genetic Loci Conferring Reducing Sugar Accumulation and Conversion of Cold-Stored Potato Tubers Revealed by QTL Analysis in a Diploid Population. FRONTIERS IN PLANT SCIENCE 2018; 9:315. [PMID: 29593769 PMCID: PMC5854652 DOI: 10.3389/fpls.2018.00315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 02/23/2018] [Indexed: 05/29/2023]
Abstract
Cold-induced sweetening (CIS) caused by reducing sugar (RS) accumulation during storage in low temperature in potato tubers is a critical factor influencing the quality of fried potato products. The reconditioning (REC) by arising storage temperature is a common measure to lower down RS. However, both CIS and REC are genotype-dependent and the genetic basis remains uncertain. In the present study, with a diploid potato population with broad genetic background, four reproducible QTL of CIS and two of REC were resolved on chromosomes 5, 6, and 7 of the CIS-sensitive parent and chromosomes 5 and 11 of the CIS-resistant parent, respectively, implying that these two traits may be genetically independent. This hypothesis was also supported by the colocalization of two functional genes, a starch synthesis gene AGPS2 mapped in QTL CIS_E_07-1 and a starch hydrolysis gene GWD colocated with QTL REC_B_05-1. The cumulative effects of identified QTL were proved to contribute largely and stably to CIS and REC and confirmed with a natural population composed of a range of cultivars and breeding lines. The present research identified reproducible QTL for CIS and REC of potato in diverse conditions and elucidated for the first time their cumulative genetic effects, which provides theoretical bases and applicable means for tuber quality improvement.
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Affiliation(s)
- Guilin Xiao
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Wei Huang
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Hongju Cao
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Wuhan, China
| | - Wei Tu
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Wuhan, China
| | - Haibo Wang
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xueao Zheng
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Jun Liu
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Botao Song
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Horticultural Plant Biology (HZAU), Ministry of Education, Wuhan, China
| | - Conghua Xie
- Key Laboratory of Potato Biology and Biotechnology, Ministry of Agriculture, Wuhan, China
- National Center for Vegetable Improvement (Central China), Wuhan, China
- Potato Engineering and Technology Research Center of Hubei Province, Wuhan, China
- College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
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5
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Braun SR, Endelman JB, Haynes KG, Jansky SH. Quantitative Trait Loci for Resistance to Common Scab and Cold-Induced Sweetening in Diploid Potato. THE PLANT GENOME 2017; 10. [PMID: 29293805 DOI: 10.3835/plantgenome2016.10.0110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The development of germplasm with resistance to common scab and cold-induced sweetening is a high priority for the potato ( L.) industry. A mapping population was developed from mating two individuals of a diploid family generated by crossing the susceptible cultivated potato clone US-W4 to the highly resistant wild relative ( Bitter) clone '524-8'. Progeny were evaluated in replicated field trials. Tubers were scored for percentage of surface area with scab lesions, scab lesion type, cold-induced sweetening, average tuber weight, and dry matter. Plants were evaluated for vine maturity. A genetic map was constructed, quantitative trait loci (QTLs) were identified, and the gene action of significant QTLs was characterized using 1606 single nucleotide polymorphisms (SNPs). Significant QTLs for common scab percentage of surface area covered with lesions and lesion type were identified in overlapping regions on chromosome 11 ( = 21.0 and 18.2%, respectively). Quantitative trait loci were identified on chromosomes 4 ( = 17.1%) and 6 ( = 19.4%) for cold-induced sweetening, chromosome 5 for maturity ( = 29.8%), and chromosome 1 ( = 26.3 and 22.0%) for average tuber weight. Identification of QTLs is the first step toward developing molecular markers for breeders to efficiently integrate these desirable traits into cultivars.
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Gebhardt C. The historical role of species from the Solanaceae plant family in genetic research. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2016; 129:2281-2294. [PMID: 27744490 PMCID: PMC5121179 DOI: 10.1007/s00122-016-2804-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/12/2016] [Indexed: 05/20/2023]
Abstract
This article evaluates the main contributions of tomato, tobacco, petunia, potato, pepper and eggplant to classical and molecular plant genetics and genomics since the beginning of the twentieth century. Species from the Solanaceae family form integral parts of human civilizations as food sources and drugs since thousands of years, and, more recently, as ornamentals. Some Solanaceous species were subjects of classical and molecular genetic research over the last 100 years. The tomato was one of the principal models in twentieth century classical genetics and a pacemaker of genome analysis in plants including molecular linkage maps, positional cloning of disease resistance genes and quantitative trait loci (QTL). Besides that, tomato is the model for the genetics of fruit development and composition. Tobacco was the major model used to establish the principals and methods of plant somatic cell genetics including in vitro propagation of cells and tissues, totipotency of somatic cells, doubled haploid production and genetic transformation. Petunia was a model for elucidating the biochemical and genetic basis of flower color and development. The cultivated potato is the economically most important Solanaceous plant and ranks third after wheat and rice as one of the world's great food crops. Potato is the model for studying the genetic basis of tuber development. Molecular genetics and genomics of potato, in particular association genetics, made valuable contributions to the genetic dissection of complex agronomic traits and the development of diagnostic markers for breeding applications. Pepper and eggplant are horticultural crops of worldwide relevance. Genetic and genomic research in pepper and eggplant mostly followed the tomato model. Comparative genome analysis of tomato, potato, pepper and eggplant contributed to the understanding of plant genome evolution.
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Sołtys-Kalina D, Szajko K, Sierocka I, Śliwka J, Strzelczyk-Żyta D, Wasilewicz-Flis I, Jakuczun H, Szweykowska-Kulinska Z, Marczewski W. Novel candidate genes AuxRP and Hsp90 influence the chip color of potato tubers. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2015; 35:224. [PMID: 26612975 PMCID: PMC4648990 DOI: 10.1007/s11032-015-0415-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 11/11/2015] [Indexed: 05/11/2023]
Abstract
Potato (Solanum tuberosum L.) tubers exhibit significant variation in reducing sugar content directly after harvest, cold storage and reconditioning. Here, we performed QTL analysis for chip color, which is strongly influenced by reducing sugar content, in a diploid potato mapping population. Two QTL on chromosomes I and VI were detected for chip color after harvest and reconditioning. Only one region on chromosome VI was linked with cold-induced sweetening. Using the RT-PCR technique, we showed differential expression of the auxin-regulated protein (AuxRP) gene. The AuxRP transcript was presented in light chip color parental clone DG 97-952 and the RNA progeny of the bulk sample consisting of light chip color phenotypes after cold storage. This amplicon was absent in dark chip parental clone DG 08-26/39 and the RNA bulk sample of dark chip progeny. Genetic variation of AuxRP explained up to 16.6 and 15.2 % of the phenotypic variance after harvest and 3 months of storage at 4 °C, respectively. Using an alternative approach, the RDA-cDNA method was used to recognize 25 gene sequences, of which 11 could be assigned to potato chromosome VI. One of these genes, Heat-shock protein 90 (Hsp90), demonstrated higher mRNA and protein expression in RT-qPCR and western blotting assays in the dark chip color progeny bulk sample compared with the light chip color progeny bulk sample. Our study, for the first time, suggests that the AuxRP and Hsp90 genes are novel candidate genes capable of influencing the chip color of potato tubers.
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Affiliation(s)
- Dorota Sołtys-Kalina
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
| | - Katarzyna Szajko
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
| | - Izabela Sierocka
- />Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland
| | - Jadwiga Śliwka
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
| | - Danuta Strzelczyk-Żyta
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
| | - Iwona Wasilewicz-Flis
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
| | - Henryka Jakuczun
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
| | - Zofia Szweykowska-Kulinska
- />Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland
| | - Waldemar Marczewski
- />Plant Breeding and Acclimatization Institute, National Research Institute, Młochów, Platanowa 19, 05-831 Młochów, Poland
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D'hoop BB, Keizer PLC, Paulo MJ, Visser RGF, van Eeuwijk FA, van Eck HJ. Identification of agronomically important QTL in tetraploid potato cultivars using a marker-trait association analysis. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2014; 127:731-48. [PMID: 24408376 DOI: 10.1007/s00122-013-2254-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 12/13/2013] [Indexed: 05/23/2023]
Abstract
Nineteen tuber quality traits in potato were phenotyped in 205 cultivars and 299 breeder clones. Association analysis using 3364 AFLP loci and 653 SSR-alleles identified QTL for these traits. Two association mapping panels were analysed for marker-trait associations to identify quantitative trait loci (QTL). The first panel comprised 205 historical and contemporary tetraploid potato cultivars that were phenotyped in field trials at two locations with two replicates (the academic panel). The second panel consisted of 299 potato cultivars and included recent breeds obtained from five Dutch potato breeding companies and reference cultivars (the industrial panel). Phenotypic data for the second panel were collected during subsequent clonal selection generations at the individual breeding companies. QTL were identified for 19 agro-morphological and quality traits. Two association mapping models were used: a baseline model without, and a more advanced model with correction for population structure and genetic relatedness. Correction for population structure and genetic relatedness was performed with a kinship matrix estimated from marker information. The detected QTL partly not only confirmed previous studies, e.g. for tuber shape and frying colour, but also new QTL were found like for after baking darkening and enzymatic browning. Pleiotropic effects could be discerned for several QTL.
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Affiliation(s)
- Björn B D'hoop
- Plant Breeding, Wageningen University and Research Centre, P.O. Box 386, 6700 AJ, Wageningen, The Netherlands
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9
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Li L, Tacke E, Hofferbert HR, Lübeck J, Strahwald J, Draffehn AM, Walkemeier B, Gebhardt C. Validation of candidate gene markers for marker-assisted selection of potato cultivars with improved tuber quality. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2013; 126:1039-52. [PMID: 23299900 PMCID: PMC3607734 DOI: 10.1007/s00122-012-2035-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 12/16/2012] [Indexed: 05/20/2023]
Abstract
Tuber yield, starch content, starch yield and chip color are complex traits that are important for industrial uses and food processing of potato. Chip color depends on the quantity of reducing sugars glucose and fructose in the tubers, which are generated by starch degradation. Reducing sugars accumulate when tubers are stored at low temperatures. Early and efficient selection of cultivars with superior yield, starch yield and chip color is hampered by the fact that reliable phenotypic selection requires multiple year and location trials. Application of DNA-based markers early in the breeding cycle, which are diagnostic for superior alleles of genes that control natural variation of tuber quality, will reduce the number of clones to be evaluated in field trials. Association mapping using genes functional in carbohydrate metabolism as markers has discovered alleles of invertases and starch phosphorylases that are associated with tuber quality traits. Here, we report on new DNA variants at loci encoding ADP-glucose pyrophosphorylase and the invertase Pain-1, which are associated with positive or negative effect with chip color, tuber starch content and starch yield. Marker-assisted selection (MAS) and marker validation were performed in tetraploid breeding populations, using various combinations of 11 allele-specific markers associated with tuber quality traits. To facilitate MAS, user-friendly PCR assays were developed for specific candidate gene alleles. In a multi-parental population of advanced breeding clones, genotypes were selected for having different combinations of five positive and the corresponding negative marker alleles. Genotypes combining five positive marker alleles performed on average better than genotypes with four negative alleles and one positive allele. When tested individually, seven of eight markers showed an effect on at least one quality trait. The direction of effect was as expected. Combinations of two to three marker alleles were identified that significantly improved average chip quality after cold storage and tuber starch content. In F1 progeny of a single-cross combination, MAS with six markers did not give the expected result. Reasons and implications for MAS in potato are discussed.
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Affiliation(s)
- Li Li
- Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
- Present Address: State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 150040 Harbin, People’s Republic of China
| | | | | | - Jens Lübeck
- Saka-Pflanzenzucht GbR, 24340 Windeby, Germany
| | | | - Astrid M. Draffehn
- Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
| | - Birgit Walkemeier
- Max Planck Institute for Plant Breeding Research, 50829 Cologne, Germany
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10
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Song YS, Hepting L, Schweizer G, Hartl L, Wenzel G, Schwarzfischer A. Mapping of extreme resistance to PVY (Ry (sto)) on chromosome XII using anther-culture-derived primary dihaploid potato lines. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2005; 111:879-87. [PMID: 16044270 DOI: 10.1007/s00122-005-0010-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2005] [Accepted: 05/31/2005] [Indexed: 05/03/2023]
Abstract
The inheritance of extreme resistance to PVY (Ry (sto)) by a single dominant locus was confirmed by obtaining a 1:1 segregation ratio in a virus inoculation test with 28 resistant (Ryry) to 29 susceptible (ryry) anther culture-derived dihaploid lines (2n=2x=24) from cv. "Assia" (2n=4x=48) having extreme resistance derived from Solanum stoloniferum in simplex constitution (Ryryryry). Twelve Ry (sto) markers selected in AFLP assays using bulked segregant analysis were applied to 106 tested potato cultivars from Germany, The Netherlands and Poland and 19 potato cultivars were identified by these markers as extremely resistant to PVY in alignment with phenotypic data. The locus for extreme resistance (Ry (sto)) to PVY was mapped on chromosome XII co-segregating with the SSR marker STM 0003. The utility of anther-culture derived dihaploid potatoes for genetic marker development was demonstrated. Marker transferability from diploids to tetraploids provides an optimistic potential for marker-assisted selection in potato breeding programs.
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Affiliation(s)
- Ye-Su Song
- Bayerische Landesanstalt für Landwirtschaft, Institut für Pflanzenbau und Pflanzenzüchtung, Am Gereuth 8, 85354 Freising, Germany
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11
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Menéndez CM, Ritter E, Schäfer-Pregl R, Walkemeier B, Kalde A, Salamini F, Gebhardt C. Cold sweetening in diploid potato: mapping quantitative trait loci and candidate genes. Genetics 2002; 162:1423-34. [PMID: 12454085 PMCID: PMC1462350 DOI: 10.1093/genetics/162.3.1423] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A candidate gene approach has been used as a first step to identify the molecular basis of quantitative trait variation in potato. Sugar content of tubers upon cold storage was the model trait chosen because the metabolic pathways involved in starch and sugar metabolism are well known and many of the genes have been cloned. Tubers of two F(1) populations of diploid potato grown in six environments were evaluated for sugar content after cold storage. The populations were genotyped with RFLP, AFLP, and candidate gene markers. QTL analysis revealed that QTL for glucose, fructose, and sucrose content were located on all potato chromosomes. Most QTL for glucose content mapped to the same positions as QTL for fructose content. QTL explaining >10% of the variability for reducing sugars were located on linkage groups I, III, VII, VIII, IX, and XI. QTL consistent across populations and/or environments were identified. QTL were linked to genes encoding invertase, sucrose synthase 3, sucrose phosphate synthase, ADP-glucose pyrophosphorylase, sucrose transporter 1, and a putative sucrose sensor. The results suggest that allelic variants of enzymes operating in carbohydrate metabolic pathways contribute to the genetic variation in cold sweetening.
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