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Wang Z, Zhang W, Zhou Y, Zhang Q, Kulkarni KP, Melmaiee K, Tian Y, Dong M, Gao Z, Su Y, Yu H, Xu G, Li Y, He H, Liu Q, Sun H. Genetic and epigenetic signatures for improved breeding of cultivated blueberry. HORTICULTURE RESEARCH 2024; 11:uhae138. [PMID: 38988623 PMCID: PMC11233858 DOI: 10.1093/hr/uhae138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/05/2024] [Indexed: 07/12/2024]
Abstract
Blueberry belongs to the Vaccinium genus and is a highly popular fruit crop with significant economic importance. It was not until the early twentieth century that they began to be domesticated through extensive interspecific hybridization. Here, we collected 220 Vaccinium accessions from various geographical locations, including 154 from the United States, 14 from China, eight from Australia, and 29 from Europe and other countries, comprising 164 Vaccinium corymbosum, 15 Vaccinium ashei, 10 lowbush blueberries, seven half-high blueberries, and others. We present the whole-genome variation map of 220 accessions and reconstructed the hundred-year molecular history of interspecific hybridization of blueberry. We focused on the two major blueberry subgroups, the northern highbush blueberry (NHB) and southern highbush blueberry (SHB) and identified candidate genes that contribute to their distinct traits in climate adaptability and fruit quality. Our analysis unveiled the role of gene introgression from Vaccinium darrowii and V. ashei into SHB in driving the differentiation between SHB and NHB, potentially facilitating SHB's adaptation to subtropical environments. Assisted by genome-wide association studies, our analysis suggested VcTBL44 as a pivotal gene regulator governing fruit firmness in SHB. Additionally, we conducted whole-genome bisulfite sequencing on nine NHB and 12 SHB cultivars, and characterized regions that are differentially methylated between the two subgroups. In particular, we discovered that the β-alanine metabolic pathway genes were enriched for DNA methylation changes. Our study provides high-quality genetic and epigenetic variation maps for blueberry, which offer valuable insights and resources for future blueberry breeding.
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Affiliation(s)
- Zejia Wang
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Wanchen Zhang
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Yangyan Zhou
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Qiyan Zhang
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Krishnanand P Kulkarni
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901, USA
| | - Kalpalatha Melmaiee
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901, USA
| | - Youwen Tian
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Mei Dong
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Zhaoxu Gao
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Yanning Su
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Hong Yu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Guohui Xu
- College of Life and Health, Dalian University, Dalian 116622, China
| | - Yadong Li
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Hang He
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Qikun Liu
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Haiyue Sun
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
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Dyukaryeva V, Mallik AU. Shade Effect on Phenology, Fruit Yield, and Phenolic Content of Two Wild Blueberry Species in Northwestern Ontario, Canada. PLANTS (BASEL, SWITZERLAND) 2023; 12:4099. [PMID: 38140426 PMCID: PMC10747682 DOI: 10.3390/plants12244099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
We studied the effect of shade on the phenology, growth, berry yield, and chemical content of two common blueberry species (Vaccinium myrtilloides and V. angustifolium) in Northwestern Ontario. We hypothesized that high shade would delay vegetative and reproductive phenology and decrease berry yield by increasing resource allocation to vegetative vs. reproductive growth, whereas moderate shade would increase berry phenolic content and antioxidant capacity. We subjected transplanted blueberry plants to a controlled shade treatment and evaluated plant phenological events, vegetative and reproductive growth, berry phenolics, and antioxidant capacity. High shade caused an earlier leaf maturation in V. myrtilloides, delayed flowering in V. angustifolium, and prolonged fruit maturation in both. The berry yield of both species decreased with increasing shade. High shade reduced the berry phenolic content and antioxidant capacity, especially in V. myrtilloides. We concluded that shade shifts species-specific vegetative and reproductive phenology, leading to a difference in resource acquisition, resulting in lower berry yield and antioxidant activity.
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Affiliation(s)
| | - Azim U. Mallik
- Department of Biology, Lakehead University, Thunder Bay, ON P7B 5E1, Canada;
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Zhidkin R, Zhurbenko P, Bogomaz O, Gorodilova E, Katsapov I, Antropov D, Matveeva T. Biodiversity of rolB/C-like Natural Transgene in the Genus Vaccinium L. and Its Application for Phylogenetic Studies. Int J Mol Sci 2023; 24:ijms24086932. [PMID: 37108096 PMCID: PMC10138537 DOI: 10.3390/ijms24086932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/06/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
A variety of plant species found in nature contain agrobacterial T-DNAs in their genomes which they transmit in a series of sexual generations. Such T-DNAs are called cellular T-DNAs (cT-DNAs). cT-DNAs have been discovered in dozens of plant genera, and are suggested to be used in phylogenetic studies, since they are well-defined and unrelated to other plant sequences. Their integration into a particular chromosomal site indicates a founder event and a clear start of a new clade. cT-DNA inserts do not disseminate in the genome after insertion. They can be large and old enough to generate a range of variants, thereby allowing the construction of detailed trees. Unusual cT-DNAs (containing the rolB/C-like gene) were found in our previous study in the genome data of two Vaccinium L. species. Here, we present a deeper study of these sequences in Vaccinium L. Molecular-genetic and bioinformatics methods were applied for sequencing, assembly, and analysis of the rolB/C-like gene. The rolB/C-like gene was discovered in 26 new Vaccinium species and Agapetes serpens (Wight) Sleumer. Most samples were found to contain full-size genes. It allowed us to develop approaches for the phasing of cT-DNA alleles and reconstruct a Vaccinium phylogenetic relationship. Intra- and interspecific polymorphism found in cT-DNA makes it possible to use it for phylogenetic and phylogeographic studies of the Vaccinium genus.
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Affiliation(s)
- Roman Zhidkin
- Department of Genetic and Breeding, St. Petersburg State University, Saint Petersburg 199034, Russia
| | - Peter Zhurbenko
- Department of Genetic and Breeding, St. Petersburg State University, Saint Petersburg 199034, Russia
- Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg 197022, Russia
| | - Olesya Bogomaz
- Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow 119991, Russia
| | | | - Ivan Katsapov
- Department of Genetic and Breeding, St. Petersburg State University, Saint Petersburg 199034, Russia
| | - Dmitry Antropov
- Department of Genetic and Breeding, St. Petersburg State University, Saint Petersburg 199034, Russia
| | - Tatiana Matveeva
- Department of Genetic and Breeding, St. Petersburg State University, Saint Petersburg 199034, Russia
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Manzanero BR, Kulkarni KP, Vorsa N, Reddy UK, Natarajan P, Elavarthi S, Iorizzo M, Melmaiee K. Genomic and evolutionary relationships among wild and cultivated blueberry species. BMC PLANT BIOLOGY 2023; 23:126. [PMID: 36872311 PMCID: PMC9987114 DOI: 10.1186/s12870-023-04124-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Blueberries (Vaccinium section Cyanococcus) are an economically important fruit crop in the United States. Understanding genetic structure and relationships in blueberries is essential to advance the genetic improvement of horticulturally important traits. In the present study, we investigated the genomic and evolutionary relationships in 195 blueberry accessions from five species (comprising 33 V. corymbosum, 14 V. boreale, 81 V. darrowii, 29 V. myrsinites, and 38 V. tenellum) using single nucleotide polymorphisms (SNPs) mined from genotyping-by-sequencing (GBS) data. RESULTS GBS generated ~ 751 million raw reads, of which 79.7% were mapped to the reference genome V. corymbosum cv. Draper v1.0. After filtering (read depth > 3, minor allele frequency > 0.05, and call rate > 0.9), 60,518 SNPs were identified and used in further analyses. The 195 blueberry accessions formed three major clusters on the principal component (PC) analysis plot, in which the first two PCs accounted for 29.2% of the total genetic variance. Nucleotide diversity (π) was highest for V. tenellum and V. boreale (0.023 each), and lowest for V. darrowii (0.012). Using TreeMix analysis, we identified four migration events and deciphered gene flow among the selected species. In addition, we detected a strong V. boreale lineage in cultivated blueberry species. Pairwise SweeD analysis identified a wide sweep (encompassing 32 genes) as a strong signature of domestication on the scaffold VaccDscaff 12. From this region, five genes encoded topoisomerases, six genes encoded CAP-gly domain linker (which regulates the dynamics of the microtubule cytoskeleton), and three genes coded for GSL8 (involved in the synthesis of the cell wall component callose). One of the genes, augustus_masked-VaccDscaff12-processed-gene-172.10, is a homolog of Arabidopsis AT2G25010 and encodes the protein MAINTENANCE OF MERISTEMS-like involved in root and shoot growth. Additional genomic stratification by admixture analysis identified genetic lineages and species boundaries in blueberry accessions. The results from this study indicate that V. boreale is a genetically distant outgroup, while V. darrowii, V. myrsinites, and V. tenellum are closely related. CONCLUSION Our study provides new insights into the evolution and genetic architecture of cultivated blueberries.
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Affiliation(s)
- Byron R. Manzanero
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901 USA
| | - Krishnanand P. Kulkarni
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901 USA
| | - Nicholi Vorsa
- Department of Plant Biology, Rutgers University, New Brunswick, NJ 08901 USA
- Philip E. Marucci Center for Blueberry and Cranberry Research and Extension, Chatsworth, NJ 08019 USA
| | - Umesh K. Reddy
- Department of Biology, West Virginia State University, Institute, WV 25112 USA
| | | | - Sathya Elavarthi
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901 USA
| | - Massimo Iorizzo
- Department of Horticultural Science and Plants for Human Health Institute, NC State University, Kannapolis, NC 28081 USA
| | - Kalpalatha Melmaiee
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901 USA
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Toyama Y, Fujita Y, Toshima S, Hirano T, Yamasaki M, Kunitake H. Comparison of Proanthocyanidin Content in Rabbiteye Blueberry ( Vaccinium virgatum Aiton) Leaves and the Promotion of Apoptosis against HL-60 Promyelocytic Leukemia Cells Using 'Kunisato 35 Gou' Leaf Extract. PLANTS (BASEL, SWITZERLAND) 2023; 12:948. [PMID: 36840296 PMCID: PMC9962561 DOI: 10.3390/plants12040948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Polyphenol-rich rabbiteye blueberry (Vaccinium virgatum Aiton) leaves have attracted attention as a food material. In this study, we compared the total polyphenols, total proanthocyanidin content, and antioxidant activity of the leaves of 18 blueberry varieties and investigated the seasonal variation in polyphenols. We also evaluated the anti-cancer cell proliferation properties of the rabbiteye blueberry leaf specific cultivar 'Kunisato 35 Gou'. Rabbiteye blueberry leaves had significantly higher total polyphenol and total proanthocyanidin values than northern highbush blueberry and southern highbush blueberry leaves. The antioxidant activity of blueberry leaves was highly positively correlated with both the total polyphenol and total proanthocyanidin content. Variations were observed in the total polyphenol and total proanthocyanidin content of rabbiteye blueberry leaves harvested at different points in the growing season; leaves collected in fall to winter contained more epicatechin in addition to proanthocyanidins. In the evaluation of anti-cancer cell proliferation properties against HL-60 promyelocytic leukemia cells, the September-harvested extracts of rabbiteye blueberry 'Kunisato 35 Gou' showed strong properties, and the use of an FITC Annexin V apoptosis detection kit with propidium iodide confirmed that this HL-60 cell death occurred via apoptosis. Limiting the harvest time would make rabbiteye blueberry leaves a more functional food ingredient.
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Affiliation(s)
- Yuki Toyama
- Graduate School of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
| | - Yoko Fujita
- Michimoto Foods Products Co., Ltd., 1667 Kou Tano-cho, Miyazaki 889-1701, Japan
| | - Saki Toshima
- Interdisciplinary Graduate School of Agriculture and Engineering, University of Miyazaki, 1-1 Gakuenkibanadainishi, Miyazaki 889-2192, Japan
| | - Tomonari Hirano
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
| | - Masao Yamasaki
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
| | - Hisato Kunitake
- Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai nishi, Miyazaki 889-2192, Japan
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6
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Chloroplast genome assemblies and comparative analyses of commercially important Vaccinium berry crops. Sci Rep 2022; 12:21600. [PMID: 36517490 PMCID: PMC9751094 DOI: 10.1038/s41598-022-25434-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
Vaccinium is a large genus of shrubs that includes a handful of economically important berry crops. Given the numerous hybridizations and polyploidization events, the taxonomy of this genus has remained the subject of long debate. In addition, berries and berry-based products are liable to adulteration, either fraudulent or unintentional due to misidentification of species. The availability of more genomic information could help achieve higher phylogenetic resolution for the genus, provide molecular markers for berry crops identification, and a framework for efficient genetic engineering of chloroplasts. Therefore, in this study we assembled five Vaccinium chloroplast sequences representing the economically relevant berry types: northern highbush blueberry (V. corymbosum), southern highbush blueberry (V. corymbosum hybrids), rabbiteye blueberry (V. virgatum), lowbush blueberry (V. angustifolium), and bilberry (V. myrtillus). Comparative analyses showed that the Vaccinium chloroplast genomes exhibited an overall highly conserved synteny and sequence identity among them. Polymorphic regions included the expansion/contraction of inverted repeats, gene copy number variation, simple sequence repeats, indels, and single nucleotide polymorphisms. Based on their in silico discrimination power, we suggested variants that could be developed into molecular markers for berry crops identification. Phylogenetic analysis revealed multiple origins of highbush blueberry plastomes, likely due to the hybridization events that occurred during northern and southern highbush blueberry domestication.
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Edger PP, Iorizzo M, Bassil NV, Benevenuto J, Ferrão LFV, Giongo L, Hummer K, Lawas LMF, Leisner CP, Li C, Munoz PR, Ashrafi H, Atucha A, Babiker EM, Canales E, Chagné D, DeVetter L, Ehlenfeldt M, Espley RV, Gallardo K, Günther CS, Hardigan M, Hulse-Kemp AM, Jacobs M, Lila MA, Luby C, Main D, Mengist MF, Owens GL, Perkins-Veazie P, Polashock J, Pottorff M, Rowland LJ, Sims CA, Song GQ, Spencer J, Vorsa N, Yocca AE, Zalapa J. There and back again; historical perspective and future directions for Vaccinium breeding and research studies. HORTICULTURE RESEARCH 2022; 9:uhac083. [PMID: 35611183 PMCID: PMC9123236 DOI: 10.1093/hr/uhac083] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/22/2022] [Indexed: 06/02/2023]
Abstract
The genus Vaccinium L. (Ericaceae) contains a wide diversity of culturally and economically important berry crop species. Consumer demand and scientific research in blueberry (Vaccinium spp.) and cranberry (Vaccinium macrocarpon) have increased worldwide over the crops' relatively short domestication history (~100 years). Other species, including bilberry (Vaccinium myrtillus), lingonberry (Vaccinium vitis-idaea), and ohelo berry (Vaccinium reticulatum) are largely still harvested from the wild but with crop improvement efforts underway. Here, we present a review article on these Vaccinium berry crops on topics that span taxonomy to genetics and genomics to breeding. We highlight the accomplishments made thus far for each of these crops, along their journey from the wild, and propose research areas and questions that will require investments by the community over the coming decades to guide future crop improvement efforts. New tools and resources are needed to underpin the development of superior cultivars that are not only more resilient to various environmental stresses and higher yielding, but also produce fruit that continue to meet a variety of consumer preferences, including fruit quality and health related traits.
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Affiliation(s)
- Patrick P Edger
- Department of Horticulture, Michigan State University, East Lansing, MI, 48824, USA
- MSU AgBioResearch, Michigan State University, East Lansing, MI, 48824, USA
| | - Massimo Iorizzo
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC USA
- Department of Horticultural Science, North Carolina State University, Raleigh, NC USA
| | - Nahla V Bassil
- USDA-ARS, National Clonal Germplasm Repository, Corvallis, OR 97333, USA
| | - Juliana Benevenuto
- Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA
| | - Luis Felipe V Ferrão
- Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA
| | - Lara Giongo
- Fondazione Edmund Mach - Research and Innovation CentreItaly
| | - Kim Hummer
- USDA-ARS, National Clonal Germplasm Repository, Corvallis, OR 97333, USA
| | - Lovely Mae F Lawas
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - Courtney P Leisner
- Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA
| | - Changying Li
- Phenomics and Plant Robotics Center, College of Engineering, University of Georgia, Athens, USA
| | - Patricio R Munoz
- Horticultural Sciences Department, University of Florida, Gainesville, FL 32611, USA
| | - Hamid Ashrafi
- Department of Horticultural Science, North Carolina State University, Raleigh, NC USA
| | - Amaya Atucha
- Department of Horticulture, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Ebrahiem M Babiker
- USDA-ARS Southern Horticultural Laboratory, Poplarville, MS 39470-0287, USA
| | - Elizabeth Canales
- Department of Agricultural Economics, Mississippi State University, Mississippi State, MS 39762, USA
| | - David Chagné
- The New Zealand Institute for Plant and Food Research Limited (PFR), Palmerston North, New Zealand
| | - Lisa DeVetter
- Department of Horticulture, Washington State University Northwestern Washington Research and Extension Center, Mount Vernon, WA, 98221, USA
| | - Mark Ehlenfeldt
- SEBS, Plant Biology, Rutgers University, New Brunswick NJ 01019 USA
| | - Richard V Espley
- The New Zealand Institute for Plant and Food Research Limited (PFR), Palmerston North, New Zealand
| | - Karina Gallardo
- School of Economic Sciences, Washington State University, Puyallup, WA 98371, USA
| | - Catrin S Günther
- The New Zealand Institute for Plant and Food Research Limited (PFR), Palmerston North, New Zealand
| | - Michael Hardigan
- USDA-ARS, Horticulture Crops Research Unit, Corvallis, OR 97333, USA
| | - Amanda M Hulse-Kemp
- USDA-ARS, Genomics and Bioinformatics Research Unit, Raleigh, NC 27695, USA
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USA
| | - MacKenzie Jacobs
- Department of Horticulture, Michigan State University, East Lansing, MI, 48824, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48823, USA
| | - Mary Ann Lila
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC USA
| | - Claire Luby
- USDA-ARS, Horticulture Crops Research Unit, Corvallis, OR 97333, USA
| | - Dorrie Main
- Department of Horticulture, Washington State University, Pullman, WA, 99163, USA
| | - Molla F Mengist
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC USA
- Department of Horticultural Science, North Carolina State University, Raleigh, NC USA
| | | | | | - James Polashock
- SEBS, Plant Biology, Rutgers University, New Brunswick NJ 01019 USA
| | - Marti Pottorff
- Plants for Human Health Institute, North Carolina State University, Kannapolis, NC USA
| | - Lisa J Rowland
- USDA-ARS, Genetic Improvement of Fruits and Vegetables Laboratory, Beltsville, MD 20705, USA
| | - Charles A Sims
- Food Science and Human Nutrition Department, University of Florida, Gainesville, FL 32611, USA
| | - Guo-qing Song
- Plant Biotechnology Resource and Outreach Center, Department of Horticulture, Michigan State University, East Lansing, MI 48824, USA
| | - Jessica Spencer
- Department of Horticultural Science, North Carolina State University, Raleigh, NC USA
| | - Nicholi Vorsa
- SEBS, Plant Biology, Rutgers University, New Brunswick NJ 01019 USA
| | - Alan E Yocca
- Department of Plant Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Juan Zalapa
- USDA-ARS, VCRU, Department of Horticulture, University of Wisconsin-Madison, Madison, WI 53706, USA
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Comparative Transcriptomic Analysis Provides Insight into the Key Regulatory Pathways and Differentially Expressed Genes in Blueberry Flower Bud Endo- and Ecodormancy Release. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8020176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Endodormancy is the stage that perennial plants must go through to prepare for the next seasonal cycle, and it is also an adaptation that allows plants to survive harsh winters. Blueberries (Vaccinium spp.) are known to have high nutritional and commercial value. To better understand the molecular mechanisms of bud dormancy release, the transcriptomes of flower buds from the southern highbush blueberry variety “O’Neal” were analyzed at seven time points of the endo- and ecodormancy release processes. Pairwise comparisons were conducted between adjacent time points; five kinds of phytohormone were identified via these processes. A total of 12,350 differentially expressed genes (DEGs) were obtained from six comparisons. Gene Ontology analysis indicated that these DEGs were significantly involved in metabolic processes and catalytic activity. KEGG pathway analysis showed that these DEGs were predominantly mapped to metabolic pathways and the biosynthesis of secondary metabolites in endodormancy release, but these DEGs were significantly enriched in RNA transport, plant hormone signal transduction, and circadian rhythm pathways in the process of ecodormancy release. The contents of abscisic acid (ABA), salicylic acid (SA), and 1-aminocyclopropane-1-carboxylate (ACC) decreased in endo- and ecodormancy release, and the jasmonic acid (JA) level first decreased in endodormancy release and then increased in ecodormancy release. Weighted correlation network analysis (WGCNA) of transcriptomic data associated with hormone contents generated 25 modules, 9 of which were significantly related to the change in hormone content. The results of this study have important reference value for elucidating the molecular mechanism of flower bud dormancy release.
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Yu J, Hulse-Kemp AM, Babiker E, Staton M. High-quality reference genome and annotation aids understanding of berry development for evergreen blueberry (Vaccinium darrowii). HORTICULTURE RESEARCH 2021; 8:228. [PMID: 34719668 PMCID: PMC8558335 DOI: 10.1038/s41438-021-00641-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/22/2021] [Accepted: 07/13/2021] [Indexed: 05/07/2023]
Abstract
Vaccinium darrowii Camp (2n = 2x = 24) is a native North American blueberry species and an important source of traits such as low chill requirement in commercial southern highbush blueberry breeding (Vaccinium corymbosum, 2n = 4x = 48). We present a chromosomal-scale genome of V. darrowii generated by the combination of PacBio sequencing and high throughput chromatin conformation capture (Hi-C) scaffolding technologies, yielding a total length of 1.06 Gigabases (Gb). Over 97.8% of the genome sequences are scaffolded into 24 chromosomes representing the two haplotypes. The primary haplotype assembly of V. darrowii contains 34,809 protein-coding genes. Comparison to a V. corymbosum haplotype assembly reveals high collinearity between the two genomes with small intrachromosomal rearrangements in eight chromosome pairs. With small RNA sequencing, the annotation was further expanded to include more than 200,000 small RNA loci and 638 microRNAs expressed in berry tissues. Transcriptome analysis across fruit development stages indicates that genes involved in photosynthesis are downregulated, while genes involved in flavonoid and anthocyanin biosynthesis are significantly increased at the late stage of berry ripening. A high-quality reference genome and accompanying annotation of V. darrowii is a significant new resource for assessing the evergreen blueberry contribution to the breeding of southern highbush blueberries.
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Affiliation(s)
- Jiali Yu
- Genome Science and Technology Program, University of Tennessee, Knoxville, TN, 37996, USA
| | - Amanda M Hulse-Kemp
- USDA-ARS Genomics and Bioinformatics Research Unit, Raleigh, NC, USA
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, USA
| | - Ebrahiem Babiker
- USDA-ARS Thad Cochran Southern Horticultural Laboratory, Poplarville, MS, USA.
| | - Margaret Staton
- Genome Science and Technology Program, University of Tennessee, Knoxville, TN, 37996, USA.
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN, 37996, USA.
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Nagasaka K, Nishiyama S, Fujikawa M, Yamane H, Shirasawa K, Babiker E, Tao R. Genome-Wide Identification of Loci Associated With Phenology-Related Traits and Their Adaptive Variations in a Highbush Blueberry Collection. FRONTIERS IN PLANT SCIENCE 2021; 12:793679. [PMID: 35126419 PMCID: PMC8814416 DOI: 10.3389/fpls.2021.793679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/07/2021] [Indexed: 05/04/2023]
Abstract
Genetic variation in phenological traits is the key in expanding production areas of crops. Southern highbush blueberry (SHB) is a blueberry cultivar group adapted to warmer climates and has been developed by multiple interspecific hybridizations between elite northern highbush blueberry (NHB) (Vaccinium corymbosum L.) and low-chill Vaccinium species native to the southern United States. In this study, we employed a collection of diverse SHB accessions and performed a genome-wide association study (GWAS) for five phenology-related traits [chilling requirement (CR), flowering date, ripening date, fruit development period, and continuous flowering] using polyploid GWAS models. Phenology-related traits showed higher heritability and larger correlation coefficients between year replications, which resulted in the detection of robust phenotype-genotype association peaks. Notably, a single association peak for the CR was detected on Chromosome 4. Comparison of genotypes at the GWAS peaks between NHB and SHB revealed the putative introgression of low-chill and late-flowering alleles into the highbush genetic pool. Our results provide basic insights into the diversity of phenological traits in blueberry and the genetic establishment of current highbush cultivar groups.
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Affiliation(s)
- Kyoka Nagasaka
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Soichiro Nishiyama
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
- *Correspondence: Soichiro Nishiyama,
| | - Mao Fujikawa
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hisayo Yamane
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | | | - Ebrahiem Babiker
- Thad Cochran Southern Horticultural Laboratory, United States Department of Agriculture, Agricultural Research Service, Poplarville, MS, United States
- Ebrahiem Babiker,
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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