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Yao G, Zhang YQ, Barrett C, Xue B, Bellot S, Baker WJ, Ge XJ. A plastid phylogenomic framework for the palm family (Arecaceae). BMC Biol 2023; 21:50. [PMID: 36882831 PMCID: PMC9993706 DOI: 10.1186/s12915-023-01544-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 02/14/2023] [Indexed: 03/09/2023] Open
Abstract
BACKGROUND Over the past decade, phylogenomics has greatly advanced our knowledge of angiosperm evolution. However, phylogenomic studies of large angiosperm families with complete species or genus-level sampling are still lacking. The palms, Arecaceae, are a large family with ca. 181 genera and 2600 species and are important components of tropical rainforests bearing great cultural and economic significance. Taxonomy and phylogeny of the family have been extensively investigated by a series of molecular phylogenetic studies in the last two decades. Nevertheless, some phylogenetic relationships within the family are not yet well-resolved, especially at the tribal and generic levels, with consequent impacts for downstream research. RESULTS Plastomes of 182 palm species representing 111 genera were newly sequenced. Combining these with previously published plastid DNA data, we were able to sample 98% of palm genera and conduct a plastid phylogenomic investigation of the family. Maximum likelihood analyses yielded a robustly supported phylogenetic hypothesis. Phylogenetic relationships among all five palm subfamilies and 28 tribes were well-resolved, and most inter-generic phylogenetic relationships were also resolved with strong support. CONCLUSIONS The inclusion of nearly complete generic-level sampling coupled with nearly complete plastid genomes strengthened our understanding of plastid-based relationships of the palms. This comprehensive plastid genome dataset complements a growing body of nuclear genomic data. Together, these datasets form a novel phylogenomic baseline for the palms and an increasingly robust framework for future comparative biological studies of this exceptionally important plant family.
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Affiliation(s)
- Gang Yao
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Yu-Qu Zhang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.,Present Address: College of Pharmacy, Shaanxi University of Chinese Medicine, Xi'an, China
| | - Craig Barrett
- Department of Biology, West Virginia University, Morgantown, WV, USA
| | - Bine Xue
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | | | | | - Xue-Jun Ge
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China. .,Center of Conservation Biology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China.
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Bacon CD, Hill A, ter Steege H, Antonelli A, Damasco G. The impact of species complexes on tree abundance patterns in Amazonia. AMERICAN JOURNAL OF BOTANY 2022; 109:1525-1528. [PMID: 36193824 PMCID: PMC9828733 DOI: 10.1002/ajb2.16069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Affiliation(s)
- Christine D. Bacon
- Department of Biological and Environmental SciencesUniversity of GothenburgCarl Skottsbergs gata 22BSE‐413 19GothenburgSweden
- Gothenburg Global Biodiversity CentreBox 461SE‐405 30GothenburgSweden
| | - Adrian Hill
- Department of Biological and Environmental SciencesUniversity of GothenburgCarl Skottsbergs gata 22BSE‐413 19GothenburgSweden
- Gothenburg Global Biodiversity CentreBox 461SE‐405 30GothenburgSweden
| | | | - Alexandre Antonelli
- Department of Biological and Environmental SciencesUniversity of GothenburgCarl Skottsbergs gata 22BSE‐413 19GothenburgSweden
- Gothenburg Global Biodiversity CentreBox 461SE‐405 30GothenburgSweden
- Royal Botanic Gardens, KewTW9 3AERichmond, SurreyUK
- Department of Plant SciencesUniversity of OxfordSouth Parks RoadOxfordOX1 3RBUK
| | - Gabriel Damasco
- Gothenburg Global Biodiversity CentreBox 461SE‐405 30GothenburgSweden
- Departamento de Botânica e ZoologiaUniversidade Federal do Rio Grande do NorteNatalRN59078‐970Brazil
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Chen DJ, Landis JB, Wang HX, Sun QH, Wang Q, Wang HF. Plastome structure, phylogenomic analyses and molecular dating of Arecaceae. FRONTIERS IN PLANT SCIENCE 2022; 13:960588. [PMID: 36237503 PMCID: PMC9552784 DOI: 10.3389/fpls.2022.960588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/08/2022] [Indexed: 05/29/2023]
Abstract
Arecaceae is a species-rich clade of Arecales, while also being regarded as a morphologically diverse angiosperm family with numerous species having significant economic, medicinal, and ornamental value. Although in-depth studies focused on the chloroplast structure of Arecaceae, as well as inferring phylogenetic relationships using gene fragments, have been reported in recent years, a comprehensive analysis of the chloroplast structure of Arecaceae is still needed. Here we perform a comprehensive analysis of the structural features of the chloroplast genome of Arecaceae, compare the variability of gene sequences, infer phylogenetic relationships, estimate species divergence times, and reconstruct ancestral morphological traits. In this study, 74 chloroplast genomes of Arecaceae were obtained, covering five subfamilies. The results show that all chloroplast genomes possess a typical tetrad structure ranging in size between 153,806-160,122 bp, with a total of 130-137 genes, including 76-82 protein-coding genes, 29-32 tRNA genes, and 4 rRNA genes. Additionally, the total GC content was between 36.9-37.7%. Analysis of the SC/IR boundary indicated that the IR region underwent expansion or contraction. Phylogenetic relationships indicate that all five subfamilies in Arecaceae are monophyletic and that Ceroxyloideae and Arecoideae are sister groups (BS/PP = 100/1). The results of molecular dating indicate that the age of the crown group of Arecaceae is likely to be 96.60 [84.90-107.60] Ma, while the age of the stem group is 102.40 [93.44-111.17] Ma. Reconstruction of ancestral traits indicate that the ancestral characteristics of the family include monoecious plants, one seed, six stamens, and a smooth pericarp.
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Affiliation(s)
- Da-Juan Chen
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, China
| | - Jacob B. Landis
- School of Integrative Plant Science, Section of Plant Biology and the L.H. Bailey Hortorium, Cornell University, Ithaca, NY, United States
- BTI Computational Biology Center, Boyce Thompson Institute, Ithaca, NY, United States
| | - Hong-Xin Wang
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
- Zhai Mingguo Academician Work Station, Sanya University, Sanya, China
| | - Qing-Hui Sun
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
| | - Qiao Wang
- Hainan Shengda Modern Agriculture Development Co., Ltd., Qionghai, China
| | - Hua-Feng Wang
- Hainan Yazhou Bay Seed Laboratory, Sanya Nanfan Research Institute of Hainan University, Sanya, China
- Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou, China
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Francisconi AF, Cauz-Santos LA, Morales Marroquín JA, van den Berg C, Alves-Pereira A, Delmondes de Alencar L, Picanço-Rodrigues D, Zanello CA, Ferreira Costa M, Gomes Lopes MT, Veasey EA, Zucchi MI. Complete chloroplast genomes and phylogeny in three Euterpe palms (E. edulis, E. oleracea and E. precatoria) from different Brazilian biomes. PLoS One 2022; 17:e0266304. [PMID: 35901127 PMCID: PMC9333295 DOI: 10.1371/journal.pone.0266304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/28/2022] [Indexed: 11/29/2022] Open
Abstract
The Brazilian palm fruits and hearts-of-palm of Euterpe edulis, E. oleracea and E. precatoria are an important source for agro-industrial production, due to overexploitation, conservation strategies are required to maintain genetic diversity. Chloroplast genomes have conserved sequences, which are useful to explore evolutionary questions. Besides the plastid DNA, genome skimming allows the identification of other genomic resources, such as single nucleotide polymorphisms (SNPs), providing information about the genetic diversity of species. We sequenced the chloroplast genome and identified gene content in the three Euterpe species. We performed comparative analyses, described the polymorphisms among the chloroplast genome sequences (repeats, indels and SNPs) and performed a phylogenomic inference based on 55 palm species chloroplast genomes. Finally, using the remaining data from genome skimming, the nuclear and mitochondrial reads, we identified SNPs and estimated the genetic diversity among these Euterpe species. The Euterpe chloroplast genomes varied from 159,232 to 159,275 bp and presented a conserved quadripartite structure with high synteny with other palms. In a pairwise comparison, we found a greater number of insertions/deletions (indels = 93 and 103) and SNPs (284 and 254) between E. edulis/E. oleracea and E. edulis/E. precatoria when compared to E. oleracea/E. precatoria (58 indels and 114 SNPs). Also, the phylogeny indicated a closer relationship between E. oleracea/E. precatoria. The nuclear and mitochondrial genome analyses identified 1,077 SNPs and high divergence among species (FST = 0.77), especially between E. edulis and E. precatoria (FST = 0.86). These results showed that, despite the few structural differences among the chloroplast genomes of these Euterpe palms, a differentiation between E. edulis and the other Euterpe species can be identified by point mutations. This study not only brings new knowledge about the evolution of Euterpe chloroplast genomes, but also these new resources open the way for future phylogenomic inferences and comparative analyses within Arecaceae.
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Affiliation(s)
- Ana Flávia Francisconi
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
- * E-mail: (MIZ); (AFF)
| | | | | | - Cássio van den Berg
- Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brasil
- Departamento de Genética, Universidade de São Paulo, Piracicaba, São Paulo, Brasil
| | - Alessandro Alves-Pereira
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
| | - Luciano Delmondes de Alencar
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
| | | | - Cesar Augusto Zanello
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
| | - Marcones Ferreira Costa
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
- Campus Amílcar Ferreira Sobral, Universidade Federal do Piauí, Floriano, Piauí, Brasil
| | - Maria Teresa Gomes Lopes
- Departamento de Produção Animal e Vegetal, Universidade Federal do Amazonas, Manaus, Amazonas, Brasil
| | - Elizabeth Ann Veasey
- Departamento de Genética, Universidade de São Paulo, Piracicaba, São Paulo, Brasil
| | - Maria Imaculada Zucchi
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
- Agência Paulista de Tecnologia dos Agronegócios, Piracicaba, São Paulo, Brasil
- * E-mail: (MIZ); (AFF)
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Phukhamsakda C, Nilsson RH, Bhunjun CS, de Farias ARG, Sun YR, Wijesinghe SN, Raza M, Bao DF, Lu L, Tibpromma S, Dong W, Tennakoon DS, Tian XG, Xiong YR, Karunarathna SC, Cai L, Luo ZL, Wang Y, Manawasinghe IS, Camporesi E, Kirk PM, Promputtha I, Kuo CH, Su HY, Doilom M, Li Y, Fu YP, Hyde KD. The numbers of fungi: contributions from traditional taxonomic studies and challenges of metabarcoding. FUNGAL DIVERS 2022. [DOI: 10.1007/s13225-022-00502-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AbstractThe global diversity of fungi has been estimated using several different approaches. There is somewhere between 2–11 million estimated species, but the number of formally described taxa is around 150,000, a tiny fraction of the total. In this paper, we examine 12 ascomycete genera as case studies to establish trends in fungal species descriptions, and introduce new species in each genus. To highlight the importance of traditional morpho-molecular methods in publishing new species, we introduce novel taxa in 12 genera that are considered to have low species discovery. We discuss whether the species are likely to be rare or due to a lack of extensive sampling and classification. The genera are Apiospora, Bambusicola, Beltrania, Capronia, Distoseptispora, Endocalyx, Neocatenulostroma, Neodeightonia, Paraconiothyrium, Peroneutypa, Phaeoacremonium and Vanakripa. We discuss host-specificity in selected genera and compare the number of species epithets in each genus with the number of ITS (barcode) sequences deposited in GenBank and UNITE. We furthermore discuss the relationship between the divergence times of these genera with those of their hosts. We hypothesize whether there might be more species in these genera and discuss hosts and habitats that should be investigated for novel species discovery.
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de Santana Lopes A, Gomes Pacheco T, Nascimento da Silva O, do Nascimento Vieira L, Guerra MP, Pacca Luna Mattar E, de Baura VA, Balsanelli E, Maltempi de Souza E, de Oliveira Pedrosa F, Rogalski M. Plastid genome evolution in Amazonian açaí palm (Euterpe oleracea Mart.) and Atlantic forest açaí palm (Euterpe edulis Mart.). PLANT MOLECULAR BIOLOGY 2021; 105:559-574. [PMID: 33386578 DOI: 10.1007/s11103-020-01109-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
The plastomes of E. edulis and E. oleracea revealed several molecular markers useful for genetic studies in natural populations and indicate specific evolutionary features determined by vicariant speciation. Arecaceae is a large and diverse family occurring in tropical and subtropical ecosystems worldwide. E. oleracea is a hyperdominant species of the Amazon forest, while E. edulis is a keystone species of the Atlantic forest. It has reported that E. edulis arose from vicariant speciation after the emergence of the belt barrier of dry environment (Cerrado and Caatinga biomes) between Amazon and Atlantic forests, isolating the E. edulis in the Atlantic forest. We sequenced the complete plastomes of E. edulis and E. oleracea and compared them concerning plastome structure, SSRs, tandem repeats, SNPs, indels, hotspots of nucleotide polymorphism, codon Ka/Ks ratios and RNA editing sites aiming to investigate evolutionary traits possibly affected by distinct environments. Our analyses revealed 303 SNPs, 91 indels, and 82 polymorphic SSRs among both species. Curiously, the narrow correlation among localization of repetitive sequences and indels strongly suggests that replication slippage is involved in plastid DNA mutations in Euterpe. Moreover, most non-synonymous substitutions represent amino acid variants in E. edulis that evolved specifically or in a convergent manner across the palm phylogeny. Amino acid variants observed in several plastid proteins in E. edulis were also identified as positive signatures across palm phylogeny. The higher incidence of specific amino acid changes in plastid genes of E. edulis in comparison with E. oleracea probably configures adaptive genetic variations determined by vicariant speciation. Our data indicate that the environment generates a selective pressure on the plastome making it more adapted to specific conditions.
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Affiliation(s)
- Amanda de Santana Lopes
- Laboratório de Fisiologia Molecular de Plantas, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Túlio Gomes Pacheco
- Laboratório de Fisiologia Molecular de Plantas, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Odyone Nascimento da Silva
- Laboratório de Fisiologia Molecular de Plantas, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Leila do Nascimento Vieira
- Laboratório de Fisiologia do Desenvolvimento e Genética Vegetal, Programa de Pós-graduação em Recursos Genéticos Vegetais, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Miguel Pedro Guerra
- Laboratório de Fisiologia do Desenvolvimento e Genética Vegetal, Programa de Pós-graduação em Recursos Genéticos Vegetais, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | | | - Valter Antonio de Baura
- Departamento de Bioquímica e Biologia Molecular, Núcleo de Fixação Biológica de Nitrogênio, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Eduardo Balsanelli
- Departamento de Bioquímica e Biologia Molecular, Núcleo de Fixação Biológica de Nitrogênio, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Emanuel Maltempi de Souza
- Departamento de Bioquímica e Biologia Molecular, Núcleo de Fixação Biológica de Nitrogênio, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Fábio de Oliveira Pedrosa
- Departamento de Bioquímica e Biologia Molecular, Núcleo de Fixação Biológica de Nitrogênio, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Marcelo Rogalski
- Laboratório de Fisiologia Molecular de Plantas, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil.
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Le DT, Zhang YQ, Xu Y, Guo LX, Ruan ZP, Burgess KS, Ge XJ. The utility of DNA barcodes to confirm the identification of palm collections in botanical gardens. PLoS One 2020; 15:e0235569. [PMID: 32735584 PMCID: PMC7394517 DOI: 10.1371/journal.pone.0235569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/17/2020] [Indexed: 12/29/2022] Open
Abstract
The palm family (Arecaceae) is of high ecological and economic value, yet identification in the family remains a challenge for both taxonomists and horticulturalists. The family consists of approximately 2600 species across 181 genera and DNA barcoding may be a useful tool for species identification within the group. However, there have been few systematic evaluations of DNA barcodes for the palm family. In the present study, five DNA barcodes (rbcL, matK, trnH-psbA, ITS, ITS2) were evaluated for species identification ability across 669 samples representing 314 species and 100 genera in the Arecaceae, employing four analytical methods. The ITS gene region was found to not be a suitable barcode for the palm family, due in part, to low recovery rates and paralogous gene copies. Among the four analyses used, species resolution for ITS2 was much higher than that achieved with the plastid barcodes alone (rbcL, matK, trnH-psbA), and the barcode combination ITS2 + matK + rbcL gave the highest resolution among all single barcodes and their combinations, followed by ITS2 + matK. Among 669 palm samples analyzed, 110 samples (16.3%) were found to be misidentified. The 2992 DNA barcode sequences generated in this study greatly enriches the existing identification toolbox available to plant taxonomists that are interested in researching genetic relationships among palm taxa as well as for horticulturalists that need to confirm palm collections for botanical garden curation and horticultural applications. Our results indicate that the use of the ITS2 DNA barcode gene region provides a useful and cost-effective tool to confirm the identity of taxa in the Palm family.
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Affiliation(s)
- Duc-Thanh Le
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yu-Qu Zhang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Yong Xu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Li-Xiu Guo
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | | | - Kevin S. Burgess
- Department of Biology, Columbus State University, University System of Georgia, Columbus, Georgia, United States of America
| | - Xue-Jun Ge
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
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