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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Organization of plastid genomes in the freshwater red algal order Batrachospermales (Rhodophyta)

Texto completo
Autor(es):
Paiano, Monica Orlandi [1] ; Del Cortona, Andrea [2] ; Costa, Joana F. [3] ; Liu, Shao-Lun [4] ; Verbruggen, Heroen [3] ; De Clerck, Olivier [2] ; Necchi, Jr., Orlando [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ, Zool & Bot Dept, BR-15054000 Sao Jose Do Rio Preto - Brazil
[2] Univ Ghent, Phycol Res Grp, Krijgslaan 281-S8, B-9000 Ghent - Belgium
[3] Univ Melbourne, Sch BioSci, Melbourne, Vic 3010 - Australia
[4] Tunghai Univ, Dept Life Sci, Taichung 40704 - Taiwan
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF PHYCOLOGY; v. 54, n. 1, p. 25-33, FEB 2018.
Citações Web of Science: 4
Resumo

Little is known about genome organization in members of the order Batrachospermales, and the infra-ordinal relationship remains unresolved. Plastid (cp) genomes of seven members of the freshwater red algal order Batrachospermales were sequenced, with the following aims: (i) to describe the characteristics of cp genomes and compare these with other red algal groups; (ii) to infer the phylogenetic relationships among these members to better understand the infra-ordinal classification. Cp genomes of Batrachospermales are large, with several cases of gene loss, they are gene-dense (high gene content for the genome size and short intergenic regions) and have highly conserved gene order. Phylogenetic analyses based on concatenated nucleotide genome data roughly supports the current taxonomic system for the order. Comparative analyses confirm data for members of the class Florideophyceae that cp genomes in Batrachospermales is highly conserved, with little variation in gene composition. However, relevant new features were revealed in our study: genome sizes in members of Batrachospermales are close to the lowest values reported for Florideophyceae; differences in cp genome size within the order are large in comparison with other orders (Ceramiales, Gelidiales, Gracilariales, Hildenbrandiales, and Nemaliales); and members of Batrachospermales have the lowest number of protein-coding genes among the Florideophyceae. In terms of gene loss, apcF, which encodes the allophycocyanin beta subunit, is absent in all sequenced taxa of Batrachospermales. We reinforce that the interordinal relationships between the freshwater orders Batrachospermales and Thoreales within the Nemaliophycidae is not well resolved due to limited taxon sampling. (AU)

Processo FAPESP: 13/06436-5 - Distribuição, estrutura filogeográfica e variação genética de populações de algumas espécies de Rhodophyta da ordem Batrachospermales,no Brasil
Beneficiário:Monica Orlandi Paiano
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 12/12016-6 - Revisão dos gêneros Sirodotia e Batrachospermum (Rhodophyta, Batrachospermales): seções Acarposporophytum, Aristata, Macrospora, setacea, Turfosa e Virescentia
Beneficiário:Orlando Necchi Junior
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 15/01360-6 - Distribution, phylogeographic structure and genetic variation in Brazilian freshwater red ALGAE (Batrachospermales - Rhodophyta)
Beneficiário:Monica Orlandi Paiano
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Processo FAPESP: 16/07808-1 - Sistemática da ordem Batrachospermales com ênfase nos gêneros Sirodotia e Batrachospermum (Rhodophyta)
Beneficiário:Orlando Necchi Junior
Linha de fomento: Auxílio à Pesquisa - Regular