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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.)

Phylogeny and morphology of the freshwater red alga Nemalionopsis shawii (Rhodophyta, Thoreales) from Nepal

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Autor(es):
Necchi, Jr., Orlando [1] ; West, John A. [2] ; Rai, Shiva K. [3] ; Ganesan, E. K. [4, 5] ; Rossignolo, Natalia L. [1] ; de Goer, Susan L. [6]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ, Zool & Bot Dept, Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Melbourne, Sch Biosci 2, Parkville, Vic 3052 - Australia
[3] Tribhuvan Univ, Phys Res Lab, Dept Bot, Post Grad Campus, Biratnagar - Nepal
[4] Univ Oriente, Inst Oceanog, Cumana - Venezuela
[5] 3-A Srinivas Terrace, 52, 2 Main Rd, Madras 600020, Tamil Nadu - India
[6] 11 Rue Moguerou, Roscoff - France
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: PHYCOLOGICAL RESEARCH; v. 64, n. 1, p. 11-18, JAN 2016.
Citações Web of Science: 3
Resumo

Phylogenetic relationships and morphological characters are presented for a population of Nemalionopsis shawii Skuja collected from Nepal. Molecular data (sequences of rbcL and cox1) were generated and morphological characters were described in detail. The rbcL sequence analyses showed that specimens from Nepal are most similar to N.shawii from Indonesia and Japan and that these entities form a clade with high support (>95% bootstrap and 0.95 posterior probability). The cox1 barcode sequence, however, only had 90.9-91.9% identity with specimens of N.shawii from Hawaii. The rbcL sequence of the specimen from Nepal was positioned in a clade having sequence identity of 99.3-99.7% with three samples: N.shawii from Indonesia and two from Japan identified as N.tortuosa. The comparison of morphological characters of Nemalionopsis from Nepal allowed unequivocal identification with N.shawii. Identifications from previous studies using molecular data were mistaken since most reports of N.shawii are actually of N.tortuosa or vice-versa. This confusion of names presumably occurred because most specimens previously sequenced were from culture collections or from Chantransia' stages. Small tufts of Chantransia' stage were observed growing epiphytically on gametophytes and on the basal system. Carpogonia and spermatangia were fully described in specimens from Nepal. Monosporangia were not observed, whereas carposporangia were unequivocally described for the first time in the genus. An unusual flat strap-like basal system was observed, interpreted as an additional mode of maintenance in nature under unfavorable environmental conditions. (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