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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 6
Affiliation:
[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
Total Affiliations: 6
Document type: Journal article
Source: PHYCOLOGICAL RESEARCH; v. 64, n. 1, p. 11-18, JAN 2016.
Web of Science Citations: 3
Abstract

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)

FAPESP's process: 12/12016-6 - Revision of the genera Sirodotia and Batrachospermum (Rhodophyta, Batrachospermales): sections Acarposporophytum, Aristata, Macrospora, Setacea, Turfosa and Virescentia
Grantee:Orlando Necchi Junior
Support type: Regular Research Grants
FAPESP's process: 13/06436-5 - Distribution, phylogeographic structure and genetic variation in populations of some species of Rhodophyta from the order Batrachospermales in Brazil.
Grantee:Monica Orlandi Paiano
Support type: Scholarships in Brazil - Doctorate