Preliminary phylogenetic relationships of the genus Brotherella and its allied genera (Hypnales, Musci) based on chloroplast rbcL sequence data.

Accession number;00A0795866
Title;Preliminary phylogenetic relationships of the genus Brotherella and its allied genera (Hypnales, Musci) based on chloroplast rbcL sequence data.
Author; TSUBOTA H (Hiroshima Univ., Hiroshima, Jpn) NAKAO N (Hiroshima Univ., Hiroshima, Jpn) YAMAGUCHI T (Hiroshima Univ., Hiroshima, Jpn) ()
Journal Title;J Hattori Bot Lab
Journal Code:Y0255A
ISSN:0073-0912
VOL.;NO.88;PAGE.79-99(2000)
Figure&Table&Reference;FIG.4, TBL.4, REF.50
Pub. Country;Japan
Language;English
Abstract;Distinction between the Hypnaceae and the Sematophyllaceae is controversial. Taxonomic position of the genera Brotherella, Wijkia and its allies is still fluctuating and has been repeatedly discussed. A phylogenetic study was carried out to investigate the phylogenetic position of the genera Brotherella, Wijkia and their allies, based on phylogenetic analyses of the chloroplast ribulose 1,5-bisphosphate carboxylase/oxygenase large subunit (rbcL) gene data. Chloroplast rbcL genes from eight mosses were newly sequenced. Phylogenetic trees were constructed by neighbor-joining (NJ), minimum-evolution (ME), maximum-parsimony (MP) and maximum-likelihood (ML) methods for 30 rbcL sequences. The results suggest that the genus Brotherella and its allies (Pylaisiadelpha tenuirostris, Wijkia hornschuchii and Heterophyllium nematosum) are monophyletic with high boot-strap support. Hypnum tristo-viride is also included in the Brotherella clade. The Sematophyllaceae (sensu Seki 1968) are paraphyletic to the Brotherella clade. These results support the conclusion that the Sematophyllaceae (sensu present), including Brotherella and its allies, are monophyletic. The present study also suggests that the genus Entodon should be placed in a clade sister to the Sematophyllaceae (sensu present). The results show the need to reconsider the familial circumscription of the Hypnaceae and Sematophyllaceae. (author abst.)
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