rbcL gene sequences reveal relationships among north-east Pacific species of Porphyra (Bangiales, Rhodophyta) and a new species, P. aestivalis

2003 ◽  
Vol 51 (3) ◽  
pp. 211-211 ◽  
Author(s):  
Sandra C. Lindstrom ◽  
Suzanne Fredericq
Crustaceana ◽  
2013 ◽  
Vol 86 (11) ◽  
pp. 1304-1315 ◽  
Author(s):  
Michel E. Hendrickx ◽  
Manuel Ayón-Parente

A new species ofMunidopsisWhiteaves, 1784 is described from the SW Gulf of California, western Mexico. The new species differs from all other known species ofMunidopsisof the East Pacific by the presence of numerous antero-posteriorly compressed processes on the carapace, many of which are truncate and with crenulated anterior margin, by its oval-shaped carapace, wider in its posterior half, and by the short, subrectangular, narrow rostrum with an upturned distal portion. It also differs from the East Pacific species and other species ofMunidopsisby the densely pitted carapace and appendages.


Phytotaxa ◽  
2018 ◽  
Vol 374 (1) ◽  
pp. 41
Author(s):  
MYUNG SOOK KIM ◽  
BYEONGSEOK KIM ◽  
MI YEON YANG ◽  
ROBERTA D’ARCHINO ◽  
JUDY E. SUTHERLAND ◽  
...  

The genus Streblocladia was described by early European collectors based on S. neglecta, a marine red alga from southern New Zealand currently treated as a taxonomic synonym of Streblocladia glomerulata. In New Zealand, Streblocladia includes two species and has always been considered distinct. To analyse the phylogenetic relationships of this genus with other Polysiphonia sensu lato, we conducted a molecular-assisted investigation using plastid rbcL gene sequences of recent collections of Streblocladia from New Zealand, as well as morphological observations. The molecular analyses indicated that Streblocladia species form a monophyletic clade sister to P. rhododactyla with strong support. The Streblocladia clade is clearly separated from other species of Polysiphonia sensu lato. Species of Streblocladia are characterized by sympodially branched, corticated main axes, the absence of vegetative trichoblasts, and spermatangial branches that are unilaterally arranged and replace the whole trichoblast. As a result, the New Zealand endemic Polysiphonia rhododactyla is transferred to the genus Streblocladia on the basis of genetic and morphological evidence and compared with the two other species from New Zealand, S. glomerulata and S. muelleriana.


Phytotaxa ◽  
2016 ◽  
Vol 283 (2) ◽  
pp. 143 ◽  
Author(s):  
KATEŘINA PROCHÁZKOVÁ ◽  
YVONNE NĚMCOVÁ ◽  
JIŘÍ NEUSTUPA

The trebouxiophycean genus Phyllosiphon contains unique green algae that thrive as endophytic parasites in the leaves of various members of the Araceae. The DNA sequences of the parasitic populations were originally acquired from infected leaves of subtropical Arisarum vulgare. However, several previous studies showed that the members of the Phyllosiphon clade also occur as free-living algae on various subaerial substrates across Europe. Phyllosiphon infection was also observed on the leaves of the temperate genus Arum, but no molecular data was available for these parasites. We recently found these parasites at a single sub-Mediterranean locality. These algae were genetically different from those previously obtained from Arisarum leaves on the basis of their 18S rDNA and rbcL gene sequences. In the present study, we describe this organism as a new species, Phyllosiphon ari. Phylogenetic differentiation of Phyllosiphon taxa, correlated with host specificity to different genera of the Araceae, suggests concerted host-pathogen co-evolution driving species diversification within this peculiar green algal lineage.


Zootaxa ◽  
2020 ◽  
Vol 4747 (3) ◽  
pp. 562-574
Author(s):  
HENRY M. REISWIG

A small collection of five Sponges made by E/V Nautilus on Cordell Bank National Marine Sanctuary, California, include the first report of the crinorhyzid Cladorhiza bathycrinoides Koltun off North America and a new species of Hexactinellida, Farrea. cordelli n. sp. The other three sponges in the collection are known to occur off the surrounding North-East Pacific coast, but new geographic or depth distributions are reported for these. 


Zootaxa ◽  
2018 ◽  
Vol 4504 (2) ◽  
pp. 253
Author(s):  
YAN-LI HU ◽  
BEI-XIN WANG ◽  
CHANG-HAI SUN

The adult male and larva of a new species in the genus Chimarra Stephens, Chimarra paramonorum n. sp., are described, diagnosed, and illustrated based on the specimens collected in Zhejiang Province, China. The larva and adult male were associated by mtCOI gene sequences. The male can be separated from C. monorum and C. thienemanni mainly by small preanal appendages and by wrinkled, hairless endotheca. The larva of the new species can be separated from other congeners by a combination of characters including the notch on the anterior margin of the frontoclypeus, the teeth of the mandibles, and the length of the seta-bearing process of each forecoxa. The larval description is the first for Chimarra in China. 


1994 ◽  
Vol 91 (12) ◽  
pp. 5730-5734 ◽  
Author(s):  
M. Hasebe ◽  
T. Omori ◽  
M. Nakazawa ◽  
T. Sano ◽  
M. Kato ◽  
...  

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