• ALGAE
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• 제26권1호
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• pp.33-40
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• 2011

Porphyroglossum is the last one of nine genera within the family Gelidiaceae that has yet to be analyzed by molecular markers. We analyzed rbcL and cox1 genes from P. zollingeri specimens collected near the type locality in Indonesia and compared them with other gelidioid algae. Thalli are cartilaginous, complanate, and up to 15 cm high. Abundant rhizoidal filaments are concentrated in the medullary layer. Tetrasporangial sori are on small, determinate ramuli. In all gene analyses, P. zollingeri consistently nested within Gelidium. The sister relationship of P. zollingeri to G. floridanum was well resolved. Because Gelidium has priority over Porphyroglossum, a new combination is proposed, viz. Gelidium zollingeri. Network analysis of the four cox1 haplotypes revealed many missing haplotypes, indicating high genetic diversity in the species.

• Animal Systematics, Evolution and Diversity
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• 제30권1호
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• pp.33-38
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• 2014

Caeneressa diaphana muirheadi (Felder) and Caeneressa brithyris (Druce) have been recorded for the first time from India. Further, a new combination viz. Caeneressa melaena (Walker) comb. nov., has also been proposed on the basis of external genitalic features. With these records, genus Caeneressa will be represented by five species from India, Caeneressa diaphana (Kollar), Caeneressa diaphana muirheadi (Felder), Caeneressa brithyris (Druce), Caeneressa melaena (Hampson) and Caeneressa swinhoei (Leech). The studied material was collected from North-Eastern states of India. Caeneressa brithyris (Druce) was collected near riverside at low altitude whereas the other two species were collected at high altitude.

• 한국응용곤충학회지
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• 제39권4호
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• pp.239-244
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• 2000

지난 2년간(1999~2000)의 장백산 곤충조사결과 뿔나방科의 20종이 채집 확인되었다. Anacampsis popullela를 제외한 전종은 모두 장백산에서 처음 확인되는 종이었으며, Scrobipalpa atriplicella (Fisher and Roslerstamm)와 Anarsia lineatella (Zeller)는 한반도에서 그 분포가 알려지지 않은 종이다. Carpatolechia dehania (Park, 1993)는 Pseudotelphusa 속에서 새로운 속명으로 재조합되었다.

• ALGAE
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• 제36권3호
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• pp.165-174
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• 2021

Radicilingua Papenfuss and Calonitophyllum Aregood are two small genera of the family Delesseriaceae that consist of only three and one taxonomically accepted species, respectively. The type species of these genera, Radicilingua thysanorhizans from England and Calonitophyllum medium from the Americas, are morphologically very similar, with the only recognized differences being vein size and procarp development. To date, only other two species were recognized inside the genus Radicilingua: R. adriatica and R. reptans. In this study, we analysed specimens of Radicilingua collected in the Adriatic and Ionian Sea (Mediterranean), including a syntype locality of R. adriatica (Trieste, northern Adriatic Sea), alongside material from near the type locality of R. thysanorhizans (Torpoint, Cornwall, UK). The sequences of the rbcL-5P gene fragment here produced represent the first molecular data available for the genus Radicilingua. Phylogenetic reconstruction showed that the specimens from the Adriatic and Ionian Seas were genetically distinct from the Atlantic R. thysanorhizans, even if morphologically overlapping with this species. A detailed morphological description of the Mediterranean specimens, together with an accurate literature search, suggested that they were distinct also from R. adriatica and R. reptans. For these reasons, a new species was here described to encompass the Mediterranean specimens investigated in this study: R. mediterranea Wolf, Sciuto & Sfriso. Moreover, in the rbcL-5P tree, sequences of the genera Radicilingua and Calonitophyllum grouped in a well-supported clade, distinct from the other genera of the subfamily Nitophylloideae, leading us to propose that Calonitophyllum medium should be transferred to Radicilingua.

• ALGAE
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• 제38권4호
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• pp.241-252
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• 2023

The genera Carolibrandtia and Chlorella have been described as small green algae with spherical cell shapes that inhabit various environments. Species of these genera are often difficult to identify because of their simple morphology and high phenotypic plasticity. We investigated two small coccoid strains from Antarctica based on morphology, molecular phylogeny by two alignment methods which have been applied to previous phylogenetic studies of the genus Chlorella, and comparison of the secondary structures of nuclear small subunit (SSU) and internal transcribed spacer (ITS) rDNA sequences. Light microscopy of two strains revealed spherical cells containing chloroplasts with pyrenoids, and the morphological characteristics of the strains were nearly identical to those of other Chlorella species. However, based on the phylogenetic analyses of nuclear SSU and ITS rDNA sequences, it was determined that the Antarctic microalgal strains belonged to two genera, as the Chlorella and Carolibrandtia. In addition, the secondary structures of the SSU and ITS2 sequences were analyzed to detect compensatory base changes (CBCs) that were used to identify and describe the two strains. A unique CBC in the SSU rDNA gene was decisive for distinguishing strain CCAP 211/45. The ITS2 rDNA sequences for each strain were compared to those obtained previously from other closely related species. Following the comparison of morphological and molecular characteristics, we propose KSF0092 as a new species, Chlorella terrestris sp. nov., and the reassignment of the strain Chlorella antarctica CCAP 211/45 into Carolibrandtia antarctica comb. nov.

• ALGAE
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• 제19권3호
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• pp.175-190
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• 2004

The morphological and molecular characteristics of Pachydictyon coriaceum (Holmes) Okamura (1899) are described. Plants are collected from Korea all year round and have maximum height from August to September. The monthly variability of thallus growth is in the way with that of the seawater temperature. Two types of thallus structures, thick cortical layer tallus type and thin cortical cell layer type, are distinguished according to growing seasons. The habit of Korean plants is also classified into two thallus types, slender type and wide type, based on the length and the width of internodes, but this distinction between two types is not supported by either anatomical or molecular characteristics. P. coriaceum shares typical morphology in branching pattern and morphogenetic processes with the other species of Dictyota: 1) multi-cellular cortical and medullar layer in the partial of thallus, 2) same development of thallus from apical meristem cell, and 3) sub-lineage within Dictyota species lineage in rbcL, psaA and psbA gene sequences analyses. These characteristics lead to propose the new combination of Dictyota coriacea (Homes) I.K. Hwang, H.S. Kim et W.J. Lee, comb. nov.

• Journal of Microbiology and Biotechnology
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• 제27권1호
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• pp.149-154
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• 2017

Transfer of Micropolyspora internatus into the genus Saccharomonospora as "Saccharomonospora internatus comb. nov." was proposed by Kurup and Greiner-Mai, but the nomenclatural change has not been validly published. Although the inclusion of M. internatus in the genus Saccharomonospora has not being established, the synonymy of "Saccharomonospora internatus" and S. viridis was proposed by Greiner-Mai. A number of recent publications regarded M. internatus as a synonym of S. viridis, but the name M. internatus is still used in some cases instead of S. viridis. This is because of the complicated history of M. internatus and S. viridis, but it is different from the generally accepted view of prokaryotic taxonomy. To clearly verify the synonymy of M. internatus and S. viridis, a literature review and experimental verification were conducted in this study. Based on the genomic and phenotypic characteristics obtained in this study, the synonymy of the two species was obvious. The emended description of S. viridis is given.

• ALGAE
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• 제27권3호
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• pp.155-173
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• 2012

Evidence from molecular data supports the close taxonomic relationship of the two North Pacific species Delesseria decipiens and D. serrulata with Cumathamnion, up to now a monotypic genus known only from northern California, rather than with D. sanguinea, the type of the genus Delesseria and known only from the northeastern North Atlantic. The transfers of D. decipiens and D. serrulata into Cumathamnion are effected. Molecular data also reveal that what has passed as Membranoptera alata in the northwestern North Atlantic is distinct at the species level from northeastern North Atlantic (European) material; M. alata has a type locality in England. Multiple collections of Membranoptera and Pantoneura fabriciana on the North American coast of the North Atlantic prove to be identical for the three markers that have been sequenced, and the name Membranoptera fabriciana (Lyngbye) comb. nov. is proposed for them. Many collections of Membranoptera from the northeastern North Pacific (predominantly British Columbia), although representing the morphologies of several species that have been previously recognized, are genetically assignable to a single group for which the oldest name applicable is M. platyphylla.

• 식물분류학회지
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• 제46권2호
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• pp.175-186
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• 2016

더위지기 및 근연분류군은 분류학적 위치 및 학명에 대하여 많은 이견이 있어왔다. 이에 본 연구는더위지기 및 근연분류군인 털산쑥, 흰산쑥의 외부형태학적 연구를 바탕으로 정확한 학명을 부여하고 분류학적 위치를 재검토하기 위하여 실시되었다. 원기재와 기준표본을 비교 및 분석한 결과, 털산쑥(A. freyniana f. discolor)과 흰산쑥(A. freyniana f. vestita)은 잎에서 털의 분포 양상, 지리적 분포, 체세포염색체 수 및 화분의 자상돌기 기부의 연결 유무 등의 특징에 의해 A. sacrorum var. sacrorum와 A. sacrorum var. incana으로 각각 이명 처리하였으며, A. gmelinii의 학명으로 잘못 사용되어온 더위지기(A. iwayomogi)의 학명은 A. sacrorum그룹과의 형태학적 유사성을 바탕으로 신조합명인 A. sacrorum var. iwayomogi (Kitam.) M. S. Park & G. Y. Chung으로 처리하였다. 또한, 이들의 기재, 도해 및 검색표를 제시하였다.

• ALGAE
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• 제33권2호
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• pp.157-166
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• 2018

Cryptic species complexes are increasingly recognized in phycological research, obscuring taxonomy and raising questions about factors influencing speciation. A recent exploration of kelp genetic diversity on Haida Gwaii, British Columbia revealed the existence of a new species, Saccharina druehlii, which is cryptic with Saccharina sessilis. This suggests that molecular investigations further north may be required to elucidate the taxonomy and evolutionary history of this lineage. Although, for several decades, S. sessilis was considered a single highly variable species, its taxonomy has been far from straightforward. In particular, Hedophyllum subsessile (Areschoug) Setchell is now recognized as a synonym of S. sessilis in North America, but as a growth form of Saccharina bongardiana in Far East Russia. To resolve this taxonomic confusion, we sequenced mitochondrial (CO1-5P) and nuclear (internal transcribed spacer) markers of S. sessilis populations from the Aleutian Islands, Alaska, USA. Interestingly, none of our sequences matched S. sessilis sensu stricto. Instead, CO1-5P sequences from populations in the central and eastern Aleutians matched exactly S. druehlii with increasing sequence divergence occurring westward. Samples from Attu, the western-most island, composed a genetic group that clearly represents Kjellman's concept of Hafgygia bongardiana f. subsessilis and is distinct enough from S. druehlii and S. sessilis to potentially constitute a distinct species. Therefore, Saccharina subsessilis comb. nov. is proposed for this entity. Our results suggest the existence of a species complex at the crown node of S. sessilis and thus further investigation of Saccharina in Alaskan waters should be conducted to reconstruct the evolutionary history of this fascinating lineage.