http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 조가윤 (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
조가윤,부성민,Raul, Aguilar-Rosas,Luis E., Aguilar-Rosas,Cho, Ga-Youn,Boo, Sung-Min 한국조류학회(藻類) 2006 ALGAE Vol.21 No.1
In this work we report the occurrence of Scytosiphon gracilis Kogame (Scytosiphonaceae, Phaeophyceae) on the Pacific coast of Mexico. This is the first report of S. gracilis outside its previously known distribution in the western North Pacific (Korea and Japan). The identification was based on a morphological revision and a comparison of the plastid-encoded RuBisCO spacer sequences determined for Korean and Mexican algal material. Thalli were collected from the intertidal zone of Saldamando Beach, Baja California, in January 2003. The vegetative structure, as well as habitat and geographic distribution of the species are described. Reproductive structures were not found in our specimens. The poor presence/absence of S. gracilis in previous floristic studies of the area could be due to its small size and low frequency.
-
Molecular phylogeny of the Family Scytosiphonaceae (Phaeophyceae)
조가윤,부성민,Jo, Ga-Youn,Kogame, Kazuhiro,Boo, Sung-Min The Korean Society of Phycology 2006 ALGAE Vol.21 No.2
Recent phylogenetic studies of scytosiphonacean brown algae show many conflicts with current classification. In order to clearly define the phylogenetic relationships of the family, we newly sequenced the photosystem I coding psaA gene (1488 base pairs) from 13 taxa (15 samples), of the family, and, for comparison, rbcL from four taxa. The psaA region has more informative sites (17.9%) than the rbcL (13.1%) and the number of nodes supported by over 50% bootstrap values is more in the psaA phylogeny (53 /57 nodes; 93%) than in the rbcL (47/63 nodes; 74.6%). The psaA phylogenies are basically congruent with the rbcL trees, recognizing two major groups in the monophyletic Scytosiphonaceae. The first group included Myelophycus, Petalonia, Scytosiphon, and elongate sack-shaped species of Colpomenia, primarily cold temperate elements with unilocular zoidangia on sporophytes. The second group, although not resolved, consisted of Hydroclathrus, Chnoospora, Rosenvingea, and ball-shaped Colpomenia, primarily warm-temperate taxa with both unilocular and plurilocular zoidangia on sporophytes. Chnoospora is not monophyletic, as was previously shown the paraphyly of Colpomenia, Petalonia, and Scytosiphon. Hydroclathrus clathratus from Korea and Japan was not monophyletic. Our studies show that gametophytic characters are the main source of conflict for the present taxonomy of the family. The psaA region is a useful tool for resolution of phylogenetic relationships within the Scytosiphonaceae.
-
lastid rbcL Gene Phylogeny of the Genus Spirogyra (Chlorophyta, Zygnemataceae) from Korea
김지환,김영환,조가윤,부성민 한국유전학회 2006 Genes & Genomics Vol.28 No.3
Spirogyra is a conjugating filamentous zygnematacean genus that is widely distributed worldwide with more than 400 species. However, taxonomy and phylogenetic relationships within the genus remain unclear. We determined the sequence of rbcL from 29 isolates of Spirogyra and putative relatives from Korea and 5 isolates from UTEX to identify the species from Korea and infer their relationships. A total of 54 rbcL sequence data including previously published 20 sequences were analyzed using maximum parsimony, maximum likelihood, and Bayesian inference methods. All the three methods produced identical topology in the monophyly of Spirogyra containing Sirogonium and the formation of six clades within the genus. Of these, Korean Spirogyra was separated into four clades. They are morphologically supported, although the intercladal relationships were not resolved. Variations of the rbcL sequences within species were absent or up to 0.1%. Via this study, twelve species of the genus were recognized in Korea; S. africana, S. decimina, S. distenta, S. dubia, S. ellipsospora, S. weberi, S. varians, S. variformis and four unidentified species. This is the first report on the phylogenetic relationships within Spirogyra from Asian region based on molecular data.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
