ISSN : 2287-8327
A prostrate species of Codium (Bryopsidales, Chlorophyta) was collected from Daejin on the eastern coast of Korea. This alga is morphologically characterized by a prostrate, adherent or pulvinate, dark green thallus that is tightly attached to substratum. The utricles are strongly grouped and cylindrical to slightly clavate. Their apex is rounded to capitated, and it frequently has an alveolate ornament. Hair scars are found in the upper portion of the utricle. The gametangia grow on a short pedicel in the upper part of the utricle. In the phylogenetic tree based on molecular data, this alga is placed in the same clade as C. mozambiquense in UPGMA analysis, and nests in a sister clade of C. lucasii subsp. capense and C. mozambiquense in ML and NJ analyses. However, the genetic distance between the sequences of the Korean alga and the two species is 1.3–1.9%, while that between the Korean alga and C. lucasii from Japan is 1.1% within intraspecific range. The divergence value between the Korean alga and C. lucasii from the type locality (Australia) is 2.7% considered to be interspecific range. As based on this genetic divergence value, the Korean alga together with Japanese C. lucasii can be separated from genuine C. lucasii from the type locality. However, the Korean alga is identified as C. lucasii until those entities are morphologically characterized in species level. This is the first record of C. lucasii in Korea.
Dawson EY. 1950. Note on Pacific coast marine algae, IV. Am J Bot 37: 149-158.
González AV, Chacana ME, Silva PC. 2012. Codium bernabei sp. nov. (Bryopsidales, Chlorophyta), a coalescing green seaweed from the coast of Chile. Phycologia 51: 666-671.
Guiry MD, Guiry GM. 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org/. Accessed 08 September 2015.
Hall TA. 1999. BioEdit: a user-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucl Acids Symp Ser 41: 95-98.
Israel A, Einav R, Silva PC, Paz G, Chacana ME, Douek J. 2010. First report of the seaweed Codium parvulum (Chlorophyta) in Mediterranean waters: recent blooms on the northern shores of Israel. Phycologia 49: 107˗112.
Kim GH, Klochkova TA. 2010. Bryopsidales. In: Algal Flora of Korea. Volume 1, Number 1. Chlorophyta: Ulvophyceae: Ulotrichales, Ulvales, Cladophorales, Bryopsidales. Marine Green Algae (Bae EH, Kim HS, Kwon CJ, Hwang IK, Kim GH, Klochkova TA, eds). National Institute of Biological Resources, Incheon, pp 157-209.
Kim HS, Boo SM, Lee IK, Sohn CH. 2013. National List of Species of Korea. Marine Algae, Jeonghaengsa, Seoul. (in Korean)
Lee HW, Kim MS. 2015. Species delimitation in the green algal genus Codium (Bryopsidales) from Korea using DNA barcoding. Acta Oceanol Sin 34: 114-124.
Lucas AHS. 1935. The marine algae of Lord Howe Island. Proc Linn Soc NSW 60: 194-232.
Oh YS, Lee YP, Lee IK. 1987. A taxonomic study on the genus Codium, Chlorophyta, in Cheju Island. Algae 2: 61-72.
Oliveira-Carvalho MF, Oliveira MC, Barreto-Pereira SM, Verbruggen H. 2012. Phylogenetic analysis of Codium species from Brazil, with the description of the new species C. pernambucensis (Bryopsidales, Chlorophyta). Eur J Phycol 47: 355-365.
Schmidt OC. 1923. Beiträge zur Kenntnis der Gattung Codium Stackhouse. Bibl Bot 91: 1-68.
Shimada S, Hiraoka M, Serisawa Y, Horiguchi T. 2004. Phylogenetic studies in the genus Codium (Chlorophyta) from Japan. Jpn J Phycol 52:137-141.
Shimada S, Ebata H, Horiguchi T, Kurihara A, Tanaka J. 2007. Molecular phylogenetic and morphological analyses of prostrate Codium (Chlorophyta) in Japan. J Jpn Bot 82: 190-204.
Silva PC. 1954. Phylogenetic significance of anatomical differences in Codium. Proc Eighth Int Bot Congr, pp 102-103.
Silva PC. 1962. Comparison of algal floristic patterns in the Pacific with those in the Atlantic and Indian Oceans, with special reference to Codium. Proc Ninth Pacific Sci Congr 4: 201-216.
Silva PC, Womersley HBS. 1956. The genus Codium (Chlorophyta) in southern Australia. Aust J Bot 4: 261-289.
Verbruggen H, Costa JF. 2015. Molecular survey of Codium species diversity in southern Madagascar. Cryptogam Algol 36: 171-187.
Verbruggen H, Leliaert F, Maggs CA, Shimada S, Schils T, Provan J, Booth D, Murphy S, De Clerck O, Littler DS, Littler MM, Coppejans E. 2007. Species boundaries and phylogenetic relationships within the green algal genus Codium (Bryopsidales) based on plastid DNA sequences. Mol Phylogenet Evol 44: 240-254.
Verbruggen H, Pauly K, De Clerck O. 2012. The new species Codium recurvatum from Tanzania. Eur J Phycol 47: 216-222.