Abstract
Free-living conchocelis ofPorphyra yezoensis Ueda (Bangiales, Rhodophyta) were treated with60Co-γ rays of different doses (ranging from 100 Gy to 1000 Gy) to induce mutation. Most of the conchocelis maintained the capability of penetrating into shells, growing and forming colonies in shells, but their vitality was seriously impaired by the irradiation of γ-rays. A few conchocelis pigments were mutagenized directly into different color pigment mutants whose progeny-conchospores and foliose thalli had the same colors. However, some irradiated conchocelis did not show the change in color at the conchocelis stage. The pigment mutation could be observed only after the conchospores of these conchocelis had germinated into young foliose thalli. Irradiation of low dose (100 Gy) promoted the growth of thallus and many with altered morphology were observed. Conchospores of the irradiated conchocelis attached to the culture nets were cultured in the sea, and growth of these progenies was observed and measured.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Aruga, Y., 1974. Color of cultivatedPorphyra.Watakushitachi no Nori Kenkyu 23: 1–14. (in Japanese)
Cheng, Z. K., Li, X., Yu, H. X. et al., 1991. A study of effect of irradiation on somaclonal variation of rice I. The relationship between dosage and culture capacity and the variation of agronomic traits. Plant somaclonal variation and breeding (Chen Yin, ed.), Jiangsu Science and Technology Publishing House. p. 216–226. (in Chinese with English abstract)
Dai, J. X., Zhang, Q. Q., Bao, Z. M. et al., 1990. Studies on the pure culture, mutagenization and interspecific fusion ofPorphyra protoplasts.Oceanologia et Limnologia Sinica 21(3): 293–296. (in Chinese with English abstract)
Gu, M. H., Cheng, Z. K., Lin, X. et al., 1991. A study of effect of irradiation on somaclonal variation of rice I. Cytological variation of regenerated omaclones. Plant somaclonal variation and breeding (Chen Yin, ed.), Jiangsu Science and Technology Publishing House. p. 227–236. (in Chinese with English abstract)
Katayama, K., 1983. Studies of mutations ofPorphyra-I: Employment of some chemical mutagens.Bull. Fish. Res. Stn., Okayama Pref. 57: 51–56.
Katayama, K., 1984. Studies of mutations ofPorphyra-I: Mutations induced by several chemical mutagens.Bull. Fish. Res. Stn., Okayama Pref. 58: 43–49.
Mitman, G. G., Van der Meer, J. P., 1994. Meiosis, blade development, and sex determination inPorphyra purpurea (Rhodophyta).J. Phycol. 30: 147–159.
Miura, A. 1978. Color variants and heredity of color inPorphyra.Iden 32: 11–16. (in Japanese)
Miura, A., 1985. Genetic analysis of the variant color types of light red, light green and light yellow phenotypes ofPorphyra yezoensis (Rhodophyta, Bangiaceae).In: H. Hara (ed.). Origin and Evolution of Diversity in Plants and Communities. Academia Scientific Book Inc., Tokyo, p. 270–284.
Miura, A., Aruga Y., Fuseya M., 1974. Thremmatological studies of the cultivatedPorphyra II. Effect of selection on the form and color of foliose thalli inPorphyra yezoensis formnarawaensis. Nippon Suisan Gakkai 1974 Spring Annual Meeting Abstract. p. 93. (in Japanese)
Miura, A., Shin, J. A., 1989. Crossbreeding in cultivars ofPorphyra yezoensis (Bangiales, Rhodophyta)—A preliminary report.Korean J. Phycol. 4: 207–211.
Niwa, K., Miura, A., Shin, J. A., 1993. Characterization and genetic analysis of the violet type pigmentation mutant ofPorphyra yezoensis Ueda (Bangiales, Rhodophyta).Korean J. Phycol. 8(2): 217–230.
Shin, J. A., 1992. Thremmatological studies on the cultivatedPorphyra yezoensis Ueda. Ph. D. Thesis, Tokoy Univ. of Fisheries. 74 p. (in Japanese)
Van der Meer, J. P., 1977. Genetics ofGracilaria sp. (Rhodophyceae, Gigarinales). II. The life history and genetic implications of cytokinetic failure during tetraspore formation.Phycologia 16: 367–371.
Van der Meer, J. P., Todd, E. R., 1977. Genetics ofGracilaria sp. (Rhodophyceae, Gigartinales). IV. Mitotic recombination and its relationship to mixed phases in the life history.Can. J. Bot. 55: 2810–2817.
Van der Meer, J. P., Tokk, E. R., 1980. The life history ofPalmaria palmata in culture. A new type for the Rhodophyta.Can J. Bot. 58: 1250–1256.
Xu, P., 1996. Induction and genetical character of pigment mutants inPorphyra. (Ph. D. dissertation). (in Chinese with English abstract)
Xu, P., Fei, X. G., Zhu, J. Y., 1994. Induction of pigment mutants in red algaePorphyra. Abstracts 5th Int. Phycol. Congr., June–July 1994, Qingdao, China. 45p.
Yan, X. H., 1992. Effects of UV irradiation on the development and variations of protoplast progenies inPorphyra yezoensis.J. Shanghai Fish. Univ. 1(1/2): 71–78. (in Chinese with English abstract)
Yan, X. H., 1993. Studies on color type variants from mutagenized protoplasts ofPorphyra haitanensis Chang et Zheng andP. yezoensis Ueda (Rhodophyta).Chin. J. Oceanol. Limmol. 11: 235–244.
Yan, X. H., Aruga, Y., 1997. Induction of pigmentation mutants by treatment of monospores germlings with NNG inPorphyra yezoensis Ueda (Bangiales, Rhodophyta).Algae (fomerly Korean J. Phycol. 12(1): 39–52.
Zheng, Q. C., Zhu, Y. L., Chen, W. H. et al., 1991. The effect of γ-radiation on the somaclonal variation in wheat. Plant somaclonal variation and breeding (Chen Yin ed.), Jiangsu Science and Technology Publishing House. p. 209–215. (in Chinese with English abstract)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Su-juan, W., Yuan-zhu, Z., Ling-bo, M. et al. Gamma-rays induction of mutation in conchocelis ofPorphyra yezoensis . Chin. J. Ocean. Limnol. 18, 47–53 (2000). https://doi.org/10.1007/BF02842541
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02842541