Abstract
Karyotype analyses were conducted onCunninghamia konishii, Cunninghamia lanceolata, andTaiwania cryptomerioides, all members ofTaxodiaceae. The somatic chromosome number was found to be 2n = 2x = 22 in all species which concurrs with previous reports. The karyotypes are generally asymmetrical with the smaller chromosomes being more submedian than the larger ones. Chromosomes with unusual or specific structures, thought to be associated with the nucleolar organizing region, were found in each species.Cunninghamia species have a marker chromosome pair with an unusually long secondary constriction.Taiwania has an unusually long kinetochore region present in a submedian chromosome pair.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bose, S., 1956: Aberrations in the nucleolar chromosome of inbred rye. — Hereditas42, 263–296.
, 1957: Aberrations in the nucleolar chromosome of inbred rye. II. Size variation in inbred lines and population plants. — Hereditas43, 621–643.
, 1958: Aberrations in the nucleolar chromosome of inbred rye. III. Size variation in inbred lines in relation to vigor. — Hereditas44, 257–279.
Dallimore, W., Jackson, A. B., Harrison, S. G., 1966: A handbook ofConiferae andGinkgoaceae. — St. Martin's Press, New York.
Eckenwalder, J. E., 1976a: Re-evaluation ofCupressaceae andTaxodiaceae: a proposed merger. — Madroño23, 237–256.
, 1976b: Comments on “A new classification of the conifers”. — Taxon25, 337–339.
Hair, J. B., 1968: The chromosomes of theCupressaceae I.Tetraclineae andActinostrobeae (Callitroideae). — New Zeal. J. Bot.6, 277–284.
Hida, M., 1962: The systematic position ofMetasequoia. — Bot. Mag.75, 316–326 (Japanese with English summary).
Hirayoshi, I., Nakamura, Y., 1942: Nogakubu Koensyhu-Kyoto Univ.2, 90 (vide Khoshoo 1961).
Hunziker, J. H., 1961: Estudios cromosomicos enCupressus yLibocedrus. (Cupressaceae). — Rev. Invest. Agri.15, 169–185 (Spanish with English summary).
Khoshoo, T. N., 1961: Chromosome numbers in gymnosperms. — Silvae Genetica10, 1–9.
, 1963: The chromosomes and relationships ofWelwitschia mirabilis. — Chromosoma14, 522–533.
Kuo, S.-R., Wang, T.-T., Huang, T.-C., 1972: Karyotype analysis of some Formosan gymnosperms. — Taiwania17, 66–80.
Kurita, M., 1953: A study of the chromosomes inNothoscordum fragrans (Vent)Kunth. — Mem. Ehime Univ.1, 55–63.
, 1960: Nucleolar chromosome with a long centromere. — Rep. Biol. Inst. Ehime Univ.9, 1–8.
LaCour, L. F., 1950: Compound constrictions. — Heredity4, 245–246.
Levan, A., Fredga, K., Sandberg, A. A., 1964: Nomenclature for centromeric position on chromosomes. — Hereditas52, 201–220.
Matsumoto, K., 1933: Über die Chromosomenzahl vonCryptomeria japonica D. Don undTaiwania cryptomerioides Hayata. — Bot. Zool. Tokyo1, 1751–1756 (Japanese with German summary).
Matsuura, H., 1941: Chromosome studies onTrillium kamtschaticum Pall. XIII. The structure and behaviour of the kinetochores. — Cytologia11, 369–379.
Mehra, P. N., Khoshoo, T. N., 1956: Cytology of conifers. I. — Indian J. Genet. Plant Breed.54, 165–180.
Sato, D., 1942: Karyotype alteration and phylogeny, V. New types of SAT-chromosomes inNothoscordum andNerine. — Cytologia12, 170–178.
Saylor, L. C., 1961: A karyotypic analysis of selected species ofPinus. — Silvae Genet.10, 77–84.
Schlarbaum, S. E., 1980: Cytotaxonomic relationships withinTaxodiaceae. — Ph. D. dissertation, Colorado State University.
, 1975a: The chromosome study of giant sequoia,Sequoiadendron giganteum. — Silvae Genet.24, 23–26.
, 1975b: Chromosomes of incense cedar. — J. Hered.66, 41–42.
, 1976: Chromosome study of Japanese umbrella pine. — J. Hered.67, 65–67.
, 1981: Differential reactivity in tree chromosome staining. — J. Hered.72, 62–63.
Stiff, M. L., 1952: The geographical distribution and cytology ofConiferales. — Ph. D. dissertation. University of Virginia.
Sugihara, Y., 1941a: The embryogeny ofCunninghamia lanceolata Hooker. — Sci. Rep. Tohoku Imp. Univ. 4th. Ser. Biol.16, 187–192.
, 1941b: Embryological observations onTaiwania cryptomerioides Hayata. — Sci. Rep. Tohoku Imp. Univ. 4th Ser. Biol.16, 291–295.
Tsuchiya, T., 1971: An improved acetocarmine squash method, with special reference to the modified Rattenbury's method of making a preparation permanent. — Barley Genet. Newslett.1, 71–72.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Schlarbaum, S.E., Tsuchiya, T. The chromosomes ofCunninghamia konishii, C. lanceolata, andTaiwania cryptomerioides (Taxodiaceae). Pl Syst Evol 145, 169–181 (1984). https://doi.org/10.1007/BF00983946
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00983946