Journal of Genetics

, 24:145 | Cite as

Meiosis in a triploidOenothera

  • David G. Catcheside


A corrected account of the critical stages in the cytology of the pollen mother cells of triploidOe. pycnocarpa is given. Various associations of chromosomes occur, including free univalents; rod and ring bivalents; chain, Y-shaped and “ring-and-rod” trivalents; chain, branched chain and “ring-and-chain” quadrivalents; and other associations involving higher numbers of chromosomes, with or without triple chiasmata.

All the types of chromosomes grouping, with one doubtful exception (a sexivalent), conform to the requirements of the segmental formula proposed, whence it must be deduced that structural hybridity forms a correct explanation of the chromosome complement and its behaviour.


Triple Junction Pollen Mother Cell Ring Pair Segmental Interchange Spindle Fibre Attachment 
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  1. Belling, J. (1927). “The attachments of chromosomes at the reduction division in flowering plants.”Journ. Gen. xviii, 177–205, 15 figs.CrossRefGoogle Scholar
  2. Blakeslee, A. F. andCleland, R. E. (1930). “Interaction between complexes as evidence for segmental interchange in Oenothera.”Nat. Acad. of Sciences, xvi, 177–89.CrossRefGoogle Scholar
  3. Catoheside, D. G. (1930). “Chromosome linkage and syndesis in Oenothera.”Trans. Roy. Soc. Edin. lvi, 467–84, 3 plates.Google Scholar
  4. Darlington, C. D. (1929a). “King formation inOenothera and other genera.”Journ Gen. xx. 345–64, 1 diagram.CrossRefGoogle Scholar
  5. — (1929b). “Chromosome behaviour and structural hybridity in theTrade- scantiae.”Ibid. xvi, 207–86, 84 figs.Google Scholar
  6. - (1930a). “Telosynapsis or structural hybridity in Oenothera.”Nature, May 17th.Google Scholar
  7. - (1930b). “Meiosis inPrimula sinensis.”Journ. Gen. xvii.Google Scholar
  8. Davis, B. M. andKulkarni, Ch. C. (1930). “The cytology and genetics of a haploid sport fromOenothera franciscana.”Genetics, xv, 55–80, 4 plates, 3 figs.Google Scholar
  9. Emerson, S. H. (1929). “The reduction division in a haploid Oenothera.”La Cellule, xxxix, 159–65, 1 plate.Google Scholar
  10. Gates, R. R. (1909). “The behaviour of the chromosomes inOenothera lata ×Oe. gigas.”Bot. Gaz. xlviii, 179–99, 3 plates.CrossRefGoogle Scholar
  11. — (1915).The Mutation Factor in Evolution, with particular reference to Oenothera. London: Macmillan.Google Scholar
  12. — (1923). “The chromosomes of a triploidOenothera hybrid.”Ann. Bot. xxxvii, 505–9, 1 plate.Google Scholar
  13. Geerts, J. M. (1911). “Cytologische Untersuchungen einiger Bastarde vonOenothera gigas.”Ber. d. deut. bot. Gesells. xxix, 160–6, 1 plate.Google Scholar
  14. Håkansson, A. (1926). “Zur Zytologie der Gattung Godetia”Hereditas vi, 257–74 64 figs.Google Scholar
  15. — (1926). “Über das Verhalten der Chromosomen bei der heterotypischen Teilung schwediseherOenothera Lamarckiana und einiger ihrer Mutanten und Bastarde.”Ibid. viii, 255–304, 1 plate, 7 figs.Google Scholar
  16. — (1930). “Zur Zytologie trisomiseher Mutanten ausOenothera Lamarckiana.”Ibid. xiv, 1–32, 6 figs.Google Scholar
  17. Hoeppener, E. andRenner, O. (1929). “Genetische und zytologische Oenotherenstudien II.”Bot Abhandl., heraus, v. K. Goebel, Heft xv, 7 plates, 30 figs.Google Scholar
  18. Katô, K. (1930). “Cytologioal studies of pollen mother cells ofRhoeo discolor Hance, with special reference to the question of the mode of syndesis.”Mems. Coll. Sci., Kyoto Imp. Univ. Ser. B, ii, 139–61, 2 plates, 9 figs.Google Scholar
  19. Kihara, H. (1927). “Über das Verhalten der ‘end-to-end’ gebundenen Chromosomen vonRumex acetosella undOenothera biennis während der heterotypischen Kernteilung.”Jahrb. f. wiss. Bot lxvi, 429–460, 89 figs.Google Scholar
  20. Newton, W. C. F. andDarlington, C. D. (1929). “Meiosis in polyploids.”Journ. Gen. xxi, 1–56, 6 plates, 57 test-figs. and 1 diagram.CrossRefGoogle Scholar
  21. Oehlkers, F. (1929). “Chromosomenbindung und Genetik bei Oenothera.”Tübinger naturw. Abhandl. xii.Google Scholar
  22. van Overeem, C. (1922). “Über Formen mit abweichender Chromosomenzahl bei Oenothera,”Beih. Bot Centralbl. xxxix, 1–79, 15 plates, 8 figs.Google Scholar
  23. Sheffield, F. M. L. (1929). “Chromosome linkage inOenothera, with special reference to some F1 hybrids.”Proc. Roy. Soc. Lond. B, cv, 207–30, 2 plates.CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 1931

Authors and Affiliations

  • David G. Catcheside
    • 1
  1. 1.Botany Dept.University of GlasgowUK

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