Achiasmatic meiosis and complex heterozygosity in female cyclopoid copepods (Copepoda, Crustacea)

C. C. Chinnappa*, Reginald Victor

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


In Mesocyclops edax S.A. Forbes, 2n=14, a North American copepod, the females are heterozygous for several interchanges leading to the formation of large rings of chromosomes (rings of 14, or of 12 plus 1 bivalent) at meiotic metaphase, comparable to those of the plant Oenothera, although no chiasmata are present. The chromosomes are more or less metacentric and have large terminal H-segments. In the rings homologous arms are held together by connecting fibers which insert close to the euchromatin-heterochromatin junctions. Coordinated orientation of the zigzag type seems to be the role.

Original languageEnglish
Pages (from-to)227-236
Number of pages10
Issue number2
Publication statusPublished - Jan 1979

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)


Dive into the research topics of 'Achiasmatic meiosis and complex heterozygosity in female cyclopoid copepods (Copepoda, Crustacea)'. Together they form a unique fingerprint.

Cite this