DOI: 10.1139/g89-539. Karyotype and achiasmatic female meiosis in Helicoverpa armigera (Hübner) and H. punctigera (Wallengren) (Lepidoptera: Noctuidae)

Karyotype and achiasmatic female meiosis in Helicoverpa armigera (Hübner) and H. punctigera (Wallengren) (Lepidoptera: Noctuidae)

10.1139/g89-539

Crossref journal-article

Canadian Science Publishing

Genome (155)

Abstract

The economically important pest species Helicoverpa armigera and H. punctigera have a karyotype consisting of 31 pairs of chromosomes. The chromosomes are in a graded series of sizes such that pairs cannot be differentiated. Cytological evidence suggests that female meiosis is achiasmatic. Precocious separation of bivalents into univalents at metaphase I was observed in some spermatocytes of H. punctigera. This species also had a consistently greater number of bivalents with fully terminalised chiasmata in each spermatocyte at male metaphase I than H. armigera.Key words: Lepidoptera, Helicoverpa, achiasmatic meiosis, karyotype.

Bibliography

Fisk, J. H. (1989). Karyotype and achiasmatic female meiosis in Helicoverpa armigera (HÃ¼bner) and H. punctigera (Wallengren) (Lepidoptera: Noctuidae). Genome, 32(6), 967â971.

Authors 1

Jennifer H. Fisk (first)

References 0 Referenced 15

None

Dates

Type	When
Created	14 years, 4 months ago (April 24, 2011, 4:24 a.m.)
Deposited	5 years, 8 months ago (Jan. 5, 2020, 9:37 a.m.)
Indexed	1 month ago (Aug. 2, 2025, 1:08 a.m.)
Issued	35 years, 9 months ago (Dec. 1, 1989)
Published	35 years, 9 months ago (Dec. 1, 1989)
Published Print	35 years, 9 months ago (Dec. 1, 1989)

Funders 0

None

BibTeX

@article{Fisk_1989, title={Karyotype and achiasmatic female meiosis in Helicoverpa armigera (Hübner) and H. punctigera (Wallengren) (Lepidoptera: Noctuidae)}, volume={32}, ISSN={1480-3321}, url={http://dx.doi.org/10.1139/g89-539}, DOI={10.1139/g89-539}, number={6}, journal={Genome}, publisher={Canadian Science Publishing}, author={Fisk, Jennifer H.}, year={1989}, month=dec, pages={967–971} }

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