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

C. C. Chinnappa*, Reginald Victor

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

18 اقتباسات (Scopus)

ملخص

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.

اللغة الأصليةEnglish
الصفحات (من إلى)227-236
عدد الصفحات10
دوريةChromosoma
مستوى الصوت71
رقم الإصدار2
المعرِّفات الرقمية للأشياء
حالة النشرPublished - يناير 1979
منشور خارجيًانعم

ASJC Scopus subject areas

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بصمة

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