A New Record of Reduced Chromosome Number in Tenebrionidae (Coleoptera)

Yıl 2023, Cilt: 7 Sayı: 1, 86 - 89, 30.06.2023

Dirim Şendoğan

https://doi.org/10.31594/commagene.1296294

Öz

The karyological features of Akis subtricostata was determined for the first time with conventional and silver nitrate staining. The diploid number 2n=16 and meioformula 7+neoXY represents a deviation from the modal karyotype of Coleoptera. The pericentromeric heterochromatin was detected with both Giemsa and silver nitrate staining. In addition to determining a single possible NOR on prophase I nuclei, AgNO3 revealed that several telomeric regions of mitotic metaphase chromosomes were slightly more argyrophilic.

Anahtar Kelimeler

Karyotype , NOR , neoXY , Akis subtricostata , heterochromatin

Tenebrionidae’de (Coleoptera) İndirgenmiş Kromozom Sayısına Yeni Bir Kayıt

Öz

Akis subtricostata'nın karyolojik özellikleri geleneksel ve gümüş nitrat boyama ile ilk kez belirlenmiştir. 2n=16 diploid sayısı ve 7+neoXY formülü, Coleoptera takımının model karyotipinden bir sapma temsil etmektedir. Perisentromerik heterokromatin hem Giemsa hem de gümüş nitrat boyamaları saptanmıştır. Profaz I nukleuslarında olası tek bir NOR belirlemenin yanı sıra, AgNO3 birkaç mitotik metafaz kromozomunun telomerik bölgelerinin biraz daha arjirofilik olduğunu ortaya çıkartmıştır.

Anahtar Kelimeler

Karyotip , NOR , neoXY , Akis subtricostata , heterokromatin

Kaynakça

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