Canidae Taksonlarının Karyotip Simetri/Asimetri İndeksi (S/AI) ile Karşılaştırılması

Year 2023, Volume: 7 Issue: 1, 30 - 39, 30.06.2023

Halil Erhan Eroğlu

https://doi.org/10.47137/usufedbid.1245229

Abstract

Canidae familyası, Carnivora takımının Caniformia alt takımında yer almaktadır. Canidae familyasında hem evcil hem de yabani türler bulunmaktadır. Familya, 13 cins içerisnde yer alan en az 35 yabani türden oluşur. Canidae familyasında kromozom sayısı 2 gruba ayrılır. (i) Çoğunlukla akrosentrik otozomlardan oluşan kromozom sayıları 2n = 54, 66, 74, 76 ve 78'dir. (ii) Çoğunlukla metasentrik ve submetasentrik otozomlardan oluşan kromozom sayıları, 2n = 34, 36, 38 ve 50'dir. S/AI formülü, yüksek hayvanlarda ve insanlarda karyotip simetrisini veya asimetrisini ölçer. Bu çalışmada, formül Canidae türlerine uygulanmıştır. Detaylı literatür taraması ile karyotip formülleri elde edildikten sonra 25 dişi ve 17 erkek taksonun S/AI verileri ve karyotip tipleri belirlenmiştir. S/AI değerlerine göre taksonlar arasındaki karyolojik varyasyonları gösteren bir dendrogram çizilmiştir. Sonuçlar, memelilerin filogenisine katkıda bulunacaktır.

Keywords

canidae, carnivora, karyotype, phylogeny, symmetry/asymmetry index

The Comparison of the Canidae Taxa with Karyotype Symmetry/Asymmetry Index (S/AI)

Abstract

The family Canidae is placed in the suborder Caniformia in the order Carnivora. There are both domestic and wild species in Canidae. The family consists of at least 35 wild species in 13 genera. The number of chromosomes in Canidae is divided into 2 groups. (i) The chromosome numbers are 2n = 54, 66, 74, 76, and 78 with mostly acrocentric autosomes. (ii) The chromosome numbers are 2n = 34, 36, 38, and 50 with mostly metacentric and submetacentric autosomes. The formula S/AI measure the symmetry or asymmetry of karyotype in higher animals and humans. In this study, the formula was applied to the Canidae species. After obtaining karyotype formulae with a detailed literature review, S/AI data and karyotype types of 25 female taxa and 17 male taxa were determined. According to the S/AI values, a dendrogram was drawn showing karyological variations among the taxa. The results will contribute to the phylogeny of mammals.

Keywords

canidae, carnivora, karyotype, phylogeny, symmetry/asymmetry index

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