Karyotype Symmetry/Asymmetry Index (S/AI) in Bovidae Taxa

Year 2024, , 28 - 37, 15.06.2024

Halil Erhan Eroğlu

https://doi.org/10.55213/kmujens.1427150

Abstract

The chromosomal data, particularly karyotype asymmetry, provide valuable information on karyotypic phylogeny and speciation. The karyotype asymmetry is a good expression of the general morphology of chromosomes. The S/AI is a formula used to calculate the karyotype asymmetry. The formula was applied to 79 species and five subspecies from 46 genera for female individuals and 72 species and five subspecies from 42 genera for male individuals in the Bovidae family. According to the S/AI values between 1.2903 and 3.0000, the dendrograms were drawn to demonstrate the interspecies relationships in the family. The karyotypes of females were symmetrical in 10 species and two subspecies from 6 genera and between symmetrical and asymmetrical in 69 species and three subspecies from 40 genera. Male karyotypes were symmetrical in 10 species and two subspecies from 6 genera and between symmetrical and asymmetrical in 62 species and three subspecies from 36 genera. The dendrograms will contribute to phylogenetic studies in mammals. Already, they showed results similar to those of molecular taxonomy.

Keywords

Interspecific relationships, Karyotypic variations, Chromosome

Bovidae Taksonlarında Karyotype Simetri/Asimetri İndeksi (S/AI)

Abstract

Kromozomal veriler, bunlardan özellikle karyotip asimetrisi, karyotipik filogeni ve türleşme hakkında değerli bilgiler sağlamaktadır. Karyotip asimetrisi, kromozomların genel morfolojisini iyi bir şekilde ifade eder. S/AI, karyotip asimetrisini hesaplamak için kullanılan bir formüldür. Formül, Bovidae familyasında dişi bireyler için 46 cinsten 79 tür ve 5 alttüre, erkek bireyler için 42 cinsten 72 tür ve 5 alttüre uygulanmıştır. Familyadaki türler arası ilişkileri gösteren dendrogramlar, 1.2903 ile 3.0000 arasında değişen S/AI değerlerine göre çizilmiştir. Dişilerin karyotipleri 6 cinsin 10 tür ve 2 alttüründe simetrik, 40 cinsin 69 tür ve 3 alttüründe ise simetrik ve asimetrik arasındadır. Erkeklerin karyotipleri 6 cinsin 10 tür ve 2 alttüründe simetrik, 36 cinsin 62 tür ve 3 alttüründe ise simetrik ve asimetrik arasındadır. Dendrogramlar, memelilerdeki filogenetik çalışmalara katkıda bulunacaktır. Dendrogramlar ve moleküler taksonomi sonuçları benzer sonuçlar göstermişlerdir.

Keywords

Türler arası ilişkiler, Karyotipik varyasyonlar, Kromozom

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