Anadolu’da Yetişen Gundelia (Asteraceae) Taksonlarının ITS Filogenisi ve Moleküler Tarihlendirilmesi

Yıl 2017, Cilt: 27 Sayı: 2, 74 - 77, 15.12.2017

Burcu Tarıkahya Hacıoglu Mehmet Fırat

Öz

Flora
kitaplarına göre Gundelia L.
monofiletik bir cins olarak bilinmektedir. Gundelia tournefortii L. cinsin
tek türü olarak bilinmektedir. Çalışmamızda ITS bölgesine dayalı filogenetik
analiz ve moleküler tarihleme yapmak için yeni tanımlanan türleri de kullandık.
Bunlar: Gundelia aragatsi Vitek, Fayvush, Tamanyan &
Gemeinholzer, Gundelia dersim Vitek, Yüce & Ergin, Gundelia munzuriensis Vitek, Yüce & Ergin, Gundelia
vitekii Armağan, Gundelia komagenensis Fırat, Gundelia
colemerikensis Fırat, Gundelia cilicica Fırat ve Gundelia anatolica Fırat.
Adı geçen yeni türler Yürkiye’den arazi çalışmaları yaparak toplanmış ve bizim
toplamalarımızın yanısıra G. tournefortii türüne ait daha
önceki çalışmalarda ortaya çıkmış ITS dizileri de kullanılmıştır. Filogenetik ağaca göre, G.
anatolica tüm Gundelia örneklerinden farklıdır. Daha
önceki çalışmalarda toplanmış bazı G. tournefortii örnekleri G.
cilicica, G. dersim ve G.
colemerikensis ile birlikte
kümelenmiştir. G. munzurensis G.
vitekii ile grup
oluşturmuştur. Gundelia komagenensis ve G.
aragatsi örnekleri birbirine en yakın gruplanmışlardır. Moleküler
tarihlendirmeye göre Gundelia cinsinin ayrılma zamanı
14.1 milyon yıl öncesine tarihlenmektedir.

Anahtar Kelimeler

Asteraceae, Gundelia, ITS, moleküler tarihleme, filogeni

ITS Phylogeny and Molecular Dating of some Gundelia (Asteraceae) of Anatolia

Öz

Gundelia L. is known to be a monotypic genus according to the
flora books. Gundelia tournefortii L. was the only species of the genus Gundelia L. In our research we used the
recently introduced species: Gundelia aragatsi Vitek, Fayvush,
Tamanyan & Gemeinholzer, Gundelia dersim Vitek, Yüce & Ergin, Gundelia munzuriensis Vitek, Yüce & Ergin, Gundelia
vitekii Armağan, Gundelia komagenensis Fırat, Gundelia
colemerikensis Fırat, Gundelia cilicica Fırat and Gundelia anatolica Firat, in order to reconstruct a phylogeny inference
and molecular dating by using ITS region. The mentioned species were collected
from Turkey
and beside our collections, the ITS sequences belonging to G.
tournefortii accessions of former studies were used in our research.
According to the phylogeny inference, G. anatolica was different from
all Gundelia accessions. Some G.
tournefortii accessions belonging to former studies grouped with G.
cilicica, G. dersim and G.
colemerikensis, G. munzurensis clustered with G.
vitekii. Gundelia komagenensis and G.
aragatsi accessions were grouped as close relatives. According to
the molecular dating the distinction of the genus Gundelia from the
relative genera was around 14.1 million years ago (mya).

Anahtar Kelimeler

Asteraceae, Gundelia, ITS, molecular dating, phylogeny

Kaynakça

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