[Mitarbeiter.zoologie] Fwd: [evoeko] BÜ IES Semineri - Alexey Yanchukov, 19 Aralık Pt 16:30 - The evolution of six all-female species of rock lizards (genus Darevskia) in Eastern Anatolia and Southern Caucasus

[Atilla Çelikgil]

Dear All,

The forwarded talk below may interest some of you. Please mind that it is
in UTC +3, which is 2 hours ahead of us.

All the best,

Atilla

---------- Forwarded message ---------
From: Pınar Ertör <pinarertor at gmail.com>
Date: Thu, 8 Dec 2022 at 12:55
Subject: [evoeko] BÜ IES Semineri - Alexey Yanchukov, 19 Aralık Pt 16:30 -
The evolution of six all-female species of rock lizards (genus Darevskia)
in Eastern Anatolia and Southern Caucasus
To: <evoeko at googlegroups.com>


Merhaba herkese,
Boğaziçi Üniversitesi Çevre Bilimleri Enstitüsü Seminer Serisi'nde bu ayki
konuşmacımız *Dr. Alexey Yanchukov* olacak, *19 Aralık Pazartesi 16:30*'da
Zoom üzerinden yapılacak konuşmanın başlığı ise "*The evolution of six
all-female species of rock lizards (genus Darevskia) in Eastern Anatolia
and Southern Caucasus*".
Aşağıda kayıt linki ve detaylar var.
Görüşmek üzere, sevgiler,
Pınar
---

*Institute of Environmental Sciences Seminar Series*

*“The evolution of six all-female species of rock lizards (genus Darevskia)
in Eastern Anatolia and Southern Caucasus”*

*By Assist. Prof. Alexey Yanchukov*

Zonguldak Bülent Ecevit University

We cordially invite you to the online seminar “*The evolution of six
all-female species of rock lizards (genus Darevskia) in Eastern Anatolia
and Southern Caucasus*” by Assist. *Prof. Alexey Yanchukov*, Zonguldak
Bülent Ecevit University.

*When*: 19 December, Monday, 16:30-17:30

*Where*: We will be sharing the Zoom link with the registrants a few days
before the seminar via email. Please do not forget to register using the
below link.

*Registration link: https://bit.ly/IES_Seminar_Yanchukov
<https://bit.ly/IES_Seminar_Yanchukov>*

*Contact:* pinar.ertor at boun.edu.tr for any questions.

*Abstract: *It is hard to find examples that illustrate biological
evolution better than adaptive radiation, that is, a rapid increase in the
number of species with a common ancestor, characterized by great ecological
and morphological diversity. Almost all real-world examples of adaptive
radiation come from tropical areas. The rock lizards *Darevskia, *a genus
that contains ~25 species, is an exception to the rule, as their evolution
occurred entirely in the temperate zone stretching from SE Europe to Iran.
High diversity in this group is increased even further by hybridization
between the different species. In particular, when some species hybridize,
their offspring are all females, and these females are able to reproduce
without any males taking part in the process (a biological phenomenon known
as parthenogenesis). Currently, there are six such parthenogenetic
“species” of *Darevskia* lizards, and each species is believed to have
appeared independently from a separate hybridization event. Interestingly,
all parthenogens are only found in a small area near the border of Eastern
Anatolia and South Caucasus.

In our study, we are using various methods of genotyping the hybrid
parthenogenetic species and their parents. With the help of the modern
methods of genomics, we were able to establish exactly where the former
have originated, estimate the approximate times of their origin, and
pinpoint precisely which extant parental populations are their closest
genetic relatives. The important question is how the all-female populations
have been able to withstand the ever changing environment and successfully
compete with the parental species on the evolutionary time scale. We are
now testing several new hypotheses that might help to explain how the
genetic diversity is maintained in the parthenogenetic species.

*About **Alexey Yanchukov**:*

Oleksiy (Alexey) Yanchukov was born in Lviv, Ukraine, where he graduated
with a university degree in biology. Soon after finishing his PhD at
Schmalhausen Institute of Zoology in Kyiv, he moved on to several
postdoctoral positions in Scotland, New Zealand, California and the Czech
Republic. In late 2015 he was invited to run a teaching and research
program as a faculty member at Bülent Ecevit University in Zonguldak.
Alexey’s research interests included, in different times, the population
genetics of amphibians, theoretical population biology, and evolutionary
genetics of the house mice. Since he moved to Türkiye, he is mostly focused
on exploring the genetic basis of incredible biodiversity of Anatolian and
Caucasian biota, which sometimes include humans and even bacteria.

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