Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/9091
Title: First observation of multiple paternity in loggerhead sea turtles, Caretta caretta, nesting on Dalyan Beach, Turkey
Authors: Sarı, Fikret
Köseler, Aylin
Kaska, Yakup
Keywords: Caretta caretta
Dalyan Beach
Inter-nesting mating
Microsatellite
Multiple paternity
Sperm storage
genetic marker
genotype
hatching
nesting behavior
paternal care
population density
reproductive strategy
sperm
turtle
Dalyan
Mugla
Turkey
Caretta
Cheloniidae
Publisher: Elsevier B.V.
Abstract: Sea turtles are promiscuous breeders with both males and females mating multiply. Due to this mating system, multiple paternity (MP) occurs in sea turtle clutches, and the frequency of MP varies greatly within and among species. In this study, the paternity of a population of loggerhead sea turtles (Caretta caretta) nesting on Dalyan Beach in Turkey was investigated using two highly polymorphic microsatellite markers (CcP2F11 and CcP7C06). Tissue samples collected from randomly selected hatchlings (a total of 522 hatchlings) from two to three successive clutches (a total of 25 clutches) of 10 nesting females were used for paternity analysis with an average sampling effort of 28.2% of offspring per clutch. Evidence of MP in seven out of 10 females (70%) was found, and it was detected that four out of these seven females mated with at least two males, whereas the remaining three females with at least three males. By analysing the successive clutches of females, it was detected that both the number and genotype of contributing sires was same in all clutches of a given female, possibly due to the lack of successful inter-nesting mating in this population. The high frequency of MP implies the possible high genetic diversity within this population. This study indicates that the density of individuals may be the reason of the high frequency of MP in this relatively small population because mating takes place mainly in a narrow area in Dalyan. The possible mating behaviours of the sea turtles and their population structures were discussed in light of the high frequency of MP within this population reported for the first time. © 2016 Elsevier B.V.
URI: https://hdl.handle.net/11499/9091
https://doi.org/10.1016/j.jembe.2016.11.018
ISSN: 0022-0981
Appears in Collections:Fen-Edebiyat Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Tıp Fakültesi Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Show full item record



CORE Recommender

SCOPUSTM   
Citations

12
checked on Jun 1, 2024

WEB OF SCIENCETM
Citations

10
checked on Jun 4, 2024

Page view(s)

38
checked on May 27, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.