Fariba Hasnvand; Masoud Haidarizadeh; Hamidreza Rezaee
Abstract
Dogs were domesticated from grey wolf about several thousand years ago with the beginning of agricultural activities . High genetic diversity and many varied breeds of domestic dogs are found in the world. Indigenous in Hamedan province try to cross bred between dogs and wolves in order to have ...
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Dogs were domesticated from grey wolf about several thousand years ago with the beginning of agricultural activities . High genetic diversity and many varied breeds of domestic dogs are found in the world. Indigenous in Hamedan province try to cross bred between dogs and wolves in order to have hybrid animals as guard dogs. The relationships between Hemedan`s dogs with the other Iranian ones have been investigated using mtDNA control-region sequence data from a subset of 55 individuals (29 dogs of Hamedan province and 26 individuals extracted from NCBI). Our results revealed an existence of high genetic diversity in Iranian dogs. Dogs in Hamedan Province have complex relationships and among them, observed several common haplotypes. The dogs in the province, have extensive communication with dogs in the other province, especially with northern area and western area. In fact, this communication complexity indicates behavior of chaos reproductive in the dog domestication.
Jalil Imani; Mohamd Kaboli; Mohsen Ahmadi; Rasol Khosravi; Asoud Nazarizadeh; Fatemeh Rasoulinasab
Abstract
Measurements and delineation of organism’s morphologic characterization is an useful tool for identification and taxonomy of them and also, from the perspective of evolutionary ecology, for describing the adaptation of different populations of a species to local conditions is important. Brown Bear ...
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Measurements and delineation of organism’s morphologic characterization is an useful tool for identification and taxonomy of them and also, from the perspective of evolutionary ecology, for describing the adaptation of different populations of a species to local conditions is important. Brown Bear is the largest carnivore of Iran and is widely distributed in mountainous areas of North and West of the country. In this study, a total of 21 skulls (including 11 of the Alborz Mountains and 10 skulls of the Zagros Mountains) were collected and 26 variables for each of the skulls were measured. We log-transformed the measured variables to provide normality and using geometric mean the effect of size and age was removed. Significant Differences in measured variables was examined using t-test and then we performed principle component analysis (PCA) to extract orthogonal multivariate axes describing size and shape of the specimens. The results of t test revealed that between Alborz and Zagros specimens eight variables had significant difference. We found that based on the size, Alborz specimens were larger than the Zagros samples. Also, PCA performed on the eight significant variables, indicated a noteworthy difference in the size, but no in the shape, of the skull of the respected population of two regions, which was led to comprise two quite distinct groups.
