Effect of artificial selection on female choice among domesticated chickens Gallus gallus f.d.

نویسندگان

  • I Tiemann
  • G Rehkämper
چکیده

In the wild, females choose males with potential good genes to increase their reproductive success in terms of attractive sons and, in the long run, more descendants. Whether this is true of domesticated species is yet uncertain. Our experiments demonstrate breed-specific mate choice among domesticated chickens. Sexually mature females of a traditional domestic chicken breed, White Crested Polish, were compared with Red Leghorn females in the first year of the experiments, whereas they were compared with Lohmann Selected Leghorn Classic females in the second year. White Crested Polish have a statistically significant preference for males of their own breed when a male of another breed is also presented. These data suggest that female choice exists even under the constraints of domestication. Domestication as seen here is an evolutionary process that integrates the human interests of animal breeding with innate mate choice preferences of the same animals.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evolutionary Pets: Offspring Numbers Reveal Speciation Process in Domesticated Chickens

Since Darwin, the nature of the relationship between evolution and domestication has been debated. Evolution offers different mechanisms of selection that lead to adaptation and may end in the origin of new species as defined by the biological species concept. Domestication has given rise to numerous breeds in almost every domesticated species, including chickens. At the same time, so-called ar...

متن کامل

The Origin and Genetic Variation of Domestic Chickens with Special Reference to Junglefowls Gallus g. gallus and G. varius

It is postulated that chickens (Gallus gallus domesticus) became domesticated from wild junglefowls in Southeast Asia nearly 10,000 years ago. Based on 19 individual samples covering various chicken breeds, red junglefowl (G. g. gallus), and green junglefowl (G. varius), we address the origin of domestic chickens, the relative roles of ancestral polymorphisms and introgression, and the effects ...

متن کامل

The effects of artificial selection on genetic variation of some immune genes in Gallus gallus

To research effects of the artificial selection of Gallus gallus on G. domesticus' nucleotide diversity of immune genes, sequence polymorphisms of G. domesticus (23 genes), G. gallus (23 genes), G. lafayetti (17 genes), and G. sonneratii (17 genes) were obtained from GenBank. The data set included 819 polymorphisms. Immune gene polymorphism and selection efficiency in the data from those four s...

متن کامل

Mixed ancestry and admixture in Kauai's feral chickens: invasion of domestic genes into ancient Red Junglefowl reservoirs.

A major goal of invasion genetics is to determine how establishment histories shape non-native organisms' genotypes and phenotypes. While domesticated species commonly escape cultivation to invade feral habitats, few studies have examined how this process shapes feral gene pools and traits. We collected genomic and phenotypic data from feral chickens (Gallus gallus) on the Hawaiian island of Ka...

متن کامل

Genetic characterization of Bhutanese native chickens based on an analysis of Red Junglefowl (Gallus gallus gallus and Gallus gallus spadecieus), domestic Southeast Asian and commercial chicken lines (Gallus gallus domesticus)

The genetic diversity of Bhutanese chickens needs to be understood in order to develop a suitable conservation strategy for these birds in Bhutan. In this, work, we used microsatellite markers to examine the genetic diversity of Bhutanese chickens. Four Bhutanese chicken varieties (Black plumage, Frizzle, Naked neck and Red Junglefowl-like, corresponding to Yuebjha Narp, Phulom, Khuilay and Sei...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Poultry science

دوره 88 9  شماره 

صفحات  -

تاریخ انتشار 2009