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Feral pigeon populations: their gene pool and links with local domestic breeds
bioRxiv - Zoology Pub Date : 2020-03-18 , DOI: 10.1101/2020.01.18.911198
Dimitri Giunchi , Nadia Mucci , Daniele Bigi , Chiara Mengoni , N. Emilio Baldaccini

Columba livia is a wild bird whose domestication has led to a large number of pigeon breeds. The occasional loss or straying of domestic birds determined the origin of feral pigeons, which are now widespread all around the world. In this study, we assumed that the main contribution to feral populations is provided by domestic breeds reared in the same areas. We tested this hypothesis by analysing the variability of 12 microsatellite loci in nine Italian feral populations sampled in areas with different intensities of breeding and selecting domestic breeds. We included in the analysis samples belonging to domestic lineages commonly bred in Italy The pattern of geographic differentiation of feral populations turned out to be rather complex and only partially explained by the geographic distance between populations. This pattern can be understood only when the domestic breeds were included in the analysis. In particular, feral populations located in regions with a long-lasting tradition of pigeon breeding showed a high level of admixture with domestic breeds, in particular with Racing Homer and Piacentino. Ferals from Bolzano, Venice and Sassari were characterized by unique genetic components, almost all of which are not shared by other feral populations and by the considered domestic breeds. Our results further emphasize the complex origin of feral populations which can be properly investigated only by considering the pool of domestic pigeons bred in the considered area and their past and present distribution.

中文翻译:

野鸽种群:他们的基因库并与本地家养品种有关

哥伦巴利维亚是野鸟,其驯化导致了许多鸽子品种。偶尔有家禽流失或迷路决定了野生鸽子的起源,而野生鸽子现已遍布世界各地。在这项研究中,我们假设对野生种群的主要贡献是由在相同地区饲养的家养品种提供的。我们通过分析在不同繁殖强度和选择国内品种的地区采样的9个意大利野生种群中的12个微卫星基因座的变异性,检验了这一假设。我们在分析样本中包括了意大利通常繁殖的家系。野生种群的地理分化模式被证明是相当复杂的,并且只能由种群之间的地理距离来部分解释。只有在分析中包括国内品种时才能理解这种模式。尤其是,在具有长期信鸽繁殖传统的地区,野生种群与国内品种,尤其是赛马·荷马和皮亚森蒂诺的混合水平很高。来自博尔扎诺(Bolzano),威尼斯(Venice)和萨萨里(Sassari)的野生动物具有独特的遗传成分,几乎所有其他野生种群和公认的家养品种都没有共享这些遗传成分。我们的研究结果进一步强调了野生种群的复杂起源,只有考虑所考虑区域内繁殖的家鸽种群及其过去和现在的分布,才能进行适当的调查。在具有悠久的鸽子育种传统的地区,野生种群与国内品种,尤其是赛马·荷马和皮亚森蒂诺的混血水平很高。来自博尔扎诺(Bolzano),威尼斯(Venice)和萨萨里(Sassari)的野生动物具有独特的遗传成分,几乎所有其他野生种群和公认的家养品种都没有共享这些遗传成分。我们的研究结果进一步强调了野生种群的复杂起源,只有考虑所考虑区域内繁殖的家鸽种群及其过去和现在的分布,才能进行适当的调查。在具有悠久的鸽子育种传统的地区,野生种群与国内品种,尤其是赛马·荷马和皮亚森蒂诺的混血水平很高。来自博尔扎诺(Bolzano),威尼斯(Venice)和萨萨里(Sassari)的野生动物具有独特的遗传成分,几乎所有其他野生种群和公认的家养品种都没有共享这些遗传成分。我们的研究结果进一步强调了野生种群的复杂起源,只有考虑所考虑区域内繁殖的家鸽种群及其过去和现在的分布,才能进行适当的调查。几乎所有其他野生种群和被认为是家养品种都没有共享。我们的研究结果进一步强调了野生种群的复杂起源,只有考虑所考虑区域内繁殖的家鸽种群及其过去和现在的分布,才能进行适当的调查。几乎所有其他野生种群和被认为是家养品种都没有共享。我们的研究结果进一步强调了野生种群的复杂起源,只有考虑所考虑区域内繁殖的家鸽种群及其过去和现在的分布,才能进行适当的调查。
更新日期:2020-03-18
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