Luu Anh Huynh, Budi Trifan, Singchat Worapong, Nguyen Chien Phuoc Tran, Panthum Thitipong, Tanglertpaibul Nivit, Thong Thanyapat, Vangnai Kanithaporn, Chaiyes Aingorn, Yokthongwattana Chotika, Sinthuvanich Chomdao, Han Kyudong, Muangmai Narongrit, Griffin Darren K, Romanov Michael N, Duengkae Prateep, Trong Ngu Nguyen, Srikulnath Kornsorn
Animal Genomics and Bioresource Research Unit (AGB Research Unit), Faculty of Science, Kasetsart University, 50 Ngamwongwan, Chatuchak, Bangkok, 10900, Thailand.
Interdisciplinary Graduate Program in Bioscience, Faculty of Science, Kasetsart University, 50 Ngamwongwan, Chatuchak, Bangkok, 10900, Thailand.
Genes Genomics. 2025 Apr 22. doi: 10.1007/s13258-025-01644-9.
Rare Dong Tao (DT) chickens are a unique and highly productive poultry breed introduced from Vietnam to Thailand ~ 30 years ago. It has a very peculiar appearance, including enormously enlarged feet with reddish scales, and considered local and culturally significant to both countries. Their adaptability and distinct genetic traits have attracted global interest, underscoring their potential for breeding programs and a need for their thorough genetic makeup assessment.
To assess the genetic diversity and differentiation within the Dong Tao chicken breed, comparing two populations introduced in Thailand with a native population in Vietnam.
Three Dong Tao chicken populations from Thailand and Vietnam-along with 54 other indigenous, local chicken, and red junglefowl populations from Thailand, were analyzed using 28 microsatellite markers.
High genetic variability and low inbreeding levels were observed in these populations, indicating their effective management despite historical bottlenecks. Genetic similarities between DT-U and DT-HY and indigenous breeds, as well as the closer alignment of DT-L with red junglefowl, highlighted existing introgression and adaptation processes. Two markers, MCW0098 and MCW0216, showed a variation pattern due to potential impact of directional selection, possibly driven by environmental adaptation pressures. These findings emphasize the importance of DT chickens as genetic resources for breeding programs that focus on climate resilience and productivity enhancement.
Dong Tao chickenshared genetic similarities with indigenous and local chicken breeds, and red junglefowl, with potential influence of directional selection driven by environmental adaptation pressures.
珍稀的东涛鸡是约30年前从越南引入泰国的独特且高产的家禽品种。它外形非常奇特，包括脚极大且有红色鳞片，在两国都被视为具有地方特色和文化意义。它们的适应性和独特遗传特性引起了全球关注，凸显了其在育种计划中的潜力以及对其进行全面基因组成评估的必要性。
评估东涛鸡品种内的遗传多样性和分化情况，比较引入泰国的两个种群与越南的一个本地种群。
使用28个微卫星标记对来自泰国和越南的三个东涛鸡种群以及来自泰国的54个其他本土、地方鸡种和原鸡种群进行分析。
在这些种群中观察到高遗传变异性和低近亲繁殖水平，表明尽管经历过历史瓶颈，但它们仍得到了有效管理。DT-U和DT-HY与本土品种之间的遗传相似性，以及DT-L与原鸡的更紧密关联，突出了现有的基因渗入和适应过程。两个标记MCW0098和MCW0216由于定向选择的潜在影响呈现出变异模式，可能是由环境适应压力驱动的。这些发现强调了东涛鸡作为育种计划遗传资源的重要性，这些育种计划侧重于气候适应力和生产力提升。
东涛鸡与本土和地方鸡种以及原鸡存在遗传相似性，受到环境适应压力驱动的定向选择的潜在影响。
