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| 1 | Transcriptome responses to heat stress in hypothalamus of a meat-type chicken显示文摘Background:Heat stress has resulted in great losses in poultry production.To address this issue,we systematically analyzed chicken hypothalamus transcriptome responses to thermal stress using a 44 k chicken Agilent microarray,Methods:Hypothalamus samples were collected from a control group reared at 25℃,a heat-stress group treated at 34℃ for 24 h,and a temperature-recovery group reared at 25℃ for 24 h following a heat-stress treatment.We compared the expression profiles between each pair of the three groups using microarray data.Results:A total of 1,967 probe sets were found to be differentially expressed in the three comparisons with P < 0.05 and a fold change(FC) higher than 1.5,and the genes were mainly involved in self-regulation and compensation required to maintain homeostasis.Consistent expression results were found for 11 selected genes by quantitative real-time PCR.Thirty-eight interesting differential expression genes were found from GO term annotation and those genes were related to meat quality,growth,and crucial enzymes.Using these genes for genetic network analysis,we obtained three genetic networks.Moreover,the transcripts of heat-shock protein,including Hsp 40 and Hsp 90,were significantly altered in response to thermal stress.Conclusions:This study provides a broader understanding of molecular mechanisms underlying stress response in chickens and discovery of novel genes that are regulated in a specific thermal-stress manner. | Hongyan Sun Runshen Jiang Shengyou Xu Zebin Zhang Guiyun Xu Jiangxia Zheng Lujiang Qu | 2015 | Journal of Animal Science and Biotechnology2015，6，3： | 2 |
| 2 | Origin and domestication history of Peking ducks deltermined through microsatellite and mitochondrial marker analysis显示文摘In order to elucidate the domestication history of Peking ducks, 190 blood samples from six Chinese indigenous duck breeds were collected with186 individualsgenotyped by 15 microsatellite markers. Both the FST and Nei’s standard genetic distances (Ds) from the microsatellite data indicated high genetic differentiation between Peking duck and other Chinese indigenous breeds. The haplotype network with mtDNA data showed that most of the Peking duck haplotypes were distinctly different from those of other domestic breeds. Although the H01 haplotype was shared by all domesticated duck breeds, Peking ducks displayed 12 specific domestic duck haplotypes, including four similar haplotypes H02, H04, H08 and H22, that formed a single haplogroup (A). Both H02 and H22 haplotypes were also shared by mallard and Peking ducks, indicating that Peking ducks originated from wild mallard ducks. | QU LuJiang, LIU Wei, YANG FangXi, HOU ZhuoCheng, ZHENG JiangXia, XU GuiYun & YANG Ning State Laboratory for Agrobiotechnology and Department of Animal Science and Technology, China Agricultural University, Beijing 100193, China | 2009 | Science China(Life Sciences)2009，52，11： | 2 |
| 3 | An EAV-HP Insertion in 5' Flanking Region of SLCO1B3 Causes Blue Egg- shell in the Chicken显示文摘 | Wang Zhepeng Lujiang Qu Junfeng Yao | 2013 | PLoS Genetics2013，9，10： | 1 |
| 4 | An EAVHP insertion in 5’flanking region of SLCO1B3causes blue eggshell in the chicken显示文摘 | Zheping Wang Lujiang Qu Junfeng Yao | 2013 | PLOS Genet2013，9，1： | 1 |
| 5 | Correlation analysis of the total IgY level in hen serum, egg yolk and offspring serum显示文摘The correlation between IgY levels of the serum and the yolk has been well documented in wild and domestic birds. The levels of total yolk IgY can be an index of the general health status of birds and may contribute to breeding programs when fitness of the offspring is a concern. We measured the levels of total serum IgY and yolk IgY in three different breeds(White Leghorn, Silkie and Dongxiang blue-shell) using indirect ELISA, and found that there was a significantly positive correlation between the levels of total serum IgY and total yolk IgY in all three breeds(White Leghorn: r=0.404, P<0.001, n=100; Silkie: r=0.561, P<0.001, n=70; Dongxiang blue-shell: r=0.619, P<0.001, n=30). We also measured the total serum IgY levels in the 3-day-old offspring hatched from the Silkie hens and results were significantly correlated for serum IgY levels(r=0.535, P<0.001, n=70) and the yolk IgY levels(r=0.481, P<0.001, n=70). The regression analysis showed simple linear regression between IgY levels in hen serum, yolk and offspring serum. Our results suggest that total IgY level could be used as an index for chicken fitness. | Hancong Sun Sirui Chen Xia Cai Guiyun Xu Lujiang Qu | 2013 | Journal of Animal Science and Biotechnology2013，4，4： | 1 |
| 6 | Origins,timing and introgression of domestic geese revealed by whole genome data显示文摘Background Geese are among the most important poultry species in the world.The current generally accepted hypothesis is that the European domestic geese originated from greylag geese(Anser anser),and Chinese domestic geese have two origins,most of which originated from swan geese(Anser cygnoides),and the Yili goose originated from greylag geese.To explain the origin and demographic history of geese,we selected 14 goose breeds from Europe and China and wild populations of swan and greylag geese,and whole genome sequencing data were obtained for 74 samples.Results Population structure analysis and phylogenetic trees showed that the wild ancestor of Chinese domestic geese,except for Yili,is the swan geese,and the wild ancestor of Chinese Yili and European domestic geese is greylag geese.Analysis of the demographic history suggests that the domestication of Chinese geese occurred~3499 years ago and that of the European geese occurred~7552 years ago.Furthermore,gene flow was observed between domestic geese and their wild ancestors.Analysis of introgression showed that Yili geese had been introgressed by Chinese domestic geese,and the body size of Yili geese may be influenced by introgression events of some growthrelated genes,including IGF-1.Conclusions Our study provides evidence for the origin of geese at the genome-wide level and advances the understanding of the history of goose domestication and the traits affected by introgression events. | Junhui Wen Haiying Li Huie Wang Jincheng Yu Tao Zhu Jinxin Zhang Xinghua Li Zhihua Jiang Zhonghua Ning Lujiang Qu | 2023 | Journal of Animal Science and Biotechnology2023，14，3： | 0 |
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