Genome-wide analysis of long non-coding RNAs at early stage of skin pigmentation in goats (Capra hircus)

BMC Genomics

Research Article

Lei Chen¹  Peng Zhou²  Jing Jiang²  Hangxing Ren²  Gaofu Wang²  Liangjia Liu²  Xiaoyan Sun²  Jinhong Zhao²  Nianfu Li³ 

[1] Chongqing Academy of Animal Sciences, 402460, Chongqing, China;Chongqing Academy of Animal Sciences, 402460, Chongqing, China;Chongqing Engineering Research Center for Goats, 402460, Chongqing, China;Chongqing Academy of Animal Sciences, 402460, Chongqing, China;Youyang Animal Husbandry Bureau, 409800, Chongqing, China;

关键词: Skin;    lncRNA;    Goat;    Pigmentation;    Transcriptome;   

DOI  :  10.1186/s12864-016-2365-3

 received in 2015-07-01, accepted in 2016-01-05,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundLong noncoding RNAs (lncRNAs) play roles in almost all biological processes; however, their function and profile in skin development and pigmentation is less understood. In addition, because lncRNAs are species-specific, their function in goats has not been established.ResultWe systematically identified lncRNAs in 100-day-old fetal skin by deep RNA-sequencing using the Youzhou dark goat (dark skin) and Yudong white goat (white skin) as a model of skin pigmentation. A total of 841,895,634 clean reads were obtained from six libraries (samples). We identified 1336 specific lncRNAs in fetal skin that belonged to three subtypes, including 999 intergenic lncRNAs (lincRNAs), 218 anti-sense lncRNAs, and 119 intronic lncRNAs. Our results demonstrated significant differences in gene architecture and expression among the three lncRNA subtypes, particularly in terms of density and position bias of transpose elements near the transcription start site. We also investigated the impact of lncRNAs on its target genes in cis and trans, indicating that these lncRNAs have a strict tissue specificity and functional conservation during skin development and pigmentation.ConclusionThe present study provides a resource for lncRNA studies in diseases involved in pigmentation and skin development. It expands our knowledge about lncRNA biology as well as contributes to the annotation of the goat genome.

【 授权许可】

CC BY   
© Ren et al. 2016