Assessment of shared alleles in drought-associated candidate genes among southern California white oak species (Quercus sect. Quercus)
文献类型：期刊论文
| 作者 | Oney-Birol,Signem2; Fitz-Gibbon,Sorel1; Chen,Jin-Ming5; Gugger,Paul F.4,6; Sork,Victoria L.3,4 |
| 刊名 | BMC Genetics
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 19期号:1 |
| 关键词 | Adaptation Candidate genes Drought stress Hybridization Introgression RNAseq Transcriptome Quercus spp. |
| ISSN号 | 1471-2156 |
| DOI | 10.1186/s12863-018-0677-9 |
| 英文摘要 | AbstractBackgroundHybridization and introgression are common phenomena among oak species. These processes can be beneficial by introducing favorable genetic variants across species (adaptive introgression). Given that drought is an important stress, impacting physiological and morphological variation and limiting distributions, our goal was to identify drought-related genes that might exhibit patterns of introgression influenced by natural selection. Using RNAseq, we sequenced whole transcriptomes of 24 individuals from three oaks in southern California: (Quercus engelmannii, Quercus berberidifolia, Quercus cornelius-mulleri) and identified genetic variants to estimate admixture rates of all variants and those in drought genes.ResultsWe found 398,042 variants across all loci and 4352 variants in 139 drought candidate genes. STRUCTURE analysis of all variants revealed the majority of our samples were assignable to a single species, but with several highly admixed individuals. When using drought-associated variants, the same individuals exhibited less admixture and their allele frequencies were more polarized between Engelmann and scrub oaks than when using the total gene set. These findings are consistent with the hypothesis that selection may act differently on functional genes, such as drought-associated genes, and point to candidate genes that are suggestive of divergent selection among species maintaining adaptive differences. For example, the drought genes that showed the strongest bias against engelmannii-fixed oak variants in scrub oaks were related to sugar transporter, coumarate-coA ligases, glutathione S-conjugation, and stress response.ConclusionThis pilot study illustrates that whole transcriptomes of individuals will provide useful data for identifying functional genes that contribute to adaptive divergence among hybridizing species. |
| 语种 | 英语 |
| WOS记录号 | BMC:10.1186/S12863-018-0677-9 |
| 出版者 | BioMed Central |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1469]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Oney-Birol,Signem |
| 作者单位 | 1. 2. 3. 4. 5. 6. |
| 推荐引用方式 GB/T 7714 | Oney-Birol,Signem,Fitz-Gibbon,Sorel,Chen,Jin-Ming,et al. Assessment of shared alleles in drought-associated candidate genes among southern California white oak species (Quercus sect. Quercus)[J]. BMC Genetics,2018,19(1). |
| APA | Oney-Birol,Signem,Fitz-Gibbon,Sorel,Chen,Jin-Ming,Gugger,Paul F.,&Sork,Victoria L..(2018).Assessment of shared alleles in drought-associated candidate genes among southern California white oak species (Quercus sect. Quercus).BMC Genetics,19(1). |
| MLA | Oney-Birol,Signem,et al."Assessment of shared alleles in drought-associated candidate genes among southern California white oak species (Quercus sect. Quercus)".BMC Genetics 19.1(2018). |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。