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麻栎基因组范围的 miRNA 分析。

Genome-wide analysis of miRNAs in Carya cathayensis.

机构信息

State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China.

Center for Genomics and Biotechnology; Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology; Ministry of Education Key Laboratory of Genetics, Breeding and Multiple Utilization of Corps; State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops; College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.

出版信息

BMC Plant Biol. 2017 Nov 29;17(1):228. doi: 10.1186/s12870-017-1180-6.

DOI:10.1186/s12870-017-1180-6
PMID:29187147
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5708078/
Abstract

BACKGROUND

MicroRNA (miRNA) plays an important role in plant development regulation. Hickory is an economically important plant in which the amount of flowering determines its production.

RESULTS

Here, 51 conserved miRNAs, which belong to 16 families and 195 novel miRNAs were identified in hickory genome. For each conserved miRNA family, we used sequences from hickory and other plants to construct a phylogenetic tree, which shows that each family has members in hickory. Some of the conserved miRNA families (i.e., miR167 and miR397) have more members in hickory than in other plants because of gene expansion. MiR166 exhibited tandem duplication with three copies being observed. Many members of these conserved miRNA families were detected in hickory flowers, and the expression patterns of target genes were opposite to those of the related miRNAs, indicating that miRNAs may have important functions in floral regulation of hickory.

CONCLUSIONS

Taken together, a comprehensive analysis was conducted to identify miRNAs produced in hickory flower organs, demonstrating functional conservation and diversity of miRNA families among hickory, Arabidopsis, grape, and poplar.

摘要

背景

MicroRNA (miRNA) 在植物发育调控中发挥着重要作用。山核桃是一种经济上重要的植物，其开花量决定了其产量。

结果

在这里，在山核桃基因组中鉴定出 51 个保守 miRNA，它们属于 16 个家族和 195 个新的 miRNA。对于每个保守 miRNA 家族，我们使用来自山核桃和其他植物的序列构建了系统发育树，表明每个家族在山核桃中都有成员。由于基因扩张，一些保守 miRNA 家族（如 miR167 和 miR397）在山核桃中的成员比在其他植物中更多。miR166 表现出串联重复，观察到三个拷贝。在山核桃花中检测到许多这些保守 miRNA 家族的成员，并且靶基因的表达模式与相关 miRNA 相反，表明 miRNA 可能在山核桃的花调控中具有重要功能。

结论

总之，对山核桃花器官产生的 miRNAs 进行了全面分析，证明了 miRNA 家族在山核桃、拟南芥、葡萄和杨树之间的功能保守性和多样性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/77e7b01a4501/12870_2017_1180_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/29f05d8df953/12870_2017_1180_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/43313417e483/12870_2017_1180_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/b9cf003d9239/12870_2017_1180_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/77e7b01a4501/12870_2017_1180_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/29f05d8df953/12870_2017_1180_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/43313417e483/12870_2017_1180_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/b9cf003d9239/12870_2017_1180_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c63a/5708078/77e7b01a4501/12870_2017_1180_Fig4_HTML.jpg

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