Identification and Functional Analysis of miRNAs Involved in the Pigment Gland Formation in Cotton
会议名称：《中国农学会棉花分会2018年年会》
会议日期：2018年
摘 要：Cotton is an important economic crop which could provide natural fiber,plant oil and ***,existence of pigment gland and toxic gossypol inhibit full use of cottonseed ***(miRNAs) play important roles in post-transcription,but the role of miRNAs in pigment gland formation remains ***,4 pairs of near-isogenic lines(NILs) consist of 3 glanded and 4 glandless cotton lines were used for small RNA *** total of 58 known and 58 novel miRNAs were *** them,10 and 6 miRNAs showed different expression between dominant glandless and glanded cotton,recessive glandless and glanded cotton,*** miRNAs potentially target 73 and 90 genes,respectively,including phytohormone-related genes and transcription factors,such as ARF,ERF,RGA and ***,two novel miRNAs Ghnmir1/Ghnmir9 and their targets bHLH-MYC transcription factors were differentially expressed between all glanded and glandless cotton,implying they probably take part in pigment gland *** on Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) analysis,plant hormone signal transduction,MAPK signaling pathway and phagosome may be relative to regulation of glandless *** study provides evidence for understanding miRNA potential regulatory roles in pigment gland development,which is helpful to clarify the molecular mechanisms of pigment gland formation and future low-gossypol cotton breeding.