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  • Title: Major intrinsic proteins repertoire of Morus notabilis and their expression profiles in different species.
    Author: Baranwal VK, Khurana P.
    Journal: Plant Physiol Biochem; 2017 Feb; 111():304-317. PubMed ID: 27988481.
    Abstract:
    Leaf moisture content in Morus is a significant trait regulating the yield of silk production. Studies have shown that fresh leaves or leaves with high water content are preferably eaten by silk worm. Water and certain other molecules transport in plants is known to be regulated by aquaporins or Major Intrinsic Proteins (MIPs). Members of the MIP gene family have also been implicated in plant development and stress responsiveness. To understand how members of MIP gene family are regulated and evolved, we carried out an extensive analysis of the gene family. We identified a total of 36 non redundant MIPs in Morus notabilis genome, belonging to five subfamilies PIPs, TIPs, NIPs, XIPs and SIPs) have been identified. We performed a Gene ontology (GO) term enrichment analysis and looked at distribution of cis elements in their 2K upstream regulatory region to reveal their putative roles in various stresses and developmental aspects. Expression analysis in developmental stages revealed their tissue preferential expression pattern in diverse vegetative and reproductive tissues. Comparison of expression profiles in the leaves of three species including Morus notabilis, Morus serrata and Morus laevigata led to identification of differential expression in these species. In all, this study elaborates a basic insight into the structure, function and evolutionary analysis of MIP gene family in Morus which is hitherto unavailable. Our analysis will provide a ready reference to the mulberry research community involved in the Morus improvement program.
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