Barton C, Iliopoulos CS, Pissis SP, Arhondakis S. Transcriptome activity of isochores during preimplantation process in human and mouse.
FEBS Lett 2016;
590:2297-306. [PMID:
27279593 DOI:
10.1002/1873-3468.12245]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/27/2016] [Accepted: 06/03/2016] [Indexed: 12/17/2022]
Abstract
This work investigates the role of isochores during preimplantation process. Using RNA-seq data from human and mouse preimplantation stages, we created the spatio-temporal transcriptional profiles of the isochores during preimplantation. We found that from early to late stages, GC-rich isochores increase their expression while GC-poor ones decrease it. Network analysis revealed that modules with few coexpressed isochores are GC-poorer than medium-large ones, characterized by an opposite expression as preimplantation advances, decreasing and increasing respectively. Our results reveal a functional contribution of the isochores, supporting the presence of structural-functional interactions during maturation and early-embryonic development.
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