Statistical analysis of the genomic distribution and correlation of regulatory elements in the ENCODE regions

captainclaw submitted, created time 1 year 6 months (www.genome.org)

"Researchers demonstrate, in fact, that regulatory elements are associated with the location of known genes. Further examination on a local, single-gene scale shows an enrichment of regulatory elements near both transcription start and end sites. This results indicate that overall these elements are clustered into regulatory rich "islands" and poor "deserts." Next, they examine how consistent the nonuniform distribution is between different transcription factors

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An Ancient Mechanism Controls the Development of Cells with a Rooting Function in Land Plants

addict submitted, created time 1 year 7 months (www.sciencemag.org)

"Root hairs and rhizoids are cells with rooting functions in land plants. We describe two basic helix-loop-helix transcription factors that control root hair development in the sporophyte (2n) of the angiosperm Arabidopsis thaliana and rhizoid development in the gametophytes (n) of the bryophyte Physcomitrella patens. The phylogeny of land plants supports the hypothesis that early land plants were bryophyte-like and possessed a dominant gametophyte and later the sporophyte rose to dominance

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