Article Cloning, Molecular Databases, Genetic Gene Expression Profiling Gene Expression Regulation, Developmental Leishmania major Leishmania sp. life stages and in vitro passages Northern blotting Polyadenylation Protozoan Proteins RNA Splicing RNA sequence RNA splicing RNA transcription Sequence Analysis, RNA TERRA R-loops TERRA noncoding RNA Telomere Telomere transcription Transcription Factors bioinformatics chromosome controlled study developmental stage gene expression gene expression profiling gene expression regulation gene library genetic database genetics