PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8049060-4 1994 In situ hybridization analysis shows that meg1 is expressed at very low levels in leptotene cells and increases as the cells progress through zygotene and pachytene stages. leptotene 82-91 meiosis expressed gene 1 Mus musculus 42-46