passages.id: split_8_test_3423_passage
passages.type: progene_text
passages.text: Expression of two Arabidopsis ( Arabidopsis thaliana ) apyrase ( nucleoside triphosphate - diphosphohydrolase ) genes with high similarity , APY1 and APY2 , was analyzed during seedling development and under different light treatments using beta-glucuronidase fusion constructs with the promoters of both genes .