The expression differences of a multibranching mutant (MB)of malus spectabilis"bly114"and its WT plant

in order to investigate the expression differences of WT and its multibranching mutant of Malus spectabilis ‘Bly114’,the young leaves ,new shoot stem and flower (not include petals，only receptacles)were sampled each with 3 replicates.MB is identified to be a strigolactone insensitive mutant and has high contents of cytokinin and abscisic acid. A more-branching mutant (MB) and its wild-type (WT) of ‘Bly114’ apple (Malus spectabilis) were obtained from apple germplasm nursery of the Institute of Agricultural Science of Qingdao (36◦ 240 N, 120◦ 580 E), China. The mutant was originally selected from a branch exhibiting natural variation on a WT plant. The scions of WT, MB, weregrafted onto 2-year-old shoots of wild apple (Malus robusta) every year from 2014 to 2016. It must be stated that the growth and phenotypes of each genotype-maintained consistency both in Yangling and Qingdao. The grafted plants were cultivated in a field at Yangling (34◦ 520 N, 108◦ 700 E), Shaanxi, China, with periodic water, fertilizer, and pest management treatments. For details, nitrogenous fertilizer was applied at the end of February, and plant nutrient solution containing large and trace elements was applied twice every 15 days in May; imidacloprid was applied to controlled aphid every 10 to 15 days from March to May, and pyrethroids were applied to control leaf pests from May to July.