Fig. 5From: Genome-wide analysis of polygalacturonase gene family from pear genome and identification of the member involved in pear softeningImpact of transient silence of PbrPG6 expression on PG activity and firmness of pear fruit. a Expression profile of PbrPG6 after transient silence of PbrPG6 expression. b Impact of transient silence of PbrPG6 expression on PG activity. c Impact of transient silence of PbrPG6 expression on cortex firmness. ‘Housui’ fruit were infiltrated with pTRV2:PbrPG6 & pTRV1, and then stored at 25 °C before analysis. The unconstructed pTRV2 vector, which was co-injected with pTRV1, was used as control. Data represented the mean ± SD of three biological replicates. The expression level of PbrPG6 in control fruit was set as 1.0. Vertical bars labeled with different small letters indicated significant difference between samples at p < 0.05 level using Duncan’s multiple range testBack to article page