PpNAC187 Enhances Lignin Synthesis in 'Whangkeumbae' Pear (Pyrus pyrifolia) 'Hard-End' Fruit.

ABSTRACT: A disorder in pears that is known as 'hard-end' fruit affects the appearance, edible quality, and market value of pear fruit. RNA-Seq was carried out on the calyx end of 'Whangkeumbae' pear fruit with and without the hard-end symptom to explore the mechanism underlying the formation of hard-end. The results indicated that the genes in the phenylpropanoid pathway affecting lignification were up-regulated in hard-end fruit. An analysis of differentially expressed genes (DEGs) identified three NAC transcription factors, and RT-qPCR analysis of PpNAC138, PpNAC186, and PpNAC187 confirmed that PpNAC187 gene expression was correlated with the hard-end disorder in pear fruit. A transient increase in PpNAC187 was observed in the calyx end of 'Whangkeumbae' fruit w

SUBMITTER: Li M 

PROVIDER: S-EPMC6930614 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature