Genome-wide identification and expression profiling analysis of receptor-like cytoplasmic kinase family gene in Pyrus bretschneideri reveals the role of PbrRLCK99 in black spot resistance

Danni Yang

doi:10.1016/j.plantsci.2026.113277

Genome-wide identification and expression profiling analysis of receptor-like cytoplasmic kinase family gene in Pyrus bretschneideri reveals the role of PbrRLCK99 in black spot resistance

2026-06-15

0

PRE

AI

D

Danni Yang

K

Keke Zhao

J

Jing Fang

J

Jiewei Guan

X

Xiaoyun Zhou

Z

Zheng Liu

S

Shaoling Zhang

X

Xiaosan Huang *

DOI：10.1016/j.plantsci.2026.113277

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• This is the first report to systematically characterize the PbrRLCK family and functionally link a specific member, PbrRLCK99, to disease resistance against the fungal pathogen Alternaria alternata. • PbrRLCK99, which is localized to the plasma membrane, acts as a positive regulator against A. alternata. Silencing of PbrRLCK99 suppresses resistance by reducing the activities of defense enzymes. • Meanwhile, overexpressing PbrRLCK99 boosts resistance by elevating the expression of salicylic acid (SA) marker genes and enhancing the activities of defense enzymes.

Genome-wide identification and expression profiling analysis of receptor-like cytoplasmic kinase family gene in Pyrus bretschneideri reveals the role of PbrRLCK99 in black spot resistance

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