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Table 4 Mutations in the coding regions of AaHK1 from Alternaria alternata ProHR and ProS isolates

From: Biochemical and molecular characterization of Alternaria alternata isolates highly resistant to procymidone from broccoli and cabbage

Isolate

Origin

Nucleotide variation in coding region

Mutation in amino acid sequence

Structural domain

C10, C28

Cabbage /ProS

WT (N)

N

N

B16, B21

Broccoli /ProS

WT (N)

N

N

C5

Cabbage /ProHR

CCC to GCC at nt280

P94A

Between N-terminus and HAMP1

C13

Cabbage /ProHR

552-bp deletion between nt791 – nt1344

A deletion of 184-AA residues

Between HAMP 1 and HAMP 3

C40

Cabbage /ProHR

8-bp insertion between nt3294 – nt3295

Frameshift mutation leading to premature termination at the codon1204

Rec

B30

Broccoli /ProHR

GTG to CTG at nt1834

V612L

HAMP5

B88, B108

Broccoli /ProHR

GAG to AAG at nt2122

E708K

HAMP6

B35

Broccoli /ProHR

CAG to TAG at nt2770

Q924STOP

HATPase_c

B46

Broccoli /ProHR

381-bp deletion between nt1707 – nt2089

A deletion of 127-AA residues

Between HAMP4 and HAMP6

B53

Broccoli /ProHR

2-bp deletion between nt3249 – nt3252

Frameshift mutation leading to premature termination at the codon1104

Between HATPase_c and Rec

B102

Broccoli /ProHR

N

N

N

  1. ProS, procymidone-sensitive isolates; ProHR, high-level procymidone-resistant isolates; WT, wild type; nt, nucleotide; N, no mutation