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Table 4 Disease reaction patterns of the introgression lines IR126181 (Pi2/9-A15), IR126183 (Pi2/9-A42), IR126184 (Pi2/9-A53), IRBL-z5[CO] (Pi2), IRBL-zt[CO] (Piz-t) and IRBL-9W (Pi9) and two susceptible lines, CO39 and Lijiangxintuanheigu (LTH), against 34 M. oryzae isolatesa

From: Identification of resistant germplasm containing novel resistance genes at or tightly linked to the Pi2/9 locus conferring broad-spectrum resistance against rice blast

Isolate

CO39

New introgression linesb

Pi2/9 known allele introgression linesc

LTH

IR126181

(Pi2/9-A15)

IR126183

(Pi2/9-A42)

IR126184

(Pi2/9-A53)

IRBL-z5[CO] (Pi2)

IRBL-zt[CO]

(Piz-t)

IRBL-9 W (Pi9)

BN111

S

R

R

R

R

S

R

S

BN209

S

R

NA

R

S

S

R

S

CA41

S

R

R

R

R

R

R

S

CA89

S

R

PR

R

R

S

R

S

IK81–25

S

R

R

R

R

S

R

S

JMB8401

S

R

R

R

R

S

R

S

JMB840610

S

R

S

R

R

R

R

S

M36–1–3-10-1

S

R

R

R

R

R

R

S

M39–1–3-8-1

S

R

R

R

R

R

R

S

M64–1–3-9-1

S

R

S

R

R

R

R

S

PO6–6

S

R

R

R

R

S

R

S

V86010

S

R

S

R

R

R

R

S

5008–3

S

R

R

R

R

S

R

S

5092–3

S

R

R

R

R

S

R

S

5167–1

S

R

NA

R

S

R

R

S

6161–1

S

R

R

R

R

S

R

S

9126–1

S

R

R

R

R

S

R

S

9244–3

S

R

R

R

R

S

R

S

9406–3

S

R

R

R

R

S

R

S

9475–1-3

S

R

R

R

R

S

R

S

9482–1-3

S

R

S

R

R

R

R

S

9497–3

S

R

PR

R

R

S

R

S

IBN008

S

R

R

R

R

S

R

S

IBN028

S

R

R

R

R

S

R

S

MO15–1

S

R

R

R

R

S

R

S

MO15–6

S

R

PR

R

R

S

R

S

MO15–19

S

R

R

R

R

R

R

S

MO15–21

S

R

R

R

R

S

R

S

MO15–24

S

R

R

R

R

R

R

S

MO15–27

S

R

PR

R

R

S

R

S

MO15–110

S

R

R

R

R

S

R

S

MO15–125

S

R

R

R

R

R

R

S

MO15–226

S

R

R

R

R

S

R

S

MO15–244

S

R

R

R

R

S

R

S

  1. aR indicates resistance, PR indicates partial resistance, S indicates susceptibility and NA indicates not available. Resistance evaluations are based on the 0–5 scale of the Standard Evaluation System. bThe three new introgression lines are all in the CO39 genetic background. cIRBL-z5[CO] and IRBL-zt[CO] are introgression lines of Pi2 and Piz-t in the genetic background of CO39; IRBL9-W is the introgression line of the Pi9 gene in the genetic background of LTH