Tomato Mi-gene Resistance-Breaking Populations of Meloidogyne Show Variable Reproduction on Susceptible and Resistant Crop Cultivars

Ploeg, A. T.; Stoddard, C. S.; Turini, T. A.; Nunez, J. J.; Miyao, E. M.; Subbotin, S. A.

Tomato Mi-gene Resistance-Breaking Populations of Meloidogyne Show Variable Reproduction on Susceptible and Resistant Crop Cultivars

Journal of Nematology

Volume 55 (2023): Issue 1 (February 2023)

By:

A. T. Ploeg, C. S. Stoddard, T. A. Turini, J. J. Nunez, E. M. Miyao and S. A. Subbotin

Open Access

|Oct 2023

Figures & Tables

Origin of 16 field-collected Mi-gene resistant processing tomato root samples used for nematode isolation_

Nematode population number	Origin County	Field-grown tomato cultivar
1	Yolo	Heinz5508
2	San Joaquin	SUN6366
3	Yolo	Heinz5508
4	Kern	CXD187
5	Yolo	Heinz5508
6	Kern	Heinz5208
7	Kern	Heinz5208
8	Fresno	UG19406
9	Fresno	SUN6366
10	Fresno	SUN6366
11	Yolo	Heinz5508
12	Yolo	Heinz5508
13	Solano	Heinz5508
14	Colusa	N6416
15	Sutter	H1310
16	Colusa	HM3888

Average (n=10) reproduction factor (RF) and root galling index (scale 0 – 10 = 0 = no galling and 10 = 100% of root system galled) on two different pepper cultivars inoculated with six root-knot nematode (Meloidogyne) populations (1,000 second-stage juveniles/pot) in a greenhouse pot trial_

	Plant cultivar

	Tomato Celebrity^a (R^b)	Pepper Baron (S^b)	Pepper Carolina Wonder (R^b)
Reproduction factor (RF)
Nematode population^c
Mi-3 control	0.3	17.5 a^d	0.0 a^d
Resistance-breaking
3 (Mi)	22.2	21.7 a	0.0 a
4 (Mj)	27.6	0.0 b	0.1 a
10 (Mi)	25.5	15.9 a	0.0 a
11 (Mi)	35.8	17.6 a	0.0 a
12 (Mi)	29.1	27.0 a	0.0 a
Galling index
Nematode population^c
Mi-3 control	0.3	3.5 cd^e	0.0 b^e
Resistance-breaking
3 (Mi)	7.3	5.2 ab	0.0 b
4 (Mj)	5.8	0.0 e	0.1 ab
10 (Mi)	6.5	4.5 bc	0.0 b
11 (Mi)	6.7	3.1 d	0.0 b
12 (Mi)	7.0	6.0 a	0.3 a

Average (n=10) reproduction factor (RF) and root galling index (scale 0 – 10 = 0 = no galling and 10 = 100% of root system galled) on two sweetpotato and two green bean cultivars inoculated with six root-knot nematode (Meloidogyne) populations (1,000 second-stage juveniles/pot) in a greenhouse pot trial_

	Crop cultivar

	Tomato Celebrity^a (R²)	Sweetpotato O’Henry (S²)	Sweetpotato Bonita (R²)	Green bean BlueLake (S²)	Green bean Nemasnap (R²)
Reproduction factor (RF)
Nematode population^c
Mi-3 control	0.4	30.4 a^d	0.7 b^d	42.9 a^d	0.1 c^d
Resistance-breaking
3 (Mi)	55.2	52.1 a	5.2 a	47.1 a	0.1 c
4 (Mj)	35.7	49.6 a	4.1 a	52.5 a	6.6 a
10 (Mi)	62.3	28.4 a	2.8 a	45.8 a	0.1 c
11 (Mi)	61.4	54.4 a	3.2 a	37.2 a	0.3 bc
12 (Mi)	48.9	47.3 a	3.7 a	39.9 a	0.4 b
Galling index
Nematode population^c
Mi-3 control	0.2	5.1 a^e	0.6 a^e	6.2 a^e	0.3 b^e
Resistance-breaking
3 (Mi)	6.0	6.1 a	1.1 a	5.7 a	0.0 b
4 (Mj)	5.3	6.2 a	0.9 a	6.0 a	4.8 a
10 (Mi)	5.8	5.0 a	1.2 a	5.9 a	0.5 b
11 (Mi)	6.5	5.1 a	1.2 a	5.3 a	0.2 b
12 (Mi)	5.9	5.6 a	1.5 a	5.6 a	0.2 b

Average (n=10) reproduction factor (RF) and root galling index (scale 0 – 10 = 0 = no galling and 10 = 100% of root system galled) on two cotton and two cowpea cultivars inoculated with six root-knot nematode (Meloidogyne) populations (1,000 second-stage juveniles/pot) in a greenhouse pot trial_

	Crop ultivar

	Tomato Celebrity^a (R^b)	Cotton SJ2 (S^b)	Cotton DP 1474NR B2XF (R^b)	Cowpea CB46 Null-1 (S^b)	Cowpea CB46 (R^b)
Reproduction factor (RF)
Nematode population^c
Mi-3 control	0.5	14.5 a^d	0.1 bc^d	205.0 a^d	0.1 b^d
Resistance-breaking
3 (Mi)	111.4	0.1 c	0.0 d	16.2 b	0.9 b
4 (Mj)	88.8	1.4 b	0.6 ab	91.1 a	10.4 a
10 (Mi)	84.2	0.0 c	0.3 bc	76.9 a	0.1 b
11 (Mi)	128.9	0.1 c	0.1 cd	143.7 a	0.2 b
12 (Mi)	85.2	19.7 a	2.0 a	93.8 a	11.4 a
Galling index
Nematode population^c
Mi-3 control	0.4	3.0 a^e	0.5 ab^e	6.8 a^e	0.1 b^e
Resistance-breaking
3 (Mi)	7.9	0.1 c	0.0 b	6.0 a	0.9 b
4 (Mj)	7.8	1.6 b	0.6 ab	6.1 a	2.5 a
10 (Mi)	6.9	0.3 c	0.4 ab	6.7 a	0.4 b
11 (Mi)	7.4	0.2 c	0.1 ab	7.2 a	0.6 b
12 (Mi)	8.0	2.6 ab	0.9 a	5.6 a	2.9 a

Average (n=10) reproduction factor (RF) and galling index (scale 0 – 10 = 0 = no galling and 10 = 100% of root system galled) on seven different tomato cultivars inoculated with five resistance-breaking root-knot nematode (Meloidogyne) populations (1,000 second-stage juveniles/pot) and an avirulent M_ incognita race 3 population in a greenhouse pot trial_

	Tomato cultivar

	Daniela (S^a)	Celebrity (R^a)	H5608 (R^a)	DRI319 (R^a)	N6366 (R^a)	HM3887 (R^a)	H8504 (R^a)
Reproduction factor (RF)
Nematode population^b
Mi-3 control	8.5	0.1	0.5	0.2	0.1	0.2	0.2
Resistance-breaking							average
3 (Mi)	4.1	3.7	11.8	12.9	4.9	5.6	2.9	6.6	A^d
4 (Mj)	3.1	1.6	9.6	7.9	2.0	2.4	1.0	3.9	B
10 (Mi)	4.4	6.8	5.1	10.7	8.7	3.1	4.2	6.1	A
11 (Mi)	6.6	4.7	17.0	11.1	4.3	6.1	4.1	7.7	A
12 (Mi)	2.5	3.5	4.1	3.1	4.2	4.7	3.8	3.7	B
average	4.1 b^c	4.0 b	9.5 a	9.1 a	4.8 ab	4.4 b	3.2 b
Galling index
Nematode population^b
Mi-3 control	6.2	0.7	0.7	0.3	0.5	0.4	0.4
Resistance-breaking							average
3 (Mi)	6.4	5.5	7.0	6.8	6.8	6.6	5.6	6.4	A^d
4 (Mj)	4.0	5.0	6.0	6.2	6.3	6.2	4.9	5.5	BC
10 (Mi)	5.5	6.2	7.1	6.6	6.5	6.4	6.0	6.3	AB
11 (Mi)	6.1	4.9	6.4	6.9	6.5	7.4	6.4	6.4	A
12 (Mi)	4.3	3.5	4.8	5.0	4.3	5.4	4.3	4.5	C
average	5.3 ab^c	5.0 b	6.3 a	6.3 a	6.1 ab	6.4 a	5.4 ab

DOI: https://doi.org/10.2478/jofnem-2023-0043 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X

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Language: English

Submitted on: May 10, 2023

Published on: Oct 16, 2023

Published by: Society of Nematologists, Inc.

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

cotton,

pepper,

Related subjects:

© 2023 A. T. Ploeg, C. S. Stoddard, T. A. Turini, J. J. Nunez, E. M. Miyao, S. A. Subbotin, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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