<i>Microcyclus ulei</i> races in Brazil

Bevenuto, João Alberto Zago; Passos, José Raimundo de Souza; Furtado, Edson Luiz

doi:10.1590/0100-5405/172339

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ARTICLE • Summa Phytopathol. 43 (4) • Oct-Dec 2017 • https://doi.org/10.1590/0100-5405/172339 copy

Microcyclus ulei races in Brazil

Raças fisiológicas de Microcyclus ulei no Brasil

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The fungus Microcyclus ulei is the causative agent of leaf blight in rubber trees, which is one of the most important diseases affecting this crop, since it causes intense defoliation. Several races of this pathogen have been described in Brazil based on a series of diverse differential clones. According to the reactions of 11 differential clones already reported in the literature (MDF 180, Fx 3844, Fx 985, Fx 4098, Fx 2261, Fx 2804, Fx 3899, IAN 6158, IAN 3087, IAN 717 and PA 31), containing the species Hevea brasiliensis. Hevea benthamiana and Hevea pauciflora, a cluster analysis of the binary data referring to virulence of this disease was performed by using the Jaccard method. The cluster analysis was fitted according to the centroid method. Results indicated the existence of 53 different races of this pathogen in Brazil.

Keywords
Rubber tree; leaf blight disease; differential clones; multivariate analysis

Note	Lesion type	Lesion size	Spores (conidia/cm² damaged surface)		Adapted Grade (binary data)
0	Chlorotic /necrotic spots	< 1 mm	Without spores		0 Resistant
1	Chlorotic /necrotic spots	< 1 mm
2	Lesions with necrotic center	1 to 2 mm
3		> 2 mm
4		> 2 mm	Up to 1,000	With spores	1 Susceptible
5		< 3 mm	from 1,000 to 30,000
6		> 3 mm or 1 to 2 mm	from 1,000 to 30,000 or 30,000 to 70,000
7		2 to 2.5 cm²	70,000 a 400,000
8		2 to 2.5 cm²	> 400,000
9		> 2.5 cm²	> 400,000
10		> 2.5 cm²	> 400,000 (on both sides of leaflets)

Differential clones	H. brasiliensis					H. benthamiana					H. pauciflora
\
Isolates	MDF 180	Fx 3844	Fx 985	Fx 4098	Fx 2261	Fx 2804	Fx 3899	IAN 6158	IAN 3087	IAN 717	PA 31
MU_02	1	0	0	1	1	1	1	0	1	1	*
MU_03	1	0	0	1	1	1	1	0	1	1	*
MU_04	0	1	0	1	1	1	1	1	1	1	*
MU_05	1	1	0	1	1	0	1	1	1	1	*
MU_06	1	1	1	1	1	0	0	1	0	0	*

Differential clones	H. brasiliensis					H. benthamiana					H. pauciflora
\
Isolates	MDF 180	Fx 3844	Fx 985	Fx 4098	Fx 2261	Fx 2804	Fx 3899	IAN 6158	IAN 3087	IAN 717	PA 31
2_CHEE	*	0	0	0	0	1	1	*	*	*	*
3_CHEE	*	0	0	0	1	0	0	*	*	*	*
4_CHEE	*	*	*	1	1	0	*	*	*	*	*
6_CHEE	*	1	1	1	0	0	*	*	*	*	*
7_CHEE	*	0	0	0	0	1	0	*	*	*	*
8_CHEE	*	1	1	*	0	0	*	*	*	*	*
UNA_NTVJ_16	0	1	0	1	1	1	1	1	1	1	0
LAB_NTVJ_15	0	1	0	0	1	1	1	1	1	1	0
JUC_NTVJ_14	0	0	0	1	0	1	1	1	1	1	1
ROS_NTVJ_13	0	0	0	0	1	1	1	*	1	1	1
BV_NTVJ_12	0	0	0	0	1	1	1	1	1	1	*
ITB_NTVJ_11	0	1	0	0	0	0	1	1	1	1	*
CNP_NTVJ_9	0	0	0	*	1	0	0	1	0	0	0
EIR_NTVJ_5	1	1	1	1	1	0	0	*	1	*	0
HM_NTVJ_10	*	1	0	*	1	1	1	0	1	*	0
GV_NTVJ_6	0	1	0	*	1	0	0	0	1	*	*
RB_NTVJ_7	1	1	1	0	1	0	0	*	1	0	0
BEN_NTVJ_4	1	1	1	1	1	0	0	1	1	*	*
REG_NTVJ_8	1	1	0	1	1	0	1	1	1	*	0
MZ_NTVJ_2	1	1	1	1	1	0	0	0	*	*	*
ARE_NTVJ_3	1	1	1	1	1	0	0	1	0	1	0
FTP 22_MATTOS	1	*	0	0	0	0	0	0	0	1	1
FTP 33_MATTOS	1	*	0	0	0	0	0	0	0	1	1
FTP 7_MATTOS	1	*	1	1	1	0	1	0	1	0	0
FTP 5_MATTOS	1	*	1	1	1	0	1	0	1	1	1
FTP 20_MATTOS	1	*	1	0	0	0	0	1	1	0	1
PMB 6_MATTOS	1	*	0	1	0	1	0	1	1	1	1
FTP 44_MATTOS	1	*	0	1	0	1	0	1	1	0	1
FTP 58_MATTOS	1	*	0	1	0	0	1	1	1	1	1
FTP 14_MATTOS	1	*	0	1	0	0	0	0	1	*	0
FTP 11_MATTOS	1	*	0	1	1	0	1	0	0	1	0
FTP 18_MATTOS	1	*	0	1	1	0	0	1	1	1	*
PMB 13_MATTOS	1	*	0	1	1	0	1	1	0	1	0
FTP 3 _MATTOS	1	*	0	1	1	0	1	0	1	1	1
PMB 11_MATTOS	1	*	0	0	0	1	1	1	1	1	0
FTP 23_MATTOS	1	*	0	1	1	1	0	1	1	1	1
PMB 7_MATTOS	1	*	1	1	1	1	0	0	1	1	1
PMB 14_MATTOS	1	*	1	0	0	1	0	1	1	1	1
FTP 52_MATTOS	1	*	1	0	1	1	0	0	0	1	1
FTP 47_MATTOS	1	*	1	1	1	0	0	1	1	1	1
PMB 1_MATTOS	1	*	1	1	1	0	0	0	1	1	0
FTP 21_MATTOS	1	*	1	1	1	0	0	0	1	1	1
PMB 4_MATTOS	1	*	1	1	1	0	0	0	1	1	1
FTP 39_MATTOS	1	*	0	0	1	1	1	1	1	0	0
FTP 65_MATTOS	1	*	0	0	1	1	1	1	1	0	0
FTP 66_MATTOS	1	*	0	0	1	1	1	1	1	0	0
PMB 10_MATTOS	1	*	0	0	1	1	1	1	1	0	0
PMB 12_MATTOS	1	*	0	0	1	1	1	1	1	1	1
FTP 55_MATTOS	1	*	0	1	0	1	1	1	1	1	0
PMB 2_MATTOS	1	*	0	1	0	1	1	1	1	1	0
PMB 3_MATTOS	1	*	0	1	0	1	1	1	1	1	0
FTP 19_MATTOS	1	*	1	1	0	0	0	0	1	0	1
FTP 38_MATTOS	1	*	1	1	0	0	0	1	1	1	1
FTP 35_MATTOS	1	*	1	1	0	0	1	1	0	1	1
FTP 50_MATTOS	1	*	1	1	0	0	1	1	1	1	1
FTP 45_MATTOS	1	*	1	1	0	1	1	1	1	1	0
PMB 16_MATTOS	1	*	1	1	0	1	1	1	1	1	1
FTP 73_MATTOS	1	*	0	1	1	1	1	1	1	1	0
PMB 9_MATTOS	1	*	0	1	1	1	1	1	1	1	0
PMB 5_MATTOS	1	*	0	1	1	1	1	1	1	1	1
FTP 8_MATTOS	1	*	1	1	1	1	0	1	1	1	1
FTP 29_MATTOS	1	*	1	1	1	1	0	1	1	1	1
PMB 8_MATTOS	1	*	1	1	1	1	0	1	1	1	1
PMB 15_MATTOS	1	*	1	1	1	1	0	1	1	1	1
PMB 24_MATTOS	1	*	1	1	1	1	1	1	1	1	0
FTP 13_MATTOS	1	*	1	1	1	1	1	1	1	1	1
FTP 17_MATTOS	1	*	1	0	1	1	1	1	1	1	0
FTP 28_MATTOS	1	*	1	0	*	1	1	1	1	1	0
FTP 2_MATTOS	1	*	1	1	1	0	1	1	1	1	1
FTP 4_MATTOS	1	*	1	1	1	0	1	1	1	1	1
FTP 6_MATTOS	1	*	1	1	1	0	1	1	1	1	1

Differential clones	H. brasiliensis					H. benthamiana					H. pauciflora	Races
\
Isolates	MDF 180	Fx 3844	Fx 985	Fx 4098	Fx 2261	Fx 2804	Fx 3899	IAN 6158	IAN 3087	IAN 717	PA 31
HM1_NTVJ_1	*	0	0	0	0	0	0	0	0	*	*
1_CHEE	*	0	0	0	0	0	0	*	*	*	*	1
5_CHEE	*	0	0	0	0	0	*	*	*	*	*
7_CHEE	*	0	0	0	0	1	0	*	*	*	*	2
3_CHEE	*	0	0	0	1	0	0	*	*	*	*	3
CNP_NTVJ_9	0	0	0	*	1	0	0	1	0	0	0	3
FTP 33_MATTOS	1	*	0	0	0	0	0	0	0	1	1	4
FTP 22_MATTOS	1	*	0	0	0	0	0	0	0	1	1	4
GV_NTVJ_6	0	1	0	*	1	0	0	0	1	*	*	5
FTP 19_MATTOS	1	*	1	1	0	0	0	0	1	0	1
8_CHEE	*	1	1	*	0	0	*	*	*	*	*	6
6_CHEE	*	1	1	1	0	0	*	*	*	*	*
FTP 14_MATTOS	1	*	0	1	0	0	0	0	1	*	0	7
ITB_NTVJ_11	0	1	0	0	0	0	1	1	1	1	*	8
FTP 52_MATTOS	1	*	1	0	1	1	0	0	0	1	1	9
MU_01	1	0	1	1	1	1	0	0	0	0	*	10
PMB 13_MATTOS	1	*	0	1	1	0	1	1	0	1	0	11
FTP 11_MATTOS	1	*	0	1	1	0	1	0	0	1	0	12
FTP 44_MATTOS	1	*	0	1	0	1	0	1	1	0	1	13
PMB 6_MATTOS	1	*	0	1	0	1	0	1	1	1	1	14
PMB 14_MATTOS	1	*	1	0	0	1	0	1	1	1	1	15
FTP 20_MATTOS	1	*	1	0	0	0	0	1	1	0	1	16
FTP 7_MATTOS	1	*	1	1	1	0	1	0	1	0	0	17
RB_NTVJ_7	1	1	1	0	1	0	0	*	1	0	0	18
MU_06	1	1	1	1	1	0	0	1	0	0	*	19
ARE_NTVJ_3	1	1	1	1	1	0	0	1	0	1	0	20
FTP 35_MATTOS	1	*	1	1	0	0	1	1	0	1	1	21
FTP 50_MATTOS	1	*	1	1	0	0	1	1	1	1	1	22
FTP 58_MATTOS	1	*	0	1	0	0	1	1	1	1	1	23
FTP 6_MATTOS	1	*	1	1	1	0	1	1	1	1	1
FTP 4_MATTOS	1	*	1	1	1	0	1	1	1	1	1	24
FTP 2_MATTOS	1	*	1	1	1	0	1	1	1	1	1
FTP 5_MATTOS	1	*	1	1	1	0	1	0	1	1	1	25
FTP 3 _MATTOS	1	*	0	1	1	0	1	0	1	1	1	26
FTP 18_MATTOS	1	*	0	1	1	0	0	1	1	1	*	27
MU_05	1	1	0	1	1	0	1	1	1	1	*	28
REG_NTVJ_8	1	1	0	1	1	0	1	1	1	*	0	28
FTP 38_MATTOS	1	*	1	1	0	0	0	1	1	1	1	29
FTP 47_MATTOS	1	*	1	1	1	0	0	1	1	1	1	30
PMB 15_MATTOS	1	*	1	1	1	1	0	1	1	1	1
PMB 8_MATTOS	1	*	1	1	1	1	0	1	1	1	1	31
FTP 29_MATTOS	1	*	1	1	1	1	0	1	1	1	1	31
FTP 8 MATTOS	1	*	1	1	1	1	0	1	1	1	1
PMB 7_MATTOS	1	*	1	1	1	1	0	0	1	1	1	32
PMB 4_MATTOS	1	*	1	1	1	0	0	0	1	1	1	33
FTP 21_MATTOS	1	*	1	1	1	0	0	0	1	1	1	33
PMB 1_MATTOS	1	*	1	1	1	0	0	0	1	1	0	34
MZ_NTVJ_2	1	1	1	1	1	0	0	0	*	*	*	34
4_CHEE	*	*	*	1	1	0	*	*	*	*	*
BEN_NTVJ_4	1	1	1	1	1	0	0	1	1	*	*	35
EIR_NTVJ_5	1	1	1	1	1	0	0	*	1	*	0
PMB 11_MATTOS	1	*	0	0	0	1	1	1	1	1	0	36
2_CHEE	*	0	0	0	0	1	1	*	*	*	*	36
PMB 10_MATTOS	1	*	0	0	1	1	1	1	1	0	0
FTP 66_MATTOS	1	*	0	0	1	1	1	1	1	0	0	37
FTP 65_MATTOS	1	*	0	0	1	1	1	1	1	0	0	37
FTP 39_MATTOS	1	*	0	0	1	1	1	1	1	0	0
JUC_NTVJ_14	0	0	0	1	0	1	1	1	1	1	1	38
FTP 28_MATTOS	1	*	1	0	*	1	1	1	1	1	0	39
FTP 17_MATTOS	1	*	1	0	1	1	1	1	1	1	0	39
FTP 13_MATTOS	1	*	1	1	1	1	1	1	1	1	1	40
PMB 16_MATTOS	1	*	1	1	0	1	1	1	1	1	1	41
PMB 24_MATTOS	1	*	1	1	1	1	1	1	1	1	0	42
FTP 45_MATTOS	1	*	1	1	0	1	1	1	1	1	0	43
PMB 3_MATTOS	1	*	0	1	0	1	1	1	1	1	0
PMB 2_MATTOS	1	*	0	1	0	1	1	1	1	1	0	44
FTP 55_MATTOS	1	*	0	1	0	1	1	1	1	1	0
PMB 5_MATTOS	1	*	0	1	1	1	1	1	1	1	1	45
FTP 23_MATTOS	1	*	0	1	1	1	0	1	1	1	1	46
PMB 9_MATTOS	1	*	0	1	1	1	1	1	1	1	0	47
FTP 73_MATTOS	1	*	0	1	1	1	1	1	1	1	0	47
MU_02	1	0	0	1	1	1	1	0	1	1	*	48
MU_03	1	0	0	1	1	1	1	0	1	1	*	48
PMB 12_MATTOS	1	*	0	0	1	1	1	1	1	1	1	49
BV_NTVJ_12	0	0	0	0	1	1	1	1	1	1	*	50
ROS_NTVJ_13	0	0	0	0	1	1	1	*	1	1	1	50
HM_NTVJ_10	*	1	0	*	1	1	1	0	1	*	0	51
LAB_NTVJ_15	0	1	0	0	1	1	1	1	1	1	0	52
MU_04	0	1	0	1	1	1	1	1	1	1	*	53
UNA_NTVJ_16	0	1	0	1	1	1	1	1	1	1	0	53

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[1] Autor para correspondênbcia: João Alberto Zago Bevenuto (jbevenuto@yahoo.com.br)