scholarly journals Fusarium Yellows and Turnip Mosaic Virus Resistance in Brassica rapa and B. juncea

HortScience ◽  
1997 ◽  
Vol 32 (5) ◽  
pp. 927-930 ◽  
Author(s):  
Robert G. Fjellstrom ◽  
Paul H. Williams
Keyword(s):  
Fusarium Oxysporum ◽  
Mosaic Virus ◽  
Brassica Rapa ◽  
Virus Resistance ◽  
Turnip Mosaic Virus ◽  
Resistant Cultivars ◽  
Disease Resistant ◽  
Race 1

Thirty-seven Brassica rapa L. and B. juncea L. lines from nine subspecies were tested for their reaction to two pathotypes of Fusarium yellows (Fusarium oxysporum Schlecht. f. sp. conglutinans (Wr.) Snyd. & Hans. race 1 and F.o. f. sp. raphani Kend. & Snyd. A subset of 16 lines from these same vegetable types were tested for their reaction to four strains of turnip mosaic virus (TuMV-C1, C2, C3, and C4). Resistance to both Fusarium pathotypes was widespread in these Brassica subspecies, whereas resistance to any strain of TuMV was uncommon. The broad availability of resistance to Fusarium yellows and scarcity of resistance to TuMV necessitate different approaches to obtain disease-resistant cultivars.

Genetic mapping of turnip mosaic virus resistance in Lactuca sativa

1994 ◽  
Vol 89 (5) ◽  
pp. 583-589 ◽  
Author(s):  
M. A. Robbins ◽  
H. Witsenboer ◽  
R. W. Michelmore ◽  
J. -F. Laliberte ◽  
M. G. Fortin
Keyword(s):  
Genetic Mapping ◽  
Mosaic Virus ◽  
Lactuca Sativa ◽  
Virus Resistance ◽  
Turnip Mosaic Virus

Genetic mapping of the novel Turnip mosaic virus resistance gene TuRB03 in Brassica napus

2003 ◽  
Vol 107 (7) ◽  
pp. 1169-1173 ◽  
Author(s):  
S. L. Hughes ◽  
P. J. Hunter ◽  
A. G. Sharpe ◽  
M. J. Kearsey ◽  
D. J. Lydiate ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Genetic Mapping ◽  
Mosaic Virus ◽  
Resistance Gene ◽  
Virus Resistance ◽  
Turnip Mosaic Virus ◽  
The Novel ◽  
Virus Resistance Gene

Identification and mapping of a novel dominant resistance gene, TuRB07 to Turnip mosaic virus in Brassica rapa

2013 ◽  
Vol 127 (2) ◽  
pp. 509-519 ◽  
Author(s):  
Mina Jin ◽  
Soo-Seong Lee ◽  
Lin Ke ◽  
Jung Sun Kim ◽  
Mi-Suk Seo ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Resistance Gene ◽  
Brassica Rapa ◽  
Turnip Mosaic Virus

RESPONSE OF NEAR-ISOGENIC PEA CULTIVARS TO INFECTION BY Fusarium oxysporum f. sp. pisi RACES 1 AND 5

1989 ◽  
Vol 69 (4) ◽  
pp. 1335-1346 ◽  
Author(s):  
M. CHARCHAR ◽  
J. M. KRAFT
Keyword(s):  
Fusarium Oxysporum ◽  
Lateral Roots ◽  
Dominant Gene ◽  
Fungal Growth ◽  
Resistance Response ◽  
Resistant Cultivars ◽  
Tap Root ◽  
Race 1 ◽  
Xylem Elements ◽  
Root Apices

Near-isogenic pea cultivars, differing by a single dominant gene for resistance (R) or susceptibility (S) to Fusarium oxysporum f. sp. pisi race 1 (’M410’-S, ’Vantage’-R) or race 5 (’Sundance’-S, ’Sundance II’-R), were evaluated for their response to infection. The response of resistant cultivars to each race was similar. Colonies of both races were isolated in higher numbers from tap and lateral root apices of susceptible as compared with resistant cultivars. Internal tap root and hypocotyl invasion occurred in all cultivars tested. However, lateral roots and stems of resistant cultivars were not infected as compared with susceptible lines. Surface colonization of tap and lateral roots of the resistant cultivars was significantly less than with the susceptible cultivars. Scanning electron microscopy revealed that gel-like material completely sealed off xylem elements in lateral roots, epicotyls, and aboveground stems of resistant cultivars. In contrast, intense mycelial invasion, without the formation of gels, occurred in susceptible cultivars. Conidial germination and germ-tube growth of both race 1 and race 5 were stimulated by xylem fluids from the susceptible, but not from the resistant cultivars. A resistance response based on physical containment and reduced fungal growth was evident.Key words: Fusarium wilt, host response, Pisum sativum

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