Reaction of Muskmelon Collections to Cucumber Green Mottle Mosaic Virus

Rajamony, L.; More, T. A.; Seshadri, Srividya; Varma, Anupam

doi:10.1111/j.1439-0434.1990.tb04590.x

Cited by 23 publications

(22 citation statements)

References 6 publications

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“…In melon, only the accessions 'Phoot' and 'Kachri' have been reported to be resistant to CGMMV (Rajamony et al, 1990). In 'Chang Bougi' plants, the virus was detected in inoculated leaves, but systemic movement of the virus was restricted after inoculation with CGMMV-SH.…”

Section: Discussionmentioning

confidence: 93%

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A New Source of Resistance to Cucumber Green Mottle Mosaic Virus in Melon

Sugiyama¹,

Ohara²,

Sakata³

2006

J. Japan. Soc. Hort. Sci.

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Cucumber green mottle mosaic virus (CGMMV), which is easily transmitted via foliage contact, soil contamination, and seeds, is one of the major diseases affecting melon (Cucumis melo L.). However, no commercial cultivars resistant to CGMMV are available. In melon, only the symptomless carrier-type accessions 'Phoot' and 'Kachri' (var. momordica Duthle and Fueler) have been reported to be resistant to CGMMV. Therefore, to identify CGMMV-resistant accessions, 152 melon accessions were screened for resistance to CGMMV by mechanical inoculation. Only plants of the Korean accession 'Chang Bougi' (var. makuwa Makino) were resistant to the SH isolate (CGMMV-SH). The influences of temperature on symptom development and CGMMV accumulation in 'Chang Bougi' plants were studied. At 24°C, no symptoms were observed in the upper leaves of 'Chang Bougi' plants at 25 days after inoculation. In contrast, at 30°C, chlorotic spots were observed in the upper leaves from 15 to 20 days after inoculation. Under greenhouse conditions at an average temperature of 27.3°C, mosaic and chlorotic spots were observed in the upper leaves of 'Chang Bougi' plants from 30 days after inoculation. The accumulation patterns of CGMMV in the inoculated portions of 'Chang Bougi' and 'Perlita' (susceptible control) cotyledons were almost identical. CGMMV was detected in the uninoculated portions of 'Perlita' cotyledons from 4 days after inoculation, but was not detected in the uninoculated portions of 'Chang Bougi' cotyledons until 10 days after inoculation. Symptoms were observed, and the virus was detected in the upper leaves of 'Chang Bougi' plants inoculated with the watermelon isolate (CGMMV-W) or Kyuri green mottle mosaic virus (KGMMV). These results indicate that virus movement was restricted and that growth at 30°C enhances symptoms in this accession. Moreover, the resistance to CGMMV in this accession was specific to the SH isolate.

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Section: Discussionmentioning

confidence: 93%

“…'Phoot' and 'Kachri' (var. momordica Duthle and Fueler) have been reported to be CGMMV-resistant (Rajamony et al, 1990), but these accessions show the symptomless carrier-type resistance to CGMMV. There have also been no reports of the breeding of CGMMV-resistant melon, except for one method using transformation (Kashima et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

A New Source of Resistance to Cucumber Green Mottle Mosaic Virus in Melon

Sugiyama¹,

Ohara²,

Sakata³

2006

J. Japan. Soc. Hort. Sci.

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“…However, many sources of resistance have been reported from polygenic inheritance. Most of this resistance is intermediate, such as CMV resistance in cucumber (Wasuwat and Walker, 1961) and melon (Dogimont et al, 2000;Takada et al, 1979), CGMMV resistance in melon (Rajamony et al, 1990;Sugiyama and Sakata, 2007), and MYSV resistance in cucumber (Sugiyama et al, 2011). It is difficult to exclude inferior traits that may be linked to resistant genes, and it is also difficult to pyramid the genes conferring different resistances.…”

Section: Resultsmentioning

confidence: 99%

“…Melon plants of the non-dessert-type accessions 'Phoot', 'Kachri', FM1, and FM5 have been reported to be resistant to CGMMV (Rajamony et al, 1990). The resistance of these accessions to CGMMV was found to be governed by recessive polygenes.…”

Section: Cucumber Green Mottle Mosaic Virus-resistant Melonmentioning

confidence: 99%

The Present Status of Breeding and Germplasm Collection for Resistance to Viral Diseases of Cucurbits in Japan

Sugiyama

2013

J. Japan. Soc. Hort. Sci.

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Cucumber (Cucumis sativus L.) and melon (C. melo L.) are globally important crop species in the family cucurbit. However, pests and disease, including various viral diseases, affect cucumber and melon production in Japan. Choosing a resistant cultivar is one of the most effective methods for disease control. Many sources of viral resistance have been identified in cucurbits, and various resistant commercial cultivars have been bred. This review describes the present status of cucurbit breeding and sources of resistance to the four major viruses in Japan. Melon yellow spot virus (MYSV) and Cucurbit chlorotic yellows virus (CCYV) are devastating insecttransmitted viruses that were first reported in Japan. MYSV-resistant cucumber and CCYV-resistant melon were selected from germplasm collections. The resistance of cucumber accession 27028930 to MYSV is temperature dependent and intermediate; melon isolate (MYSV-S) inoculation resulted in no systemic infection of resistant cucumber plants at low temperature (20°C). The melon accession JP 138332 exhibits high resistance to CCYV. These accessions are considered promising sources for breeding resistant cultivars. Cucumber green mottle mosaic virus (CGMMV) and Melon necrotic spot virus (MNSV) are soil-borne viruses. The Korean melon accession 'Chang Bougi' is resistant to the SH isolate of CGMMV. The resistance of 'Chang Bougi' is controlled by two independent complementary recessive genes (cgmmv-1 and cgmmv-2), whereas resistance to MNSV is controlled by a single recessive gene (nsv) in melon. The nsv gene was introduced into commercial cultivars, and these cultivars have shown high resistance to MNSV. There is an increasing demand for new cultivars with resistance to additional viruses. To satisfy this demand and solve problems related to cucurbit viruses, core collections of each cucurbit crop are required for the identification of resistant germplasm, and marker-assisted selection will allow us to breed new cultivars rapidly and accurately.

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“…The present investigation was carried out to determine host plant resistant and the results are reported herein. Rajamony et al, (1990) in melons with slight modification. The individual plant score was utilized to work out the 'severity index' or 'vulnerability' index so as to measure the degree of resistance.…”

Section: Introductionmentioning

confidence: 99%