Resistance Against Melon Chlorotic Mosaic Virus and Tomato Leaf Curl New Delhi Virus in Melon
Thirty-one melon accessions were screened for resistance to the begomoviruses (MeCMV) and (ToLCNDV). Five accessions presented nearly complete resistance to both viruses. Accession IC-274014, showing the highest level of resistance to both viruses, was crossed with the susceptible cultivar Védrantai...
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Veröffentlicht in: | Plant disease 2019-11, Vol.103 (11), p.PDIS02190298RE-2919 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Thirty-one melon accessions were screened for resistance to the begomoviruses
(MeCMV) and
(ToLCNDV). Five accessions presented nearly complete resistance to both viruses. Accession IC-274014, showing the highest level of resistance to both viruses, was crossed with the susceptible cultivar Védrantais. The F
, F
, F
/F
, and both backcross progenies were mechanically inoculated with MeCMV. Plants without symptoms or virus detection by enzyme-linked immunosorbent assay and/or PCR were considered as resistant. The segregations were compatible with two recessive and one dominant independent genes simultaneously required for resistance. Inheritance of resistance to ToLCNDV in the F
was best explained by one recessive gene and two independent dominant genes simultaneously required. Some F
and F
families selected for resistance to MeCMV also were resistant to ToLCNDV, suggesting that common or tightly linked genes were involved in resistance to both viruses. We propose the names
and
for these genes (symbols
and
). Resistance to MeCMV in IC-274014 was controlled by
,
, and the recessive gene
(
); resistance to ToLCNDV was controlled by
,
, and the dominant gene
(
). |
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ISSN: | 0191-2917 1943-7692 |
DOI: | 10.1094/PDIS-02-19-0298-RE |