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A Jalapeño hybrid with resistance to Bacterial Leaf Spot (BLS) Xanthomonas campestris pv. vesicatoria and Cucumber Mosaic Virus (CMV)

IP.com Disclosure Number: IPCOM000239632D
Publication Date: 2014-Nov-20
Document File: 1 page(s) / 12K

Publishing Venue

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Abstract

There are a number of Jalapenyo pepper varieties which contain resistance against Bacterial Leaf Spot (BLS) Xanthomonas campestris pv. vesicatoria.

There is, however, currently no Jalapeño hybrid in the market with both BLS and Cucumber Mosaic Virus (CMV) resistance.

Herein we describe how BLS and CMV can be combined in hot pepper varieties.

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A Jalapeño hybrid with resistance to Bacterial Leaf Spot (BLS) Xanthomonas campestris pv. vesicatoria and Cucumber Mosaic Virus (CMV).

There are a number of Jalapenyo peppers which contain resistance against Bacterial Leaf Spot (BLS) Xanthomonas campestris pv. vesicatoria, such as Agriset 4108, Capsico, Centella, El Jefe, El Rey, Jalafuego, Ixtapa, New Park Sayula, Telica, Tormenta and Valor.

There is currently no Jalapeño hybrid in the market with both BLS and Cucumber Mosaic Virus (CMV) resistance.

A hybrid that combines both traits would be of great benefit to the farmers. To address the market need these two traits were combined in Jalapeño germplasm.

For BLS resistance the near isogenic line ECW20R was used (Early California Wonder, a Bell Pepper carrying the Bs2 gene, see e.g. Kousik and Ritchie 1999, Phytopathology Volume 89, No 11, p1066-1072), which provides resistance against races 0, 1, 2 and 3.

CMV resistance was obtained from the Lamuyo pepper hybrid variety Tolomeo (Syngenta).

These two resistances were combined in Jalapenyo germplasm by backcrossing. Several Jalapeno pepper hybrids with both CMV and BLS resistance were generated.