Mapping of QTLs Conferring the Resistance to CMV in Wild Tomato Species Solanum lycopersicoides LA2951

ACTA HORTICULTURAE SINICA ›› 2013, Vol. 40 ›› Issue (10): 1905-1915.

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Mapping of QTLs Conferring the Resistance to CMV in Wild Tomato Species Solanum lycopersicoides LA2951

ZHOU Long-xi，LIU Lei，SUN Yu-yan，YANG Yu-hong，XIE Bing-yan，FENG Lan-xiang，SONG Yan，ZHENG Zheng，and LI Jun-ming*

（Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Beijing 100081，China）

Received:2013-05-28 Online:2013-10-25 Published:2013-10-25

Abstract

Abstract: Solanum lycopersicoides showed high resistance to Cucumber mosaic virus（CMV）. An introgression line（IL） population derived from a nightshade related species S. lycopersicoides LA2951 was used to identify the involved loci for resistance to CMV by rub-inoculation in four independent experiments. In total，8 QTLs for resistance to CMV located on chromosome 2，7，8，9，10，11 and 12 were found respectively. Percentage of disease index（PDI）was significantly decreased in these ILs. All QTLs were new loci when compared those identified previously from S. habrochaites LA1777 and S. chilense LA0458. The genetic analysis of these QTLs showed incompletely dominant. The interaction of these QTLs presented complete additive effect. The results provide a prospect for breeding of CMV resistance in tomato.

Key words: tomato, Solanum lycopersicoides, introgression line, Cucumber mosaic virus（CMV）, QTL mapping

CLC Number:

S 641.2

ZHOU Long-xi，LIU Lei，SUN Yu-yan，YANG Yu-hong，XIE Bing-yan，FENG Lan-xiang，SONG Yan，ZHENG Zheng，and LI Jun-ming*. Mapping of QTLs Conferring the Resistance to CMV in Wild Tomato Species Solanum lycopersicoides LA2951[J]. ACTA HORTICULTURAE SINICA, 2013, 40(10): 1905-1915.

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Mapping of QTLs Conferring the Resistance to CMV in Wild Tomato Species Solanum lycopersicoides LA2951

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