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Pak. J. Bot., 44(4): 1381-1384, 2012. |
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Updated: 16-08-12 | ||||
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SRAP MARKERS FOR FRUIT SHAPE IN CUCUMBER
HUANWEN MENG1, SHUXIA CHEN1, ZHIHUI CHENG*, DANDAN CHAI1 AND YALI LI
Abstract: Fruit shape is one of the most important quality factors in many domesticated plants. In this study, we used bulked segregate analysis (BSA) to identify two sequence-related amplified polymorphism (SRAP) markers linked to fruit shape in cucumber (Cucumis sativus L.). A segregating F2 population of 130 plants from a cross (B-2-2×Y-3) of B-2-2 with long fruit shape trait and Y-3 with round fruit shape trait was used. Correlation and regression analysis showed that markers ME21/EM18M600 and ME9OD3M190 were linked closely to the allele of round at the fruit shape locus. Marker ME21/EM18M600 accounted for 49.5% of the phenotypic variation in fruit shape, and ME21/EM18M600 accounted for 33.1% of the phenotypic variation.
College of Horticulture, Northwest A & F University, Yangling Shaanxi 712100, P.R China *Corresponding author’s e-mail: chengzh@nwsuaf.edu.cn 1These authors contributed equally to this work. |
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