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Genetic diversity analysis of Phalaenopsis Frigdaas Oxford' using SRAP markers with reference to those genes responsible for variations in the pigmentation of petals and sepals

文献类型： 外文期刊

作者： Lu, Fubing 2 ; Yu, Niu 1 ; Zhao, Xiaolan 1 ; Zhang, Jianxia 3 ; Xiao, Wenfang 1 ; Li, Wenyan 1 ; Liu, Runze 1 ; Zhu, Jun; 1 ;

作者机构： 1.S China Agr Univ, Guangdong Key Lab Innovat Dev & Utilizat Forest P, Guangzhou 510642, Guangdong, Peoples R China

2.Guangdong Acad Agr Sci, Guangdong Key Lab Ornamental Plant Germplasm Inno, Floricultural Res Inst, Guangzhou 510640, Guangdong, Peoples R China

3.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, S Chi

关键词： genes;sequence-related amplified polymorphism marker: SRAP marker;pigmentation pattern;color development;polymorphic band;species genetic variation;Gen Bank sequence data bank

期刊名称：JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY （ 影响因子：1.641； 五年影响因子：1.616 ）

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收录情况： SCI

摘要： A selfed progeny from Phalaenopsis 'Frigdaas Oxford', with yellow flowers and red-purple blotches, was established. Individual plants varied greatly in terms of the number, size, and distribution pattern of the red-purple blotches. Sequence-related amplified polymorphism (SRAP) markers were used to analyse 159 individual plants in the progeny, and 14 polymorphic primer combinations were selected from the 594 SRAP primer combinations tested. In total, 80 polymorphic bands were produced using these primer combinations. On average, each primer pair combination amplified 80.1% polymorphic bands. An UPGMA dendrogram and a principal coordinate analysis (PCA) showed that the 159 individual plants selected could be divided into 12 clusters, including a cluster that consisted of plants in which the petals and sepals were fully red-purple in colour. Plants in which the petals and sepals had large red-purple blotches were genetically closer to the latter cluster than were those plants in which the blotches were small, indicating that the SRAP markers could be used efficiently to identify genetic variation in a Phalaenopsis population with respect to flower colour. Furthermore, 45 unique genes identified by SRAP from the selfed progeny population were sequenced. These data suggest that SRAP markers for the pattern of pigmentation in the petals and sepals of Phalaenopsis may be used in breeding Phalaenopsis for specific patterns of flower pigmentation.

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