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Identification of molecular markers associated with the double flower trait in Petunia hybrida

文献类型： 外文期刊

作者： Liu, Caixian 1 ; He, Yanhong 1 ; Gou, Tianyun 1 ; Li, Xin 1 ; Ning, Guogui 1 ; Bao, Manzhu 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Hort & Forestry Sci, Minist Educ, Key Lab Hort Plant Biol, Wuhan 430070, Peoples R China

2.Cent South Univ Forestry & Technol, Coll Landscape Architecture, Changsha 410004, Hunan, Peoples R China

3.Shanghai Acad Agr Sci, Shanghai 201400, Peoples R China

关键词： Petunia hybrida;Double flower;Molecular marker;Near-isogenic line

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）

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收录情况： SCI

摘要： The flower architectural trait of doubleness is a highly important breeding characteristic in the ornamental species petunia (Petunia hybrida). Here, we described the development of a near-isogenic line of a petunia population that segregated for single and double flower types. Sequence-related amplified polymorphism (SRAP) and simple sequence repeat (SSR) techniques, combined with bulked segregant analysis (BSA) were used to develop molecular markers linked to this floral trait. From a survey of 170 SRAP and 38 SSR primer combinations, one SRAP marker and one SSR marker were found to be linked to the target trait, each leading to the amplification of a specific band in double flower petunia. The two markers were verified in a population of 1065 plants, including 478 single flower and 587 double flower petunia individuals, and were shown to be tightly linked to the double flower locus with no recombination events observed. Hence, these markers have the potential for application in the positional analysis of the double flower locus and, ultimately, may contribute towards determining the genetic basis of flower type. (C) 2016 Elsevier B.V. All rights reserved.

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