Comparative assessment of ISSR, DAMD and RAPD markers for evaluation of genetic diversity of gerbera (Gerbera jamesonii Bolus ex Hooker f.) cultivars

Saïdi, A.; HAJKAZEMIAN, Melika

doi:10.14720/aas.2023.119.1.2425

Cited by 1 publication

(1 citation statement)

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“…Molecular marker-assisted selection (MAS) can accelerate directional breeding by developing molecular markers that are linked to specific traits [ 15 , 16 ]. Previous studies have used RAPD [ 17 ], DAMD [ 18 ], ISSR [ 18 ], and SSR [ 19 , 20 , 21 ] markers to evaluate the genetic diversity of gerbera. However, few studies have focused on molecular markers related to important ornamental traits of gerbera.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic Variation in Flower Color and Morphology in the Gerbera (Gerbera hybrida) F1 Hybrid Population and Their Association with EST-SSR Markers

Zhou,

Zou,

Yan

et al. 2023

IJMS

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Gerbera (Gerbera hybrida) is a widely cultivated ornamental plant. However, its genetic improvement is limited by the lack of genetic analysis and molecular markers for traits. In this study, we analyzed the phenotypic and genotypic variation of 140 F1 progeny from two gerbera varieties with different flower types and colors. We evaluated the flower’s morphology, color, and pigment content of the F1 population and performed cluster principal component analysis (PCA) and correlation analysis. The results showed that the main ornamental traits of the hybrid progeny varied greatly. The segregation ratios of single and double flowers and ligulate and split ray florets were both 1:1. The flower colors of the F1 progeny were mainly red and purple-red, similar to the male parent’s color. Furthermore, we conducted a genetic analysis of the hybrid progeny using EST-SSR markers and performed association analysis with phenotypic traits. We identified 2, 2, 3, 1, and 2 loci to be associated with peduncle length (PL), ray floret length (RFL), and outer ray floret; the level of apex relative to the top of involucre (LAI); outer corolla lips (OCL); and the b* of ray floret color, respectively. Our results reveal the genetic patterns of important ornamental traits and provide a theoretical basis and practical tools for gerbera genetic breeding.

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