Heterosis and genetic analysis of branching in cut-flower chrysanthemums

Yang, Yunyang; Wen, Chao; Ma, Nan; Zhao, Lingxia

doi:10.1007/s10681-015-1439-7

Cited by 12 publications

(7 citation statements)

References 16 publications

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“…Understanding the inheritance patterns of key ornamental traits can provide insights into more effective genetic breeding. The inheritance patterns of ornamental traits in various plants, such as Streptocarpus [ 25 ], Lilium [ 26 ], Chrysanthemum [ 27 , 28 , 29 , 30 ], and Hedychium [ 31 , 32 ], have been examined. The study of floral trait inheritance patterns in Asteraceae ornamental plants is a popular research topic, with the inheritance patterns of several traits, such as flower type, being clarified [ 29 , 30 ].…”

Section: Discussionmentioning

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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Section: Discussionmentioning

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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“…Controlling plant phenotypic characteristics is usually one of the most important goals in plant genetic breeding [24][25][26][27]. The fruit traits are important economic traits and targets for genetic improvement [28].…”

Section: Discussionmentioning

confidence: 99%

Genetic Analysis of Fruit Traits in Wolfberry (Lycium L.) by the Major Gene Plus Polygene Model

Ren

Yin

et al. 2022

Agronomy

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The fruit diameter (FD), fruit length (FL), fruit peduncle length (FPL), fruit weight (FW) and fruit index (FI, FL/FD) are important quantitative traits in wolfberry fruit, and also one of the most important goals of variety breeding; however, the inheritance of these traits has not been studied to date. In this study, the genetic analysis of these five fruit traits was undertaken for four pairs of F1 hybrid populations (CI, CII, CIII and CIV) using the major gene and polygene mixed inheritance model. The results showed that the five fruit traits exhibited super-parent segregation in four hybrid combinations, and five traits of progeny with abundant genetic diversity. In CII, CIII and CIV, the mid-parental heterosis ratio (RHm%) of FD, FL, FPL and FI was greater than 0 with positive heterosis. FD, FL and FI in CI, CII and CIII were controlled by one pair of additive-dominant major genes (A-1). However, in CIV, FD was controlled by two pairs of additive-dominant alleles (B-6) and FL was best fitted to polygenic control (A-0). In addition, it was found that FPL in CI, CIII and CIV was controlled by one or two pairs of additive-dominant major genes (A-1, B-6, B-1), and FW in CIII and CIV was also controlled by one or two pairs of additive-dominant major gene controls (A-1, B-1). For FD, FPL, FW and FI in CIII and FPL and FW in CII, the major genes heritability was over 50%, indicating that these traits are affected by both genes and the environment, and that the selection of these traits should be considered in later generations due to the large effect of environmental factors. Therefore, this study provides a theoretical basis for QTL mapping and early selection of hybrid breeding of Lycium fruits.

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“…Kitamura ‗rm20-12' (2n = 54) and its wild diploid relative D. nankingense (Nakai) Tzvelev (2n = 18). The inheritance of branching traits identified in different cultivars of chrysanthemum revealed that two cross combinations both had cultivar ‗Fukashi' as a parent exhibited branching traits as highly heritable (Yang et al, 2015). Mass selection and polycross increased the frequency of desirable individuals in the improved populations, and the variation coefficient of pyrethrin content was reduced from 29% in the base population to 18% and 16% after mass selection and polycross, respectively indicating polycross is comparatively more effective for rapid improvement of pyrethrum populations (Li et al, 2014).…”

Section: Hybridizationmentioning

confidence: 99%