Fertility barriers in interspecific crosses within Viburnum

Xie, Weijia; Leus, Leen; Wang, Jihua; Laere, Katrijn Van

doi:10.1007/s10681-016-1829-5

Cited by 6 publications

(2 citation statements)

References 66 publications

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“…These components are the result of pollen-stigma-ovule interactions which can fail at two different stages: (1) before fertilisation because of the inhibition of the pollen tube’s growth, which are not able to reach the ovary and the ovules are not fertilised, and (2) after fertilisation, when fertilized ovules fail to develop fully developed seeds. We visualised the pollen tube growth in vivo by UV microscopy following an analine blue staining protocol modified from Xie et al . (2017) by collecting self-pollinated flowers after 72 hours and preserving them in alcohol 90°.…”

Section: Methodsmentioning

confidence: 99%

Can changes in ploidy drive the evolution to allogamy in a selfing species complex?

García-Muñoz,

Ferrón,

Vaca-Benito

et al. 2023

Preprint

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SummaryThe evolution of mating systems in plants is central for understanding the rise of their diversity on Earth. The transition towards self-fertilization is a well-known example of convergent evolution although the opposite direction is expected to be forbidden according to evolutionary theories. We suggest that the ploidy level could promote changes in the reproductive strategies through its effect on traits related to pollination.We performed controlled crosses on several populations from the polyploidErysimum incanumspecies complex, described as predominantly selfing, to evaluate the inbreeding depression. Additionally, we measured mating traits such as floral size, herkogamy, anther exertion, the relative investment in male and female components (P:O ratio) and genetic diversity.We described three ploidy levels in the complex – hexaploids were unknown until now. We found significant differences in the self-pollination success among ploidies and even among populations within the same ploidy. Inbreeding depression was present in higher ploidies, accompanied by bigger flowers with higher anther exposure, increased herkogamy and P:O and genetic diversity.These findings suggest that ploidy could be promoting alternative reproductive strategies to selfing, driving mating system diversification within a selfing species, which has not been previously described in the wild.

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Section: Methodsmentioning

confidence: 99%

Can changes in ploidy drive the evolution to allogamy in a selfing species complex?

García-Muñoz,

Ferrón,

Vaca-Benito

et al. 2023

Preprint

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“…The success of interspecific hybridization and the barriers encountered while achieving this success are the subject of research by breeders and researchers. For many ornamental plants interspecific hybridization has been pursued such as Begonia (Siregar, 2016), Delphinium (Cheng et al, 2020), Dianthus (Dewanti et al, 2019), Eustoma (Barba-Gonzalez et al, 2017), Gentiana (Takamura et al, 2019), Hibiscus (Kuligowska et al, 2016a), Iris (Lian et al, 2016), Nymphaea (Sun et al, 2018), Phalaenopsis (Rungruchkanont and Promchot, 2016), Rosa (Farooq et al, 2016), Tagetes (He et al, 2016), Tulipa (Xing et al, 2020), Vibirnum (Xie et al, 2017) and Viola (Żabicka et al, 2020).…”

Section: Interspecific Hybridizationmentioning

confidence: 99%

Kalanchoë Breeding: Past, Present and Future

Kahraman¹,

Mendi

Karabıyık

et al. 2022

Ornam. Hortic.

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Kalanchoë cultivars rank as one of the most sold potted ornamental plants in the world. Among its key features that sustain high market interest are the long flowering period, abundance of flowers, thick and glossy leaves, easy maintenance and less water requirement compared to other potted plants. In breeding studies of Kalanchoë, plants with different flower colors such as white, cream, yellow, orange, red, pink and purple were developed. Moreover, double-flowered cultivars (comprising a large number of petals), more compact and cultivars with larger flowers were also obtained. Novel morphological characteristics are always in high demand in the market of ornamental plants. Increasing the variation in the gene pool with different species played a major role in the development of these characteristics. Nowadays, not only potted cultivars are launched but also cut flower cultivars have been developed and presented to consumers. Besides conventional breeding and interspecific hybridization, biotechnological methods, which have a promising future, are used to develop morphological characteristics of Kalanchoë.

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