Azalea

Riek, Jan De; Keyser, Ellen De; Calsyn, E.; Eeckhaut, Tom; Huylenbroeck, Johan Van; Kobayashi, Nobuo

doi:10.1007/978-3-319-90698-0_11

Cited by 12 publications

(11 citation statements)

References 51 publications

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“…The chloroplast is of utmost importance for cold acclimation and acquisition of freezing tolerance (Trentmann et al, 2020). The cytoplasm genomic contribution of R. ripense, presumably through R. mucronatum for pot azalea development, is likely related with breeding objectives such as winter hardy in the adaptation to environment stress in Western countries (De Riek et al, 2018;Demasi et al, 2017).…”

Section: Fig 3 Pcr-rflp Band Patterns Of the Trn L-f Region Digested Bymentioning

confidence: 99%

Contribution of the <i>Rhododendron ripense</i> Makino Chloroplast Genome to the Development of Evergreen Azalea Cultivars

et al. 2021

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Evergreen azalea is one of the most important ornamental shrubs and pot plants in temperate zones worldwide. In Japan, hundreds of azalea cultivars have been bred based on the genetic diversity of wild species and various accumulated mutants since the middle of the 17th century. Japanese cultivar groups such as Edo-kirishima, Kurume-tsutsuji, Ryūkyū-tsutsuji, Hirado-tsutsuji, and Satsuki have been developed by selection and crossing, and many cultivars have been exported to Western countries and utilized as breeding materials for pot and garden azalea. Rhododendron ripense Makino, which grows on riverside rocks and is endemic to Japan, is one of the best ornamental species because of its high adaptability to environmental conditions. We have focused on the genetic contribution of this wild species to evergreen azalea cultivars, and developed a PCR-RFLP identification marker of R. ripense cpDNA based on a species-specific sequence of the trn L-F region. The R. ripense cpDNA specific marker has been in Japanese large-flowered groups, all Ryūkyū and Ōkirishima cultivars, and half of all Hirado cultivars have the R. ripense cpDNA type. Most Japanese small flower cultivars, such as Edo-kirishima, Kurume and Satsuki have non-R. ripense type cpDNA. Italian large-flowered cultivars also tend to be the R. ripense cpDNA type. Furthermore, all pot azalea cultivars of the Indian and Simsii groups possess R. ripense type cpDNA. These results clarified the cytoplasmic contribution of R. ripense not only to Japanese large flower cultivars, but also to Western azalea cultivars. Although R. simsii has been considered to be the main ancestral species of pot azalea, R. ripense should be recognized as the cytoplasmic parent of these cultivars. The ornamental value and adaptive environmental trait originating from R. ripense should be reviewed to elucidate the development history of evergreen azalea cultivars.

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Section: Fig 3 Pcr-rflp Band Patterns Of the Trn L-f Region Digested Bymentioning

confidence: 99%

Contribution of the <i>Rhododendron ripense</i> Makino Chloroplast Genome to the Development of Evergreen Azalea Cultivars

et al. 2021

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“…(Indoor azalea), is the most widely cultivated Rhododendron species (Ding 2009;Kobayashi et al 2013;De Riek et al 2018). As the primary ancestors of azalea cultivars, R. simsii was introduced into Europe in the 18th century from China and its breeding for ornamental use began in England and was well developed in Belgium (Galle 1985;De Keyser et al 2010;De Riek et al 2018). Then, R. simsii hybrids become one of the most important pot plants in Belgium, with an annual production of approximately 40 million pots (De Keyser et al 2010).…”

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confidence: 99%

“… 2013 ; De Riek et al. 2018 ). As the primary ancestors of azalea cultivars, R. simsii was introduced into Europe in the 18th century from China and its breeding for ornamental use began in England and was well developed in Belgium (Galle 1985 ; De Keyser et al.…”

mentioning

confidence: 99%

“… 2010 ; De Riek et al. 2018 ). Then, R. simsii hybrids become one of the most important pot plants in Belgium, with an annual production of approximately 40 million pots (De Keyser et al.…”

mentioning

confidence: 99%

“…Now azalea cultivars have become one of the most popular pot plants and landscape shrubs in Europe, North American, and Asia (Galle 1985 ; De Riek et al. 2018 ). Here, we determine mitochondrial and plastid content and structure of R. simsii through whole-genome sequencing, as well as detected its identity and phylogenetic relationship among Ericales.…”

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The complete mitochondrial and plastid genomes of Rhododendron simsii, an important parent of widely cultivated azaleas

Luo

Nie

et al. 2021

Mitochondrial DNA Part B

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The genus Rhododendron of the heather family (Ericaceae) is well known and widely cultivated for their highly ornamental value. The most widely cultivated Rhododendron species is Rhododendron simsii (Indoor azalea). In this study, we assembled the complete linear mitochondrial genome (GenBank accession number MW030508) and quadripartite plastid genome (GenBank accession number MW030509). The mitochondrial genome is 802,707 bp in length with containing 53 unique genes (33 protein-coding, 17 tRNA, and 3 rRNA genes), while the 152,214 bp long plastid genome is smaller and containing 105 unique genes (4 rRNA, 26 tRNA, and 75 protein-coding genes). Phylogenetic analysis showed that the same species relationship with APG system as well as the low supports of branches which is the common characteristic of resolved Ericales phylogenetics.

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Land-use change alters specialist bee diet and drives body size declines

Anderson,

Hahn,

Gonzalez

et al. 2024

Landsc Ecol

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Context Land-use change can cause decreases in plant abundance and richness and the replacement of wild plants with domesticated plants. Changes in plant community composition disrupt mutualistic plant-pollinator interactions with ecological consequences for plants and pollinators, and especially for specialists that rely on certain plants. Objectives We assessed the effects of land-use change and subsequent shifts in plant communities on resource collection and body size for a bee pollinator, Habropoda laboriosa, a purported specialist of blueberries and related Ericaceae plants. Methods We collected Habropoda laboriosa across a gradient of land use in north-central Florida including agricultural, natural, and urban habitats. We assessed landcover and floral community composition at each site and related these to bee body size (intertegular distance) and resource use (proportion host plant pollen and pollen diversity collected). Results Host plant pollen collection and bee body size generally responded similarly to the landscape, both increasing with habitats containing host plants (blueberry farms and natural habitat) but decreasing with urban development. However, host pollen collection and bee body size responded in opposite ways to overall cropland in the landscape, with cropland negatively affecting body size despite positively affecting host pollen collection, indicating other factors associated with cropland might drive declines in bee body size. Conclusions Land-use change can adversely affect bee diet and body size, and changes in diet likely contribute to changes in body size over time. Specialists are particularly at risk for negative impacts of land-use change due to their inability to shift plant hosts.

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Azalea

Cited by 12 publications

References 51 publications

Contribution of the <i>Rhododendron ripense</i> Makino Chloroplast Genome to the Development of Evergreen Azalea Cultivars

Contribution of the <i>Rhododendron ripense</i> Makino Chloroplast Genome to the Development of Evergreen Azalea Cultivars

The complete mitochondrial and plastid genomes of Rhododendron simsii, an important parent of widely cultivated azaleas

Land-use change alters specialist bee diet and drives body size declines

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