Variation in Ploidy and Karyological Diversity in Different Herbaceous Peony Cultivar Groups

Yang, Liuhui; Zhang, Jianjun; Silva, Jaime A. Teixeira da; Yu, Xiaonan

doi:10.21273/jashs04015-17

Cited by 10 publications

(5 citation statements)

References 14 publications

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“…В особую группу межсекционных гибридов выделены гибриды Itoh, полученные в результате скрещиваний представителей секций Moutan и Paeonia, при использовании их как в качестве отцовского, так и материнского родителей. Гибриды Itoh имеют триплоидное число хромосом (2n = 3x = 15) (Yang et al, 2017). Все известные в литературе гибриды Itoh являются триплоидами, полученными преимущественно от скрещиваний диплоидного P. lactiflora в качестве материнской формы с древесным диплоидным пионом P. delavayi var.…”

Section: таблица 3 коллекции травянистых пионов научно-исследовательс...unclassified

Achievements in world and domestic breeding of peonies (<i>Paeonia</i> L.)

Ivanov,

Vasilyeva,

Anisimova

et al. 2024

Biotehnologiâ i selekciâ rastenij

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The genus Paeonia L. includes both popular ornamental and medicinal plants with a rich history of cultivation and breeding. Breeding is an important process of increasing the diversity of the assortment and creating new cultivars of peonies with various economically important characteristics, such as the shape and color of flowers, different flowering periods and resistance to diseases and abiotic stressors. The main methods used in the breeding of peonies are traditional methods, including intraspecific, interspecific and intersectional hybridization, however, such factors as a long reproduction cycle and the complexity of the breeding process limit the possibilities for good progress in this work. The application of methods of biotechnology and molecular genetics make the breeding process more efficient. The use of germplasm resources and hybridization will accelerate the process of creating new cultivars not only with various decorative features, but also those with high adaptability to biotic and abiotic factors and resistance to phytopathogens and diseases. This review highlights the history of domestic and foreign breeding, modern trends and methodology of peony breeding. Information is provided on the achievements and limitations that exist in the field of molecular biological study of peonies.

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Section: таблица 3 коллекции травянистых пионов научно-исследовательс...unclassified

Achievements in world and domestic breeding of peonies (<i>Paeonia</i> L.)

Ivanov,

Vasilyeva,

Anisimova

et al. 2024

Biotehnologiâ i selekciâ rastenij

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“…Itoh hybrid peonies are generally triploid 124,125 with poor fertility and produce few effective pollen grains or full seeds. Smith tried to restore the fertility of Itoh hybrid peonies by crossing some of his own Itoh hybrid peony cultivars with Lactiflora peony or an advanced generation of herbaceous hybrid peony cultivars 126 .…”

Section: Intersectional Cross-breedingmentioning

confidence: 99%

Germplasm resources and genetic breeding of Paeonia: a systematic review

Yang

Sun

et al. 2020

Hortic Res

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Members of the genus Paeonia, which consists of globally renowned ornamentals and traditional medicinal plants with a rich history spanning over 1500 years, are widely distributed throughout the Northern Hemisphere. Since 1900, over 2200 new horticultural Paeonia cultivars have been created by the discovery and breeding of wild species. However, information pertaining to Paeonia breeding is considerably fragmented, with fundamental gaps in knowledge, creating a bottleneck in effective breeding strategies. This review systematically introduces Paeonia germplasm resources, including wild species and cultivars, summarizes the breeding strategy and results of each Paeonia cultivar group, and focuses on recent progress in the isolation and functional characterization of structural and regulatory genes related to important horticultural traits. Perspectives pertaining to the resource protection and utilization, breeding and industrialization of Paeonia in the future are also briefly discussed.

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“…Herbaceous peonies have a long cultivation history, and symbolize wealth and honor in Chinese culture [26]. Species within these sections are varied in morphology and ploidy level [27,28]. Crucially, Paeonia has the largest number of exclusively herbaceous species and the widest distribution in the Mediterranean and Eastern Asiatic regions [25].…”

Section: Introductionmentioning

confidence: 99%

Integration of RNA-Seq and Metabolite Analysis Reveals the Key Floral Scent Biosynthetic Genes in Herbaceous Peony

Kimani,

Wang,

Xie

et al. 2024

Horticulturae

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Floral scent is an essential and genetically complex trait in herbaceous peonies (Paeonia lactiflora Pall.); however, specific genes related to metabolic and regulatory networks remain scantily studied. Our study integrated metabolite profiling and RNA-sequencing to screen floral scent biosynthetic genes. Hence, the major molecules identified by headspace collection combined with cultivar-specific GC-MS analysis were geraniol, β-caryophyllene, 2-phenylethanol (2-PE), citronellol, and 1,8-cineole. Genes related to terpenoids and 2-PE biosynthesis were identified after the assembly and annotation of the P. lactiflora transcriptomes. Eight angiosperm-specific terpene synthases (TPSs) from the TPS-a and TPS-b clades, as well as enzymes linked to 2-PE synthesis such as aromatic amino acid decarboxylase (AADC), phenylacetaldehyde reductase (PAR), and geranial reductase (GER) were identified. The biochemical analysis of the enzymes encoded by PlPAR1 and PlGER1 generated 2-PE from phenylacetaldehyde (PAld). The pairwise alignment of AADC1 reveals a splice variant lacking a 124 bp fragment, thus highlighting the possible role of alternative splicing in modulating floral scent composition. This study offers insights into the molecular-level biosynthesis of terpenoids and 2-PE in Peonia taxa, and provides the basis for the functional characterization, breeding, and bioengineering of prospective candidate genes for the production of floral volatiles in the Paeonia genus.

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Variation in Ploidy and Karyological Diversity in Different Herbaceous Peony Cultivar Groups

Cited by 10 publications

References 14 publications

Achievements in world and domestic breeding of peonies (<i>Paeonia</i> L.)

Achievements in world and domestic breeding of peonies (<i>Paeonia</i> L.)

Germplasm resources and genetic breeding of Paeonia: a systematic review

Integration of RNA-Seq and Metabolite Analysis Reveals the Key Floral Scent Biosynthetic Genes in Herbaceous Peony

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