Search

Camellia huulungensis Rosmann & Ninh 1997, belonging to the sect. Chrysantha, holds important ornamental value and medicinal value. In this study, the complete chloroplast genome sequence of C. huulungensis was assembled using high-throughput sequencing technology. The entire length of chloroplast genome is 156,546 bp and contains a small single-copy region (18,257 bp), a large single-copy region (86,219 bp), and a pair of inverted repeat regions (26,035 bp). A total of 133 genes were annotated, including 88 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The overall GC content is 37.33%. The phylogenetic analysis showed that C. huulungensis is sister to C. aurea. The results can provide genetic data for further phylogenetic studies of Camellia. [ABSTRACT FROM AUTHOR]

Camellia flava (Pit.) Sealy 1949 is a rare and precious species with golden flowers, which hold important ornamental and breeding values. In this study, the complete chloroplast genome of C. flava is reported for the first time. The chloroplast genome exhibits a typical quadripartite structure with a total length of 156,670 bp and a GC content of 37.32%, including a large single-copy region (86,250 bp), a small single-copy region (18,292 bp), and a pair of inverted repeat regions (26,064 bp). A total of 133 genes, including 88 protein-coding genes, 37 tRNA genes, and 8 rRNA genes were annotated. The phylogenetic analysis revealed a close relationship between C. flava and C. tamdaoensis. The chloroplast genome sequence of C. flava serves as a valuable resource for further breeding research and genetic phylogenetic studies. [ABSTRACT FROM AUTHOR]

This study examines the effects of light emitting diodes (LEDs) on tissue culture proliferation of Acacia melanoxylon plantlets among five different clones (FM1, FM2, FM4, FM5, and FM10). Shoot bud apex cuttings were transplanted onto Murashige and Skoog basal medium containing 0.1 mg L-1 6-benzyladenine and 0.5 mg L-1 naphthalene acetic acid and cultured in vitro for 40 days. Root growth was studied under different light intensities and photoperiods ex vitro. The bud proliferation coefficient was greatest under a light intensity of 45 μmol m-2 s-1 photosynthetic photon flux and photoperiod of 16 h light, but decreased as the light intensity increased. However, the greatest light intensity was beneficial for the growth of robust plantlets. Plantlets exposed to red and blue LED combinations grew tall and green, with a small number of roots. Plantlets also grew taller and some roots expanded under the longer photoperiod. Increased light intensity had positive effects on root number and rooting rate, and prolonged light greatly increased root number. Therefore, lower light intensity and a short photoperiod were beneficial for bud proliferation, while red/blue LED combinations, increased light intensity, and longer light illumination were beneficial for plantlet growth and root growth of Acacia melanoxylon.

Camellia huulungensis Rosmann & Ninh 1997, belonging to the sect. Chrysantha , holds important ornamental value and medicinal value. In this study, the complete chloroplast genome sequence of C. huulungensis was assembled using high-throughput sequencing technology. The entire length of chloroplast genome is 156,546 bp and contains a small single-copy region (18,257 bp), a large single-copy region (86,219 bp), and a pair of inverted repeat regions (26,035 bp). A total of 133 genes were annotated, including 88 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The overall GC content is 37.33%. The phylogenetic analysis showed that C. huulungensis is sister to C. aurea . The results can provide genetic data for further phylogenetic studies of Camellia., Competing Interests: No potential conflict of interest was reported by the author(s)., (© 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.)

Camellia flava (Pit.) Sealy 1949 is a rare and precious species with golden flowers, which hold important ornamental and breeding values. In this study, the complete chloroplast genome of C. flava is reported for the first time. The chloroplast genome exhibits a typical quadripartite structure with a total length of 156,670 bp and a GC content of 37.32%, including a large single-copy region (86,250 bp), a small single-copy region (18,292 bp), and a pair of inverted repeat regions (26,064 bp). A total of 133 genes, including 88 protein-coding genes, 37 tRNA genes, and 8 rRNA genes were annotated. The phylogenetic analysis revealed a close relationship between C. flava and C. tamdaoensis . The chloroplast genome sequence of C. flava serves as a valuable resource for further breeding research and genetic phylogenetic studies., Competing Interests: No potential conflict of interest was reported by the authors., (© 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.)