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Characterization of the complete chloroplast genome of Begonia fimbristipula (Begoniaceae).

ABSTRACT: Begonia fimbristipula is a plant of perennial flowering plants in the family Begoniaceae. In this article, the complete chloroplast genome of B. fimbristipula was studied and illustrated to add more genetic information. The chloroplast genome is 169,436 bp in length as the circular, which exhibits a large single-copy region (LSC) of 77,058 bp, a small single-copy region (SSC) of 18,128 bp, and a pair of inverted repeat regions (IRs) of 37,123 bp in each. The overall nucleotide composition of chloroplast genome is: 31.8% A, 32.6% T, 18.0% C, 17.5% G, and the total GC content 35.5%. A total of 142 genes were annotated that included 91 protein-coding genes (PCGs), 43 transfer RNA (tRNAs), and 8 ribosome RNA (rRNAs). Phylogenetic relationship shows that Begonia fimbristipula is more closely related to Begonia pulchrifolia on genetic relationships using the Maximum-Likelihood (ML) method.

SUBMITTER: Huang L

PROVIDER: S-EPMC7748561 | biostudies-literature |

REPOSITORIES: biostudies-literature

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The complete chloroplast genome sequence of begonia (Begoniaceae).

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The complete chloroplast genome and phylogenetic analysis of Begonia pulchrifolia, a near endangered Begoniaceae plant.

Project description:Begonia pulchrifolia is a perennial herb of the genus Begonia and is a near endangered species. Traditional morphological delimitation of B. pulchrifolia is sometimes confused with similar species; therefore, further systematic classification is urgently needed. To enrich the genetic information and guide its molecular identification, the complete chloroplast genome of B. pulchrifolia was sequenced and illustrated. The complete chloroplast genome has a total length of 169,589?bp, containing a large single-copy (LSC, 76,057?bp) and a small single-copy region (SSC, 18,320?bp) separated by a pair of inverted repeat (IRS, 37,606?bp) regions. The overall GC content is 35.56%. A total of 142 genes were annotated, including 91 protein coding genes, 8 rRNA genes and 43 tRNA genes. Phylogenetic analysis showed that B. pulchrifolia is more closely related to Momordica charantia and Gomphogyne cissiformis. This study enriches the genetic information of B. pulchrifolia and contributes to its accurate molecular identification.

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The complete chloroplast genome sequence of Begonia coptidifolia.

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Development and characterization of microsatellite markers for Central American Begonia sect. Gireoudia (Begoniaceae).

Project description:UNLABELLED: PREMISE OF THE STUDY:Transcriptome sequence data were used to design microsatellite primers for two widespread Central American Begonia species, B. heracleifolia and B. nelumbiifolia, to investigate population structure and hybridization. • METHODS AND RESULTS:The transcriptome from vegetative meristem tissue from the related B. plebeja was mined for microsatellite loci, and 31 primer pairs amplified in the target species. Fifteen primer pairs were combined in two multiplex PCR reactions, which amplified an average of four alleles per locus. • CONCLUSIONS:The markers developed will be a valuable genetic resource for medium-throughput genotyping of Central American species of Begonia sect. Gireoudia. A subset of these markers have perfect sequence matches to Asian B. venusta, and are promising for studies in other Begonia sections.

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Project description:The taxonomic treatment of Begoniaceae for the state of Bahia, Brazil, led to the recognition of three new species of Begonia with narrow distributions, which are described and illustrated here: Begoniadelicata Gregório & J.A.S. Costa, sp. nov. is a herb restricted to the region of the Recôncavo; Begoniaelianeae Gregório & J.A.S. Costa, sp. nov. is a shrub endemic to the Atlantic forest of the southern part of the state; and Begoniapaganuccii Gregório & J.A.S. Costa, sp. nov. is a subshrub known only from the type material, collected in the Piedmont of Paraguaçu. Notes on morphology, comparisons with morphologically similar species, etymology, geographic distribution, habitat and phenological data for each species are also presented. Furthermore, keys are provided as an aid to separating the new species from congeneric species that occur in their surroundings. Due to the sparse knowledge of the new species, there is as yet insufficient data to accurately assess their conservation status.

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Begonia guangdongensis, a new species of Begonia (Begoniaceae) from Guangdong, China.

Project description:A new species of Begonia section Coelocentrum, B. guangdongensis W.H. Tu, B.M. Wang & Y.L. Li from Guangdong Province, China, is described and illustrated here. Morphologically, the new species is most similar to B. biflora T. C. Ku and B. longistyla Y. M. Shui & W. H. Chen, but differs from B. biflora by its rugose leaves and glabrous capsules and from B. longistyla by its glabrous stipules without ciliate margin, densely hirsute-pilose leaves and obtuse apex of bracts. Additionally, it is also somewhat similar to B. chongzuoensis Yan Liu, S. M. Ku & C.-I Peng, but there are significant distinctions in their stipules, leaves and bracts. The conservation status of B. guangdongensis is assessed as Critically Endangered (CR), according to the IUCN Red List Categories and Criteria.

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Recircumscription of Begonia sect. Baryandra (Begoniaceae): evidence from molecular data.

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