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Plastome phylogenomics of Allaeanthus, Broussonetia and Malaisia (Dorstenieae, Moraceae) and the origin of B. × kazinoki

Journal of plant research, 2022-03, Vol.135 (2), p.203-220 [Peer Reviewed Journal]

The Author(s) under exclusive licence to The Botanical Society of Japan 2022. corrected publication 2022 ;2022. The Author(s) under exclusive licence to The Botanical Society of Japan. ;The Author(s) under exclusive licence to The Botanical Society of Japan 2022. corrected publication 2022. ;ISSN: 0918-9440 ;EISSN: 1618-0860 ;DOI: 10.1007/s10265-022-01369-w ;PMID: 35080694

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  • Title:
    Plastome phylogenomics of Allaeanthus, Broussonetia and Malaisia (Dorstenieae, Moraceae) and the origin of B. × kazinoki
  • Author: Kuo, Wen-Hsi ; Liu, Shih-Hui ; Chang, Chiung-Chih ; Hsieh, Chia-Lun ; Li, Yi-Hsuan ; Ito, Takuro ; Won, Hyosig ; Kokubugata, Goro ; Chung, Kuo-Fang
  • Subjects: Biomedical and Life Sciences ; Broussonetia ; Broussonetia - chemistry ; Broussonetia - genetics ; Deoxyribonucleic acid ; DNA ; Gene sequencing ; Genomes ; Haplotypes ; Hybridization ; Life Sciences ; Moraceae ; Nucleotide sequence ; Papermaking ; Phylogeny ; Phylogeography ; Plant Biochemistry ; Plant Breeding ; Plant Ecology ; Plant Physiology ; Plant Sciences ; Plastomes ; Raw materials ; Regular Paper – Taxonomy/Phylogenetics/Evolutionary Biology ; Ribosomal DNA ; Taxonomy
  • Is Part Of: Journal of plant research, 2022-03, Vol.135 (2), p.203-220
  • Description: Species of Broussonetia have been essential in the development of papermaking technology. In Japan and Korea, a hybrid between B. monoica and B. papyrifera (= B. × kazinoki ) known as kōzo and daknamu is still the major source of raw materials for making traditional paper washi and hanji , respectively. Despite their cultural and practical significance, however, the origin and taxonomy of kōzo and daknamu remain controversial. Additionally, the long-held generic concept of Broussonetia s.l. , which included Sect. Allaeanthus and Sect. Broussonetia , was challenged as phylogenetic analyses showed Malaisia is sister to the latter section. To re-examine the taxonomic proposition that recognizes Allaeanthus , Broussonetia , and Malaisia (i.e., Broussonetia alliance), plastome and nuclear ribosomal DNA (nrDNA) sequences of six species of the alliance were assembled. Characterized by the canonical quadripartite structure, genome alignments and contents of the six plastomes (160,121–162,594 bp) are highly conserved, except for the pseudogenization and/or loss of the rpl22 gene. Relationships of the Broussonetia alliance are identical between plastome and nrDNA trees, supporting the maintenance of Malaisia and the resurrection of Allaeanthus . The phylogenomic relationships also indicate that the monoecy in B. monoica is a derived state, possibly resulting from hybridization between the dioecious B. kaempferi (♀) and B. papyrifera (♂). Based on the hypervariable ndhF-rpl32 intergenic spacer selected by sliding window analysis, phylogeographic analysis indicates that B. monoica is the sole maternal parent of B. × kazinoki and that daknamu carries multiple haplotypes, while only one haplotype was detected in kōzo . Because hybridizations between B. monoica and B. papyrifera are unidirectional and have occurred rarely in nature, our data suggest that daknamu might have originated via deliberate hybrid breeding selected for making hanji in Korea. On the contrary, kōzo appears to have a single origin and the possibility of a Korean origin cannot be ruled out.
  • Publisher: Singapore: Springer Singapore
  • Language: English
  • Identifier: ISSN: 0918-9440
    EISSN: 1618-0860
    DOI: 10.1007/s10265-022-01369-w
    PMID: 35080694
  • Source: MEDLINE
    ProQuest Central
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