Reticulate evolution and phylogeography in Asarum sect. Asiasarum (Aristolochiaceae) documented in internal transcribed spacer sequences (ITS) of nuclear ribosomal DNA

Yamaji, Hiroki; Fukuda, Tatsuya; Yokoyama, Jun; Pak, Jae Hong; Zhou, Chang zheng; Yang, Chun shu; Kondo, Kenji; Morota, Takashi; Takeda, Susumu; Sasaki, Hiroshi; Morita, Masayuki

doi:10.1016/j.ympev.2007.01.011

Cited by 37 publications

(33 citation statements)

References 52 publications

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“…In the south, Honshu, Shikoku, and Kyushu were connected to a single unit. Although the deep Tsushima and Korean straits separating them from Korea were not completely closed during the last glaciation, they may have not been too wide to prevent seed dispersal via birds, water, or wind (see, e.g., Yamaji et al, 2007). Indeed, these connections are reflected in our data; populations from southern and central Honshu, Shikoku, Kyushu, and Korea are genetically very similar.…”

Section: Discussionmentioning

confidence: 99%

Genetic structure and phylogeography of a temperate‐boreal herb, Cardamine scutata (Brassicaceae), in northeast Asia inferred from AFLPs and cpDNA haplotypes

Lihová

Kudoh

Marhold

2010

American J of Botany

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Section: Discussionmentioning

confidence: 99%

Genetic structure and phylogeography of a temperate‐boreal herb, Cardamine scutata (Brassicaceae), in northeast Asia inferred from AFLPs and cpDNA haplotypes

Lihová

Kudoh

Marhold

2010

American J of Botany

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“…The ITS region has been successfully used to infer phylogeographic patterns in a wide range of species (Jeandroz et al 1997; Manos et al , 1999; Rodriguez-Lanetty and Hoegh-Guldberg, 2002; Duran et al , 2004; Lorenz-Lemke et al , 2005; Koehler-Santos et al , 2006; Nettel and Dodd, 2007; Yamaji et al , 2007). Furthermore, since the ITS region is flanked by well-conserved rRNA genes, universal primers can be used for widely different plant groups, thereby avoiding the need for developing specific primer sets, as is the case for SSR markers.…”

Section: Introductionmentioning

confidence: 99%

The use and limits of ITS data in the analysis of intraspecific variation in Passiflora L. (Passifloraceae)

et al. 2009

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The discovery and characterization of informative intraspecific genetic markers is fundamental for evolutionary and conservation genetics studies. Here, we used nuclear ribosomal ITS sequences to access intraspecific genetic diversity in 23 species of the genus Passiflora L. Some degree of variation was detected in 21 of these. The Passiflora and Decaloba (DC.) Rchb. subgenera showed significant differences in the sizes of the two ITS regions and in GC content, which can be related to reproductive characteristics of species in these subgenera. Furthermore, clear geographical patterns in the spatial distribution of sequence types were identified in six species. The results indicate that ITS may be a useful tool for the evaluation of intraspecific genetic variation in Passiflora.

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“…The process is called reticulate evolution (Goodspeed, 1947; Stebbins, 1950; for review: Rieseberg and Noyes, 1998; Marhold and Lihová, 2006). Reticulate evolution is frequently reported in plants (e.g., Rieseberg, 1991; Timme et al, 2007; Yamaji et al, 2007), and disentangling the reticulate relationships is crucial to understanding the evolution of these taxa, but it is not an easy task.…”

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confidence: 99%

Molecular evidence of reticulate evolution in the subgenus Plantago (Plantaginaceae)

Ishikawa

Yokoyama

Tsukaya

2009

American J of Botany

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Polyploidization is a frequent evolutionary event in plants that has a large influence on speciation and evolution of the genome. Molecular phylogenetic analyses of the taxonomically complex subgenus Plantago were conducted to elucidate intrasubgeneric phylogenetic relationships. A nuclear-encoding single-copy gene, SUC1 (1.0-1.8 kb), was sequenced in 24 taxa representing all five sections of the subgenus Plantago and two taxa from subgenus Coronopus as the outgroup. Fifteen known polyploids and one putative polyploid were sampled to examine polyploid origins and occurrence of reticulate evolution by cloning and sequence analysis of SUC1. Phylogenetic relationships were estimated using maximum parsimony, neighbor-joining, and Bayesian analyses. For the first time, our analysis provides a highly resolved phylogenetic tree. Subgenus Plantago formed a well-supported monophyletic clade. In contrast, alleles from polyploid species were scattered across the whole SUC1 phylogenetic tree, and some independent allopolyploids originated from hybridization between distant lineages. One reason for this taxonomic complexity can be attributed to reticulate evolution within the subgenus Plantago. Our results also suggest the possibility of two independent long-distance dispersals between the northern and southern hemispheres.

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Reticulate evolution and phylogeography in Asarum sect. Asiasarum (Aristolochiaceae) documented in internal transcribed spacer sequences (ITS) of nuclear ribosomal DNA

Cited by 37 publications

References 52 publications

Genetic structure and phylogeography of a temperate‐boreal herb, Cardamine scutata (Brassicaceae), in northeast Asia inferred from AFLPs and cpDNA haplotypes

Genetic structure and phylogeography of a temperate‐boreal herb, Cardamine scutata (Brassicaceae), in northeast Asia inferred from AFLPs and cpDNA haplotypes

The use and limits of ITS data in the analysis of intraspecific variation in Passiflora L. (Passifloraceae)

Molecular evidence of reticulate evolution in the subgenus Plantago (Plantaginaceae)

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