Abstract
The phylogeny of the subgenus Glycine was reconstructed based on nucleotide sequences of the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA to examine the systematic status of the G. tomentella and G. tabacina species complexes. Rooted at the subgenus Soja (2 species, 7 accessions), parsimony analysis was conducted for 17 species (31 accessions) of the subgenus Glycine, including 9 and 6 populations of G. tomentella s.l. and G. tabacina s.l., respectively. The nrITS phylogeny indicated polyphyly of G. tomentella s.l. as well as G. tabacina s.l. In the G. tomentella species complex, larger legumes, narrower leaflets, and deflexed indumentum hairs differentiated G. dolichocarpa from G. tomentella s.s. The tetraploid G. dolichocarpa (2n=80) and aneuploid G. tomentella (2n= 38) represented independent lineages from another clade of the remaining diploid (2n=40) and tetraploid species with a DD genome type. Tetraploid G. tabacina (2n=80) was closely related to G. dolichocarpa instead of the diploid G. tabacina (2n=40) with a BB genome type. The nrITS phylogeny suggested allopolyploidy of G. dolichocarpa and of the tetraploid G. tabacina, both of which possibly share a common parental species with an AA genome type. Their phylogenetic affinity also indicated biased inheritance of the nrDNA ITS and a possible dominant role of the AA genome. Phylogenetically, G. dolichocarpa and allotetraploid G. tabacina should be recognized as distinct species.
| Original language | English |
|---|---|
| Pages (from-to) | 435-442 |
| Number of pages | 8 |
| Journal | Journal of Plant Research |
| Volume | 114 |
| Issue number | 1116 |
| Publication status | Published - 2001 Dec |
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All Science Journal Classification (ASJC) codes
- Plant Science
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Systematic status of the Glycine tomentella and G. tabacina species complexes (Fabaceae) based on ITS sequences of nuclear ribosomal DNA. / Hsing, Yue le C.; Hsieh, Jaw Shu; Peng, Ching I.; Chou, Chang Hung; Chiang, Tzen-Yuh.
In: Journal of Plant Research, Vol. 114, No. 1116, 12.2001, p. 435-442.Research output: Contribution to journal › Article
TY - JOUR
T1 - Systematic status of the Glycine tomentella and G. tabacina species complexes (Fabaceae) based on ITS sequences of nuclear ribosomal DNA
AU - Hsing, Yue le C.
AU - Hsieh, Jaw Shu
AU - Peng, Ching I.
AU - Chou, Chang Hung
AU - Chiang, Tzen-Yuh
PY - 2001/12
Y1 - 2001/12
N2 - The phylogeny of the subgenus Glycine was reconstructed based on nucleotide sequences of the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA to examine the systematic status of the G. tomentella and G. tabacina species complexes. Rooted at the subgenus Soja (2 species, 7 accessions), parsimony analysis was conducted for 17 species (31 accessions) of the subgenus Glycine, including 9 and 6 populations of G. tomentella s.l. and G. tabacina s.l., respectively. The nrITS phylogeny indicated polyphyly of G. tomentella s.l. as well as G. tabacina s.l. In the G. tomentella species complex, larger legumes, narrower leaflets, and deflexed indumentum hairs differentiated G. dolichocarpa from G. tomentella s.s. The tetraploid G. dolichocarpa (2n=80) and aneuploid G. tomentella (2n= 38) represented independent lineages from another clade of the remaining diploid (2n=40) and tetraploid species with a DD genome type. Tetraploid G. tabacina (2n=80) was closely related to G. dolichocarpa instead of the diploid G. tabacina (2n=40) with a BB genome type. The nrITS phylogeny suggested allopolyploidy of G. dolichocarpa and of the tetraploid G. tabacina, both of which possibly share a common parental species with an AA genome type. Their phylogenetic affinity also indicated biased inheritance of the nrDNA ITS and a possible dominant role of the AA genome. Phylogenetically, G. dolichocarpa and allotetraploid G. tabacina should be recognized as distinct species.
AB - The phylogeny of the subgenus Glycine was reconstructed based on nucleotide sequences of the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA to examine the systematic status of the G. tomentella and G. tabacina species complexes. Rooted at the subgenus Soja (2 species, 7 accessions), parsimony analysis was conducted for 17 species (31 accessions) of the subgenus Glycine, including 9 and 6 populations of G. tomentella s.l. and G. tabacina s.l., respectively. The nrITS phylogeny indicated polyphyly of G. tomentella s.l. as well as G. tabacina s.l. In the G. tomentella species complex, larger legumes, narrower leaflets, and deflexed indumentum hairs differentiated G. dolichocarpa from G. tomentella s.s. The tetraploid G. dolichocarpa (2n=80) and aneuploid G. tomentella (2n= 38) represented independent lineages from another clade of the remaining diploid (2n=40) and tetraploid species with a DD genome type. Tetraploid G. tabacina (2n=80) was closely related to G. dolichocarpa instead of the diploid G. tabacina (2n=40) with a BB genome type. The nrITS phylogeny suggested allopolyploidy of G. dolichocarpa and of the tetraploid G. tabacina, both of which possibly share a common parental species with an AA genome type. Their phylogenetic affinity also indicated biased inheritance of the nrDNA ITS and a possible dominant role of the AA genome. Phylogenetically, G. dolichocarpa and allotetraploid G. tabacina should be recognized as distinct species.
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M3 - Article
VL - 114
SP - 435
EP - 442
JO - Journal of Plant Research
JF - Journal of Plant Research
SN - 0918-9440
IS - 1116
ER -