Indel patterns of the plastid DNA trnL-trnF region within the genus Poa (Poaceae)

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Authors

STONEBERG HOLT Sierra Dawn HOROVÁ Lucie BUREŠ Petr

Year of publication 2004
Type Article in Periodical
Magazine / Source Journal of Plant Research
MU Faculty or unit

Faculty of Science

Citation
Web http://www.springerlink.com/index/10.1007/s10265-004-0172-4
Field Botany
Keywords Indel patterns; infrageneric variability; Poa; Poaceae; trnL intron; trnL-trnF IGS
Description The use of insertion/deletion (indel) patterns from sequences of the trnL intron and trnL-F intergenic spacer (IGS) in finding plastid genome types of the genus Poa L. was studied. New sequences for 23 taxa (P. alpina, P. badensis, P. bulbosa, P. crassipes, P. molinerii, P. annua, P. chaixii, P. granitica, P. pratensis, P. sibirica, P. remota, P. botryoides, P. cenisia, P. compressa, P. laxa, P. margilicola, P. media, P. nemoralis, P. palustris, P. pannonica, P. pirinica, P. riphaea, and P. sejuncta) and 18 previously published sequences, which represent 11 of the 13 sections listed for Poa in Flora Europaea, were investigated. Indel patterns, despite sampling less than 0.7 % of the plastid genome, produced four taxa groupings that were congruent with the major divisions obtained in intensive, previously published restriction site studies. Insertion/deletion events in the trnL intron and trnL-trnF IGS were in nearly all cases unique to a single pattern group and thus provided almost no information about relationships among these groups. Indels did, however, provide a meaningful infrageneric classification criterion for Poa. They can serve as useful tools in studying relationships within this genus.
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