TY - JOUR
T1 - Interspecific evolution in plant microsatellite structure
AU - Barrier, Marianne
AU - Friar, Elizabeth
AU - Robichaux, Robert
AU - Purugganan, Michael
N1 - Funding Information:
The authors thank Bruce Baldwin for providing us with some DNA samples for this study, and J. Mark Porter for helpful discussions. This work was supported by a grant from the National Science Foundation to M.D.P. and R.H.R. and from the Alfred P. Sloan Foundation to M.D.P.
PY - 2000/1/4
Y1 - 2000/1/4
N2 - Several intragenically linked microsatellites have been identified in the floral regulatory genes A. sandwicense APETALA1 (ASAP1) and A. sandwicense APETALA3/TM6 (ASAP3/TM6) in 17 species of the Hawaiian and North American Madiinae (Asteraceae). Thirty-nine microsatellite loci were observed in the introns of these two genes, suggesting that they are hotspots for microsatellite formation. The sequences of four of these microsatellites were mapped onto the phylogenies of these floral regulatory genes, and the structural evolution of these repeat loci was traced. Both nucleotide substitutions and insertion/deletion mutations may be responsible for the formation of perfect microsatellites from imperfect repeat regions (and vice versa). (C) 2000 Published by Elsevier Science B.V. All rights reserved.
AB - Several intragenically linked microsatellites have been identified in the floral regulatory genes A. sandwicense APETALA1 (ASAP1) and A. sandwicense APETALA3/TM6 (ASAP3/TM6) in 17 species of the Hawaiian and North American Madiinae (Asteraceae). Thirty-nine microsatellite loci were observed in the introns of these two genes, suggesting that they are hotspots for microsatellite formation. The sequences of four of these microsatellites were mapped onto the phylogenies of these floral regulatory genes, and the structural evolution of these repeat loci was traced. Both nucleotide substitutions and insertion/deletion mutations may be responsible for the formation of perfect microsatellites from imperfect repeat regions (and vice versa). (C) 2000 Published by Elsevier Science B.V. All rights reserved.
KW - Adaptive radiation
KW - Floral regulatory genes
KW - Hawaiian silversword alliance
KW - Imperfect microsatellites
KW - Simple sequence repeats
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U2 - 10.1016/S0378-1119(99)00463-1
DO - 10.1016/S0378-1119(99)00463-1
M3 - Article
C2 - 10607903
AN - SCOPUS:0033991939
VL - 241
SP - 101
EP - 105
JO - Gene
JF - Gene
SN - 0378-1119
IS - 1
ER -