TY - JOUR
T1 - Reduction of species in the wild potato Solanum section Petota series Longipedicellata : AFLP, RAPD and chloroplast SSR data
AU - van den Berg, R.G.
AU - Bryan, G.J.
AU - del Rio, A.
AU - Spooner, D.M.
PY - 2002
Y1 - 2002
N2 - Species boundaries were assessed with three molecular markers [AFLPs, RAPDs and chloroplast simple sequence repeats (cpSSRs)] for all six species of wild potatoes (Solanum section Petota) assigned to ser. Longipedicellata: Solanum fendleri, S. hjertingii, S. matehualae, S. papita, S. polytrichon and S. stoloniferum. These tetraploid (2n = 4x = 48) species grow in the southeastern United States (S. fendleri) and Mexico (all six species), and a recent morphological analysis supported only three species: (1) S. polytrichon, (2) S. hjertingii (including S. matehualae) and (3) S. stoloniferum (including S. fendleri and S. papita). We analyzed all six species of ser. Longipedicellata (tetraploid) and also analyzed diploids in ser. Bulbocastana, ser. Pinnatisecta, ser. Polyadenia and ser. Tuberosa; tetraploids in ser. Acaulia and hexaploids in ser. Demissa. Concordant with morphological data, AFLP and RAPD results support the synonymy of S. hjertingii and S. matehualae, and completely intermix S. papita and S. fendleri. However, accessions of S. stoloniferum have a tendency to cluster but with exceptions, and S. polytrichon is completely intermixed with S. fendleri and S. papita. The cpSSRs fail to distinguish any of the species in ser. Longipedicellata. Combined morphological and molecular data support only two species in ser. Longipedicellata: S. hjertingii and S. stoloniferum.
AB - Species boundaries were assessed with three molecular markers [AFLPs, RAPDs and chloroplast simple sequence repeats (cpSSRs)] for all six species of wild potatoes (Solanum section Petota) assigned to ser. Longipedicellata: Solanum fendleri, S. hjertingii, S. matehualae, S. papita, S. polytrichon and S. stoloniferum. These tetraploid (2n = 4x = 48) species grow in the southeastern United States (S. fendleri) and Mexico (all six species), and a recent morphological analysis supported only three species: (1) S. polytrichon, (2) S. hjertingii (including S. matehualae) and (3) S. stoloniferum (including S. fendleri and S. papita). We analyzed all six species of ser. Longipedicellata (tetraploid) and also analyzed diploids in ser. Bulbocastana, ser. Pinnatisecta, ser. Polyadenia and ser. Tuberosa; tetraploids in ser. Acaulia and hexaploids in ser. Demissa. Concordant with morphological data, AFLP and RAPD results support the synonymy of S. hjertingii and S. matehualae, and completely intermix S. papita and S. fendleri. However, accessions of S. stoloniferum have a tendency to cluster but with exceptions, and S. polytrichon is completely intermixed with S. fendleri and S. papita. The cpSSRs fail to distinguish any of the species in ser. Longipedicellata. Combined morphological and molecular data support only two species in ser. Longipedicellata: S. hjertingii and S. stoloniferum.
KW - AFLP
KW - Chloroplast simple sequence repeat
KW - Potato
KW - RAPD
KW - Solanum section Petota series Longipedicellata
KW - SSR
U2 - 10.1007/s00122-002-1054-6
DO - 10.1007/s00122-002-1054-6
M3 - Article
SN - 0040-5752
VL - 105
SP - 1109
EP - 1114
JO - Theoretical and Applied Genetics
JF - Theoretical and Applied Genetics
ER -