A, Phylogenetic tree based on an alignment of
peanut STY kinase (STY, accession no. AY027437) with putative protein
kinase from Arabidopsis (accession no. AC006403) and 13 related
proteins. GenBank accession numbers are: ATN 1 (Arabidopsis), S61766;
sp1A (D. discoideum), P18160; EDR 1 (barley [Hordeum
vulgare]), AAG31142; MAP3K (Arabidopsis), AA7459; TCTR2
(Lycopersicum esculentum), T06576; CTR1 (Arabidopsis),
Q05609; CTR1 (L. esculentum), AAD10057; K (Fagus
sylvatica), CAA66149; PK6 (soybean), S29851; MLK1 (human), P80192;
MLK2 (human), Q02779; DLK (Rattus norvegicus), JC53399; and
DLK (human), NP 00472. Protein sequences were aligned using the
ClustalW. Distance trees were calculated using the neighbor-joining
method. The lengths of the branches are proportional to the degree of
divergence and thus correspond to the statistical significance of the
phylogeny between the protein sequences. B, Southern-blot analysis STY
kinase. Genomic DNA (20 μg) from immature peanut seed was digested
with EcoRI (lane 1), SacI (lane 2), and
BamHI (lane 3), separated on 0.8% (w/v) agarose
gel, and probed with full-length STY kinase cDNA at high-stringency
conditions (hybridization at 65°C, and washes at 65°C and 0.1×
SSC).