Agriculture & Biology
Cheilanthes
80%
Pteridaceae
71%
polyploidy
47%
ferns and fern allies
37%
triploidy
25%
autopolyploidy
16%
plastid DNA
15%
apomixis
15%
allopolyploidy
14%
ploidy
12%
nuclear genome
11%
tetraploidy
11%
diploidy
9%
spores
9%
hybridization
9%
sequence analysis
8%
taxonomy
8%
genome
6%
dosage
6%
enzymes
5%
methodology
3%
Medicine & Life Sciences
Pteridaceae
100%
Polyploidy
60%
Ferns
58%
Triploidy
34%
Apomixis
25%
Plastids
18%
Tetraploidy
16%
Ploidies
14%
Spores
13%
Diploidy
13%
DNA Sequence Analysis
11%
Genome
8%
Mothers
7%
Enzymes
6%
Earth & Environmental Sciences
fern
56%
apomixis
30%
polyploidy
25%
ploidy
24%
plastid
22%
species complex
21%
spore
15%
genome
14%
dosage
13%
DNA
13%
enzyme
12%
history
8%
method
3%