Origin and Evolution of Artichoke Thistle in California
Origin and Evolution of Artichoke Thistle in California
Origin and Evolution of Artichoke Thistle in California
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3 Primary Studies:<br />
Qualitative traits:<br />
Com<strong>in</strong>g spr<strong>in</strong>g 2008<br />
Genetic analyses:<br />
Visual analysis <strong>of</strong> allelic patterns reveals<br />
with<strong>in</strong>-population uniformity, between<br />
population diversity, particularly <strong>in</strong><br />
<strong>California</strong>.<br />
Between-group diversity <strong>in</strong> regional <strong>and</strong><br />
taxonomic groups (CA, IT,SP,CV).<br />
Italian alleles are not absent <strong>in</strong> CA<br />
5000<br />
4500<br />
4000<br />
3500<br />
3000<br />
2500<br />
2000<br />
1500<br />
1000<br />
500<br />
0<br />
ï Morphology<br />
ï Genetics<br />
ï Aggressiveness<br />
Quantitative traits:<br />
Significant differences<br />
between CA pops <strong>in</strong><br />
emergence times, ultimate<br />
plant size, leaf production,<br />
Receptacle Area Sums<br />
but not <strong>in</strong> vegetative shoot<br />
production.<br />
4700.81<br />
Aggressive populations had<br />
30% greater seed produc<strong>in</strong>g<br />
3301.04<br />
surface area than longestablished<br />
but well-behaved<br />
populations.<br />
Fast Slow<br />
p (T
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