{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

5 - Disruptive selection AA=p=1 Aa=2pq=(1S aa=q=1 P q=1 P...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Disruptive selection: AA=p²=1 Aa=2pq=(1-S) aa=q²=1 P+q=1     P’+q’=1     Delta P = p’-p (if in equilibrium delta p/q = 0) o P’ = p+dP     o So p+dp+dq+q=1 => 1+dp+dq=1 => dp+dq=0 so dp=-dq Delta q= q’-q o If one increases the other decreases P’= p²(1)+2pq ½ (1-s) / p²(1)+2pq(1-s)+q²(1)      o Total = 1-2pqS Q’= q²(1)+2pq ½ (1-s)/ total o Q²+pq-pqS/total o Q(q+p)-pqs/total o Q-pqs/total      Dq=q’-q o Q-pqs-q(1-2pqs)/1-2pqs o Q-pqs-q+2pq²s/1-2pqs o 2pq²s-pqs/1-2pqs o Pqs(2q-1)/1-2pqs     Q=1/2 then dq=0 and the graph of it will remain a constant straight horizontal line  If q is greater than one half then delta q will go up (diverge from 0, fixation) If q is less than one half then delta q will go down (diverge from 0, extinction) o
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online