Plant Inbreeding vs Outbreeding

Question 1

what happens in inbreeding?

Answer 1

increased homozygosity and deficiency of heterozygotes
doesn’t alone change gene frequency or reduce genetic variance
expose deleterious recessive genes to selection

Question 2

what does inbreeding do in combo with genetic drift?

Answer 2

leads to gene fixation and reduced genetic variability

Question 3

what does shared ancestry result in?

Answer 3

inbreeding

Question 4

what are the equilibriums and how cab inbreeding be quantified?

Answer 4

AA(p2+fpq), Aa(2pq(1-f)), aa(q2+fpq)

inbreeding quantified by parameter ‘f’ which measures the extent of departure from H-W

Question 5

whats an example to promote inbreeding?

Answer 5

cleistogamy - self fertilisation

Question 6

example to prevent inbreeding?

Answer 6

self-incompatibility

Question 7

types of self-incompatibility?

Answer 7

hetromorphic - distyl, tristyl
homomorphic - gameotophytic (limits potential fitness by limiting mate availablilty)
- sporophytic (provides even worse scenarios for fitness, more allele variation improves the situation)

Question 8

what is reduced with loss of self-incomptibility in Leavenworthia alabamica?

Answer 8

inbreeding depression

genetic variation also lost

Question 9

whats the overall conculsion?

Answer 9

plants will be inbred or outbred but not both at the same time