Question

Inbreeding depression is mainly related with

• A. Self pollinated crop
• B. Cross pollinated crop
• C. Vegetatively propagated crop
• D. None of the above

Answer 1

The correct option is A Self pollinated crop

Inbreeding is defined as mating between individuals that are genetically related. Thus, inbreeding depression is the reduced biological fitness in a given population as a result of breeding of related individuals and since Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower or another flower on the same plant. So, self-pollinated crops lead to inbreeding depression. Inbreeding depression causes delayed gametogenesis, pollen viability and plant sterility. Over time, an individual carrying a single recessive deleterious allele can easily pass it to the next generation. when the population becomes small, and the relatives mate, the offspring may inherit two copies of the same recessive deleterious allele and suffer the consequences of expressing the deleterious allele.

So, the correct answer is option A.