How self-incompatible species are in severe population bottleneck compared to self-fertile species. Concept introduction: Self-incompatibility is a genetic mechanism in angiosperms , which prevent self-fertilization from inbreeding and promote the generation of new genotypes in plants, and thus encouraging the outcrossing process. This is the major reason for the success of angiosperms on the earth. Selection may favor partial or complete loss of these species, because they develop zero to very low seeds. The females are more likely to receive an inadequate amount of pollen in self-incompatible conditions.

Question

Want to see the full answer?

Answer 1

Question

Chapter 38, Problem 9TYU

Summary Introduction

To determine: How self-incompatible species are in severe population bottleneck compared to self-fertile species.

Concept introduction: Self-incompatibility is a genetic mechanism in angiosperms, which prevent self-fertilization from inbreeding and promote the generation of new genotypes in plants, and thus encouraging the outcrossing process. This is the major reason for the success of angiosperms on the earth. Selection may favor partial or complete loss of these species, because they develop zero to very low seeds. The females are more likely to receive an inadequate amount of pollen in self-incompatible conditions.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

The drooping, bell-like flower Aquilegia canadensis is adapted for cross-pollination. However, if the plant has not been pollinated previously, self-pollination can occur. However, if cross pollination occurs after self-pollination takes place, the pollen from cross pollination reaches the style before the pollen from self-pollination. Using course concepts and vocabulary 1) Provide a reasoning for this phenomenon. 2) Would this adaptation for reproduction be beneficial for the plant?

Flowers whose throats (nectaries) are too long for hummingbirds to reach their nectar are unlikely to be pollinated (nectar reward isn't available) and therefore the flower is unlikely to reproduce. But if the nectaries are too short, hummingbirds can get their nectar without pollinating them because they don't reach in far enough to touch the pollen-carrying anthers, thus no reproduction for the flower. Flowers evolve with an intermediate length of nectaries. This is an example of what sort of selection? Group of answer choices Disruptive Stabilizing Directional Sexual

When tomatoes are fully ripe, they develop bright red skins. William recently built a garden and decided to investigate tomato reproduction. He found that green tomatoes (not fully ripe) have an 18% chance of germinating while red tomatoes (fully ripe) have a 78% chance of germinating. Based on the data provided from the investigation, explain what characteristic(s) contributes to the probability of the tomatoes reproductive success and what factors (genetic or environmental) might impact the growth and development of the tomatoes. Answer should be based on : Claim: includes the idea that characteristic animal behaviors or specialized plant structures affect the probability of successful reproduction. Evidence: supports claim including: -behaviors and/or structures that increase the probability of reproduction -cause and effect relationship between the behavior/structure and the successful reproduction of organisms that have them -plant reproduction and the animal behaviors…