Related Experiment Video
Updated: Feb 1, 2026

Repeatable Stair-step Assay to Access the Allelopathic Potential of Weedy Rice Oryza sativa ssp.
Published on: January 28, 2020
An overview on reproductive isolation in Oryza sativa complex
Sadia Nadir1,2,3, Sehroon Khan3,4, Qian Zhu1
1Rice Research Institute, Yunnan Agriculture University, Kunming, Yunnan, China.
Abstract:
Reproductive isolation is generally regarded as the essence of the speciation process. Studying closely related species is convenient for understanding the genetic basis of reproductive isolation. Therefore, the present review is restricted to the species and subspecies of the Oryza sativa complex, which includes the two domestic rice cultivars and six wild species. Although closely related, these rice species are separated from each other by a range reproductive barriers. This review presents a comprehensive understanding of the forces that shaped the formation of reproductive barriers among and between the species of the O. sativa complex. We suggest the possibility that domestication and artificial breeding in these rice species can lead to the early stages of speciation. Understanding the evolutionary and molecular mechanisms underlying reproductive isolation in rice will increase our knowledge in speciation and would also offer practical significance for the implementation of crop improvement strategies.
Related Concept Videos
Overview of the Reproductive System
The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...
Complexation Equilibria: Overview
The equilibrium constant of the complexation reaction is represented as the formation constant...
Reproductive Cloning
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic...
Overview Of Cell Separation And Isolation
Asexual Reproduction
Disorders of the Female Reproductive System

