Competition affects gene flow from oilseed rape to Brassica rapa

Article Abstract:

A study estimates the F1-hybrid production on a winter variety of oilseed rape (Brassica napus), co-cultivated in the field with weedy Brassica rapa in two different proportions and three different densities. Results indicate that the relative frequency of the two species was a more influential parameter than the density, and that hybridization with B. napus as the female will be most likely at current field densities of B. napus and when B. rapa is an abundant weed.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Fitness of backcross and F2 hybrids between weedy Brassica rapa and oilseed rape (B. napus)

Article Abstract:

Researchers conducted a study to investigate the fitness of backcross and F2 hybrids between weedy Brassica, oilseed rape, and weedy B. rapa. The results showed that the fitness of the offsprings from F2 were reduced relative to their parents. Despite their fitness, some of the F2 offsprings were as fit as their parents. Fitness differences were also seen between backcross and F2 offspring from B. rapa populations.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Progressive introgression between Brassica napus (oilseed rape) and B. rapa

Article Abstract:

Research has been conducted on introgression between oilseed rape and Brassica rapa. The authors have investigated various offspring from maternal plants from the introgressed population via the use of AFLP markers in the effort to describe the progress of this introgression, and they report the high outcrossing rate of the introgressed maternal plants.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: