Blog Post #8

Blog Post #8

    We've noticed that the leaves' phenotype in the Brassica oleracea plants has a big variation. In color and shape. Some are round and others have a squiggly form. Some look fern green and others look like emerald green.  The round ones are shaped like an oval. Nice and smooth, and they consist of one color more or so. While the other leaves are pointy and squiggly with a purple outside.

During our further examination, we found that the Leaves have the same size despite all of the different features. This might of happened by the plants knowing what the perfect size to release CO2 and form into something else when ready. For instance, the average of all the leaves on the collards are 8 cm wide and 10 cm long, the Broccoli is 7.5 cm wide and 11 cm long, and on the cabbage are 9 cm wide and 9 cm long.

If a farmer wanted to change the size of the leaves you would have to plant it in a different way, like not in the same ecosystem or water it differently. This also can be genetically engineered to come out different but you may make a different plant when doing so. There is so much natural variations in these plants because we have domesticated them. By doing that, we changed the ecosystem that they grow in and changed how they got water and everything. That is called artificial selection. The mutations help the plants be more filling when we eat them. We use selective breeding to choose which traits we want to keep and which ones we don't. Meaning that we tend to pic the thicker ones than the dry scrawny ones. 

Blog Post 8

Blog Post 8: A Matter of Selection by Gabriella Lasserre 

We analyzed many different brassica oleracea in the garden when we were doing the story of the seed projects. I noticed that the anatomy of the plants that had the most variation was probably the leaves. They diversitized in the shape of the leaves. Some were shorter and fatter, while others were long, slim, and lanky. Some of the leaves even measured a few inches longer than others. Most of the leaves didn't have a very smooth and clean-cut look to them. They seemed quite jagged and bumpy to the touch.

I think the cause of all the genetic variability in the plants happens for a few reasons. the gene pool is randomly sorted to give genes just out of chance to the plants. There is also the allele frequency. which is also by chance. You really don't know where or when a gene will show up in a certain plant, and whether or not it could possibly result as a genetic mutation.

After taking measurements of the plants in our garden, we discovered that the brussell sprouts were 3 feet tall, the kohlrabi was 1 ft. 2 in. tall, the cauliflower was 11 in. tall, the kale was 2 ft. 7 in. tall, the cabbage was 10 in. tall, and our brassica oleracea, the tallest in the planter box at 3 ft. 1 in. I think some of the reason why some plants grew taller and bigger than others was the fact that they were engaging in competition, competing for things like nutrients, food, water, sunlight, ect. Some of the plants just naturally had larger buds on them and were predicted to take up a larger space as the normally do.

I think the leaves were very consistent in staying the same for all of the plants in the garden. When we analyzed them, a lot of them stayed really healthy and hydrated throughout the year, and the plants that didn't survive just had their leaves all died out and brown in the end.

I think plant breeders would ave to mix very vast leaves of different plants together because they are all very similar in the sense of how they look and feel, and even taste. Breeders would definitely have to experiment with different types of plants and analyze the gene pools to see which plants had what alleles so they could randomize to result in a different looking plant, or possibly even a new species.

Being able to see our plants mature throughout the seasons and see their growth was a really cool experience. I think students will really like the idea of being able to care for and study these interesting plants in the years to come. We got to understand the environment they lived in more and factors that helped out the plants and ones that didn't so much.