00:02
In this problem, we have a bread wheat species, triticum istivum, which is an aloexyploid containing two sets of chromosomes from each of three different parent species.
00:19
So now that is the product we have down here, where you can see the diploid number is 2n equals 24.
00:26
Genetic analysis suggests that the three species pictured tritcom monocum, wild tritcom species, and wild triticum species, each contributed chromosome sets to the product.
00:46
Evidence also indicates that the first polyploid event was a spontaneous hybridization of the early cultivated wheat species, triticum monicum and a wild tritcum grass species.
00:59
So we want to draw a diagram of the possible chain of events that produced the triticum east of om species.
01:10
So we start here with our three parents represented as aa for t.
01:15
Monacum.
01:17
B .b.
01:19
For wild triticum species 2.
01:22
And dd for wild triticum species 3.
01:28
So let's begin with two possible parents.
01:33
We'll take our first triticum species, who has a diploid number of 14...