Some times two plant species which are morphologically different have similar DNA sequences. What should be the final conclusion?
@ Abhijeet Singh,
Yes I have heard and read about human and chimpanzee. Please note that these are TWO DIFFERENT GENERA.
Read the question carefully, it is about two different species.
If they are two different species, surely they can have even higher percentage of DNA sequence similarity. That is the reason I was referring to the DNA sequence similarity between two genus.
@ Abhijeet Singh ,
Does it mean that we cannot differentiate TWO DIFFERENT SPECIES, on the basis of DNA sequencing. Because as you mentioned that two different species have more DNA sequence similarity than two different genera.
No, I did not say that. Of course, it is possible to differentiate two species based the marker sequences. And sharing DNA sequence similarity does not mean the sequences are identical. There are variations in the DNA sequences for individual species, and for utilizing such markers as taxonomic markers a validation experiment must be performed.
Sequence similarity != Sequence identity.
@ Abhijeet Singh ,
you have mentioned " it is possible to differentiate two species based the marker sequences".
Is it possible even if the different species have more than 96 % similar DNA sequences?
Can you please tell me what do you understand by molecular marker?
And what do you mean by 96 % similar DNA sequences? What is this similarity based on? Which marker/gene, or genome?
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