Hi Magaly,

I assume that you are referring to this type of tobacco cv.: Nicotiana tabacum L. cv. Petit Havana SR1. We simply call them SR1 tobacco. Many labs use them for research due to its small architecture (as oppose to cv. Wisconsin 38).

I saw your institute is located in the US, so you can start with this company (see website): http://www.arabidopsis.com/main/cat/seeds/tobacco/!ts.html

If you just need some free seeds to start your research, you can also email Plant Gene Expression Center (USDA-ARS, located at Albany, CA) greenhouse manger to ask for some. They have wild type (non-transgenic) SR1 tobacco seed stock.

Good luck,

Thank you Yuan-Yeu.

Magaly

Hello,

I have a basic doubt. Kindly reply if anybody knows it. Is there any difference between Nicotiana tabacum cv.Petite havana and Nicotiana tabacum cv.petite havana SR1???

Thanks!

Hi all. I am afraid there is a bit of misunderstanding. There are more cultivars called 'Havana' or so. One of them is also 'Petit Havana', and indeed, this one is popular among labs. However, as far as I am aware of, some people use wild-type cultivar, and some others use the SR1, streptomycin-resistant mutant. For how this started, see Maliga et al, 1973: https://www.nature.com/articles/newbio244029a0

(if you have no access, try scihub)