Transgenic-list (tg-I)

The transgenic-list [tg-l] is hosted at the ISTT web server


The list address is:

You can subscribe to the tg-list here.

About the transgenic list (tg-list):

The transgenic-list (commonly referred to as the tg-l) was created by Peter Sobieszczuk in 1996, to serve the global research community specializing in genetic modifications of laboratory animals. Since then, three academic institutions have hosted the tg-l: the IGBMC in Strasbourg, France; the University of Manchester, UK; and the Imperial College in London, UK. In 2011, Peter Sobieszczuk and the ISTT agreed to move the list to the ISTT web server. The ISTT would like to acknowledge the excellent work of Peter and his assistants in maintaining the list for the benefit of everyone who has been a part of this list. The tg-l has proven to be a valuable source of knowledge and advice, helping many newcomers to the field of animal transgenesis, and facilitating the exchange of protocols and experiences among all of its members.

The ISTT is most proud to host the tg-l for the benefit of the entire community of scientists, technicians, students and all others, interested in animal transgenesis. Tg-list members are active researchers at all levels, from graduate students to full professors, as well as technicians, managers, and directors who operate transgenic core facilities. Major keywords cover a wide spectrum of subject areas, including: homologous recombination, targeted mutagenesis, inducible expression, ES cells, microinjection, mouse genetics, CRISPR/Cas9 and animal husbandry, to name just a few.

The tg-l is public (anyone may subscribe, including ISTT members and non-members alike, but subject to email address verification), unmoderated (messages will not be altered by the list administrator) and closed (only subscribers may post messages). The tg-l currently has about 1800 subscribers from all over the world, interested in animal transgenesis.

FAQS for the tg-list

Subscription to the tg-list:

Please visit the tg-list public web site to subscribe. 


Tg-list Archives:

We encourage members to check the archives for answers to common questions prior to posting on the list.  Questions such as "optimal super ovulation times/amounts", "timing for in vitro fertilization", and other questions about general procedures used in transgenic facilities have been discussed numerous times, so you should easily find answers to such questions by sending a query to the archives.

Current tg-list archives (from 22 April, 2017) With our move to a new server, list members can search recent archives by logging in at the public website and then going to the archives.  You will need the password sent to you when you were accepted to the tg-list.

Tg-l archives from 1996 to 22 April, 2017 are available for simple searches by tg-l subscribers (specific password required).  Lluis Montoliu is generously hosting the tg-list archives.  To access the legacy archives, please click here and choose "tg-l simple archive".  Please contact the tg-list administrator to obtain the login ID and Password for the legacy archives. 


Additional Source of Information- the International Society for Transgenic Technologies (ISTT):  

If you are not yet a member of the ISTT, you can join the ISTT and also obtain access to the ISTT.list for additional information.  Click HERE to join.

For any additional questions, please contact the tg-list administrators at ISTT at

What topics have been mostly discussed at the transgenic-list?

Word-cloud graphic created with Wordle, using text included in subjects from all messages posted between inception, in 1996, and September 2014. Words that are used more frequently are more prominently represented.