As Les Bleus continue their journey towards the World Cup held in France later this year, Dumortier stands in for Gabin Villiere, who was ruled out of the whole championship with a fibula fracture.
Thomas Ramos was named at fullback by head coach Fabien Galthie on Thursday at the expense of Melvyn Jaminet, who does not even feature in the 23-man squad.
Gael Fickou and Yoram Moefana will pair up at centre.
"We finished second twice in a row before winning it with a Grand Slam (last year) but our journey is not finished," Galthie told a news conference.
"We are going to get better because our team has not yet reached the age of maturity," he added, looking ahead to the September 8th-October 28th World Cup, after the team welcomed the disgraced Bernard Laporte at their training camp.
"Our mission is a purely sporting one. Last night we invited Bernard, because if France organise the World Cup, it's thanks to him," general manager Raphael Ibanez said.
"And that's where the deep motivation of our players comes from. The staff, it's him, too."
Laporte resigned as president of the French rugby federation (FFR) last Friday after being convicted of influence peddling and illegally acquiring assets last December.
Team:
15-Thomas Ramos, 14-Damian Penaud, 13-Gael Fickou, 12-Yoram Moefana, 11-Ethan Dumortier, 10-Romain Ntamack, 9-Antoine Dupont - captain; 8-Gregory Alldritt, 7-Charles Ollivon, 6-Anthony Jelonch, 5-Paul Willemse, 4-Thibaud Flament, 3-Uini Atonio, 2-Julien Marchand, 1-Cyril Baille
Replacements: 16-Gaetan Barlot, 17-Reda Wardi, 18-Sipili Falatea, 19-Romain Taofifenua, 20-Thomas Lavault, 21-Sekou Macalou, 22-Nolan Le Garrec, 23-Matthieu Jalibert
ITALY
Tommaso Allan has been named at flyhalf for Italy as coach Kieran Crowley’s side look to build on a successful autumn international series.
Harlequins pivot Allan will be partnered by Gloucester scrumhalf Stephen Varney, with Luca Morisi and Juan Ignacio Brex making up the midfield. Livewire fullback Ange Capuozzo is part of a back three that also includes wings Pierre Bruno and Tommaso Menoncello.
The latter is one of nine players from the Benetton club in the starting XV, including seven from the forward pack.
The odd one out is London Irish prop Danilo Fischetti, who will pack down with Simone Ferrari and hooker Giacomo Nicotera. The second row comprises Niccolo Cannone and Federico Ruzza.
Lorenzo Cannone is at number eight and will be behind flankers Sebastian Negri and captain Michele Lamaro.
"We have worked well in these two weeks in camp," Crowley said in a media release on Friday. "We will face the team that won the last Six Nations. We are trying to build on the work we have done to create our own identity and the way we play by focusing on our performance with the goal of showing the best version of ourselves."
Italy claimed a first Six Nations win in seven years when they defeated Wales 22-21 in Cardiff in their final fixture last season, ending a 36-game losing streak in the competition.
They followed that up with a historic first victory over Australia in the autumn internationals.
Team:
15-Ange Capuozzo, 14-Pierre Bruno, 13-Juan Ignacio Brex, 12-Luca Morisi, 11-Tommaso Menoncello, 10-Tommaso Allan), 9-Stephen Varney, 8-Lorenzo Cannone, 7-Michele Lamaro – captain, 6-Sebastian Negri, 5-Federico Ruzza, 4-Niccolò Cannone, 3-Simone Ferrari, 2-Giacomo Nicotera, 1-Danilo Fischetti
Replacements: 16-Luca Bigi, 17-Federico Zani, 18-Pietro Ceccarelli, 19-Edoardo Iachizzi, 20-Giovanni Pettinelli, 21-Manuel Zuliani, 22-Alessandro Fusco, 23-Edoardo Padovani
