MOSCOW — The lower house of Russia’s parliament on Tuesday adopted the final reading of a bill banning the adoption of Russian children by citizens of countries where gender transition is legal.

The House, the State Duma, also approved a measure calling for a ban on the distribution of materials encouraging people not to have children.

The measures, which must now go to the upper house of Parliament and then to President Vladimir Putin for signing into law, follow a series of acts in recent years suppressing sexual minorities and reinforcing long-held conventional values.

Duma Speaker Vyacheslav Volodin, author of billions of adoptions, said on the messaging app Telegram that “it is extremely important to eliminate possible dangers in the form of gender reassignment that adopted children may face in these countries.

He listed at least 15 countries to which the law would apply, most of them European, but also including Australia, Argentina and Canada. The adoption of Russian children by American citizens was banned in 2012.

The measure banning what it calls propaganda for a child-free system includes fines of up to 5 million rubles (about $50,000).

In recent years, Putin and other senior officials have increasingly called for respect for so-called “traditional values” to counter Western liberalism that has been described as degenerate.

Last year, Russia banned gender transition medical procedures and its Supreme Court declared the LGBTQ+ “movement” extremist.

In 2022, Putin signed a law banning the dissemination of LGBTQ+ information to people of all ages, expanding the ban issued in 2013 on the dissemination of such information to minors.