内容摘要：They added: "After lengthy negotiations and following urgent gas works, we began our works on 7 April and completed on 2 May.

They added: "After lengthy negotiations and following urgent gas works, we began our works on 7 April and completed on 2 May.

As it is a gene only on the X chromosome, in this case controlling the pigment production, then one missing piece of DNA is enough to turn a cat fully ginger.In comparison female cats have two X chromosomes so the DNA needs to be missing in both chromosomes to increase lighter pigment production to the same extent - it means a mixed colouring is more likely.

"These ginger and black patches form because, early in development, one X chromosome in each cell is randomly switched off," explains Prof Hiroyuki Sasaki, geneticist at Kyushu University."As cells divide, this creates areas with different active coat colour genes, resulting in distinct patches."Although couched in science, the study originally started off as a passion project for Professor Sasaki.

He had retired from his university post, but as a cat lover said he wanted to continue working to uncover the orange cat gene in the hope it could "contribute to the overcoming of cat diseases".He and his team raised 10.6m yen (£55,109) via crowdfunding for the research from thousands of fellow cat lovers across Japan and the world.

One contributor wrote: "We are siblings in the first and third grades of elementary school. We donated with our pocket money. Use it for research on calico cats."

The ARHGAP36 gene is also active in many other areas of the body including the brain and hormonal glands, and is considered important for development.Since then, the Australian government has repeatedly called for his release.

"We'll continue to make representations to the reprehensible regime of [Russian President] Vladimir Putin on behalf of Mr Jenkins," Australian Prime Minister Anthony Albanese told 9News in April.In March, a British man James Scott Rhys Anderson was jailed for 19 years by a Russian military court after being charged with terrorism and mercenary activity, becoming the first British national convicted by Russia during the war.

The 22-year-old was captured last November in Russia's Kursk region - where Ukrainian forces began a surprise incursion last August before retreating in recent months.Just before launching a full-scale invasion of Ukraine in February 2022, Russian President Vladimir Putin recognised all of Luhansk and Donetsk as independent of Ukraine. Russian proxy forces began an insurgency there in 2014.