The 25-year-old was found dead in woodland near Somercotes, Derbyshire, in March.
A spokesman for Derbyshire Police said detectives investigating the death of Miss Ashton arrested the suspect at a flat in the nearby Amber Valley area this afternoon.
Mrs Ashton, who lived in Somercotes, Derbyshire, and worked for chocolate-maker Thorntons in nearby Swanwick, disappeared on March 10 and was found dead in nearby woods three days later.
The victim left the Thorntons site shortly after 5pm on Thursday, March 10 and is known to have walked into Sleetmoor Woods, along a path known locally as the 'yellow brick road'.
Her body was found in the woods at 4.30pm on Sunday, March 13 and a £20,000 reward was subsequently offered by an anonymous benefactor for information to catch her killer.
Police believe it was on the path that she met her killer.
Her husband Matthew, 26, was arrested three days after she went missing and held for 48 hours but was later released without charge.
Earlier this month police revealed forensic tests conducted on evidence at the murder scene produced a forensic profile of the killer.
In the days following the killing it emerged that Mr Ashton had spent the night his wife was killed in a Travelodge nearby.
It was claimed he had checked in after leaving work that evening because the couple had been rowing.
But Mr Ashton, who also works from home as a private piano teacher, told his local newspaper that his wife was an 'incredibly happy person' and that the couple 'didn't argue about anything bigger than who was going to mow the lawn or get off the sofa to fetch something'.
He added that they had been discussing starting a family and going travelling and said he would remain at the home they had lovingly renovated because 'it was our first home together and I've got tremendous memories'.
The couple married while still at university in 2006, in Miss Ashton's home province in China.
Mr Ashton said he feared he may never discover why she was murdered. Read More


