Take a look here
for information on property held as tenants in common and as joint tenants. As you will see, it is only where a property is held as joint tenants that it automatically passes to the surviving tenant when one of them dies. When your wife died she owned a share of the property as did her daughter. The wlll should stipulate what happens to your late wife's share of the property.
As your wife died within seven years of making a gift of a share of a property to her daughter, there are Inheritance Tax and Capital Gains Tax implications.
The value of the share of the property given away will be included in her estate as well as her own share. There will only be IHT to pay if her estate was worth more than £325,000 at the time of her death (possibly more than £325,000 if your wife was widowed before you married her). All gifts made in the seven years before her death would have to be included in that valuation.
The gift of a share of the property by your wife to her daughter in mid-2014 was a disposal for Capital Gains Tax purposes at the open market value. If the gift was a 50% share, for example, then the gain would be £70,000 (£190,000 / 2 - £50,000 / 2). The first £11,000 of the gain will be exempt so that leaves a taxable gain of £59,000 on which CGT will be charged at 18% or 28% or a combination of the two rates depending on the level of your wife's income in the period between 6 April 2014 and the date she passed away. There would be no CGT or less CGT to pay if the property was ever your late wife's main home during her ownership of it.
I hope this helps but let me know if you have any further questions.