Are Pikistan white Shatoot and Pakistan White Saharanpur mulberries the same plant

I asked about some Morus Nigra I am growing on this fruit reddit and they said Pakistan Red will not grow in my zone (Zone 5b). I found a website that goes by Paradise Nursery and that state the zone for their White Pakistan Saharanpur is zone 4 which is 10 degrees hardier than my zone. The ones that state Pakistan white Shatoot say zone 9 though. I am wondering if it will grow in my zone and if they are the same plant as both are named White Pakistan.

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from what ive read the only mulberries to survive and grow in the colder zones z4/5 are pure M. albas or illinois everbearring which is M. alba/ rubus cross.