Arab-conquered lands are shown in green.
Israel is a small sliver in red.
The following article from EOZ is based on the results of a National Geographic DNA study of Middle East populations. They have to be taken with some skepticism for a variety of reasons, one of them being the unscientific collection of data. People were invited to voluntarily submit their DNA.
What is key to understand is that Muslim Arabs invaded and conquered the Middle East in the seventh century. Rape, slavery, and wives taken from forcibly converted populations added to the DNA mix. The same scenario afflicted Africa, much of the rest of Asia, and even parts of Europe, as Arabs conquered new lands.
Continue reading, see charts indicating racial origin of Arab and Jewish populations, and watch video.