Sentences with phrase «italian sparrow»

The researchers find that Italian sparrow populations from different islands probably result from independent hybridization events between their parent species, the house sparrow and Spanish sparrow.

That reproductive isolation from its parents gives the Italian sparrow independent species status.

On average, 61.9 percent of the Italian sparrow's DNA comes from house sparrows and 38.1 percent from Spanish sparrows, the researchers reported June 14 in Science Advances.

Oslo's Sætre and colleagues are studying one such species, the Italian sparrow, a blend of Spanish sparrows and house sparrows.

DNA analysis (below) shows that Italian sparrows have purged genes from both parents.

BLURRED LINES Italian sparrows, formed from interbreeding between house and Spanish sparrows, are a hybrid success story.

When house sparrows migrated from the Middle East to Europe (geographic range, blue), they mated with Spanish sparrows (red) to form Italian sparrows (yellow).

Italian sparrows aren't simple 1 - to - 1 mixtures of their parent species» genes, Sætre and colleagues discovered.

Today, Italian sparrows are largely cut off from their parents in the reproductive arena, Sætre says.

Among the genes that Italian sparrows always inherit from the house sparrow are those that repair DNA.

Not exact matches

In southern Italy where Italian and Spanish sparrows cross paths, Sætre and colleagues have tested more than 1,000 sparrows across several studies.

In the Alps, Italian and house sparrows can sometimes breed, though genetic evidence suggests they rarely do.