In the Bible, Jewish genealogy is not reckoned in terms of matriarchy, but in terms of patriarchy per the order of familial spiritual authority. Hence, the God of Abraham, Isaac and Jacob or, more to the point, Abraham the son of Terah, Isaac the son of Abraham, Jacob the son of Isaac. . . .
Jesus is the adopted son of Joseph. His actual Father is God via the Incarnation and immaculate conception; hence, Jesus the Christ is the son of God the Father. Jesus the Christ's divine origin and sinless nature are established. Mary's virginity, in and of itself, is only partially relevant to that concern, but, of course, Jesus' incontrovertible immaculate conception is a miraculous sign of God's power and authority over nature and a fulfillment of prophecy.