patrilines

Numerous English patrilines were incorporated into the Catholic population; in time, they would consider themselves as much a part of the Irish ethnic group as those who bore Irish surnames.

Gutenber-e Help Page 2005

And it was a process in which Irish or Irish Newfoundland women played a vital part, as marriage or common-law partners of not only incoming Irish Catholic migrants but also plebeian men of English Protestant descent, thus bringing many English Protestant patrilines (families with surnames such as Glynn, Williams, Yard, Carew, Maddox, and Martin) into the Catholic population.

Gutenber-e Help Page 2005

Within the Catholic parish records, by contrast, English surnames are frequently interspersed among the Irish, indicating a high degree of assimilation of English Protestant patrilines into the expanding Irish Catholic ethnoreligious group by the early 1800s.

Gutenber-e Help Page 2005

Irish women played another vital role in the establishment of the Irish population in the area as numerous English Protestant patrilines were brought into the Irish Catholic ethnoreligious group through intermarriage with Irish Newfoundland women.

Gutenber-e Help Page 2005

Without additional analyses of Y-chromosomal patrilines, male introgression cannot be ruled out.

PLoS ONE Alerts: New Articles Ruth Bollongino et al. 2008

Ancient DNA studies on Y-chromosomes are comparatively rare because: (i) the preservation of nuclear DNA (ncDNA) is far worse than for mtDNA, (ii) patrilines are less intensively studied and segregating sites are not well known, (iii) only males carry a Y-chromosome, thus approximately only 50\% of the samples are suitable for analysis but the morphological identification of bones from male individuals is often impossible.

PLoS ONE Alerts: New Articles Ruth Bollongino et al. 2008