A-M51 is a branch on the paternal tree of human kind. It and branches help trace human history from our origin in Africa.
This branch is defined by the Y-Haplotree at FamilyTreeDNA as A-M51. There, it is the child of the A-M144 branch.
This branch is defined by YFull as A-M51. There, it is the child of the A-M5 branch.
M51, V4839, V6194, M9522, V5923, SK86, V7229, M9549, M9550, V7393, V7742, M10409, V5416, M9447, M10301, V4295, M9698, V7896, V7737, V6087, V6356, M10149, M10157, M9524, M9784, V6851, V7589, M9532, V4920, V7639, V6544, M9529, V5507, M10139, V7287, V7268, V7347, V4266, V6376, M9434, V5785, V8038, M9582, V4380, Y64953, M10400, V7778, M9598, M9932, V7855, M9819, M9992, M9817, Y69322, M10136, Y72028, M9571, M10133, M9533, M9863, M10414, M9702, M9914, M10267, M10062, M9824, M10418, Y80868, M9901, M9592, M9553, M9662, Y69391, M10272, M9847, Y61400, M9484, M9851, SK129, M10323, M10321, Y77232, M10416, M9946, M9688, M10405, M9528, M9878, M10256, M10332, M9477, M9455, M9902, SK128, M9931, M10168, M9704, M9956, M9636, M9585, M9900, M10186, M10141, M10219, M10086, M9507, M9736, M10217, M9544, M9994, M9435, M10104, M9587, M10366, M9774, M10037, M9694, M9926, M9618, M10220, M9811, M9446, M10026, M9723, M10003, M10077, M10050, M9672, M9575, F14067, M9680, V1116, Y61653, M9911, M9743, M9558, M10095, M10022, M10401, Y80851, M9877, Y160771, M10079, V6653, V5695, M239, V6460, V6193, V6853, V5324, V7511, V4291, V6462, M9542, M10274, M10005, M229, M9725, M9731, M10421, M9913, M9876, M10364, M9503, M10025, M10017, M10099, M9983, Y74962, M10082, M9452, M10322, M9500, M10131, M10180, M10356, M9795, M10193, V4328, V5395, M9612, V7233, M9476, V5110, M9445, V5434, M9504, V7392, V6141, M9674, M9673, M10181, M10348, M9895, V5391, V4365, M10031, M10127, M9670, M9813, M9741, M9955, M9973, M9726, M9555, Y62019, M9467, V4855, V4415, M9757, M9486, M9834, M9829, M10069, M9942, V6136, M9710, V5250, M9559
Peer reviewed sources have not been added for this branch yet. If you know of one I have missed, please link to it in the comments.