Orr Ha

Localization of genes causing postzygotic isolation in two hybridizations involving Drosophila pseudoobscura.

Orr Ha, 1989 .

Morphological innovation and developmental genetics.

H. A. Orr, N. Patel, C. Marshall, 1999, Proceedings of the National Academy of Sciences of the United States of America.

The unexpected recovery of hybrids in a Drosophila species cross: a genetic analysis

Orr Ha, 1996 .

Does hybrid lethality depend on sex or genotype

Orr Ha, 1999 .

Developmental anomalies in Drosophila hybrids are apparently caused by loss of microchromosome.

Orr Ha, 1990 .