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. 1997 Apr 29;94(9):4543–4547. doi: 10.1073/pnas.94.9.4543

Figure 1.

Figure 1

Comparative dorsal abdominal musculature among adult drosophilid males and females. (a) D. melanogaster male. (b) D. mauritiana male. (c) D. simulans male. (d) D. sechellia male. (e) D. yakuba male. (f) D. erecta male. (g) Hybrid male from the cross D. mauritiana males × D. teissieri females (hybrid males from the cross D. mauritiana males × D. yakuba females also contained a MOL, not shown). (h) D. subobscura female. (i) D. subobscura male. (j) D. pseudoobscura male. (k) D. azteca male. (l) Chymomyza amoena female. (m) Chymomyza amoena male. (n) Scaptodrosophila lebanonensis male. When present, note especially the species-specific variation of the MOL in terms of fiber size and number. Consistent among all species with the MOL are its obvious length, size, position relative to the smaller, adjacent longitudinal fibers, and insertion in A6 (5), apart from the D. subobscura male, which shows a duplication of the MOL in A4 (i).