Basis Of Incompatibility Research Articles

Ankylosing Spondylitis with Subcutaneous Nodules

IS ankylosing spondylitis a distinct entity1 2 3 4 5 6 7 8 9 10 or a variant of rheumatoid arthritis?11 12 13 14 15 16 17 McEwen et al.18 regard spondylitis restricted to sacroiliac joints and spine, with or without hip and shoulder involvement, as a distinct disorder; spondylitis with peripheral joint disease is considered a variant of rheumatoid arthritis. There seem to be sufficient differences between the two conditions clinically, radiologically, serologically and therapeutically to justify Graham's7 conclusion that ". . . The enforced marriage of rheumatoid arthritis and ankylosing spondylitis should be annulled on the basis of incompatibility."A striking difference between ankylosing spondylitis and rheumatoid arthritis cited by proponents of the . . .

Interspecific hybridization between Corchorus olitorius Linn. and C. capsularis Linn. and the cytogenetical basis of incompatibility between them

The pollen grains of Corchorus olitorius and capsularis (jute) germinate within ten minutes in cross-pollinations as well as in self-pollinations. No perceptible difference is observed in the number of capsularis pollen grains germinating on olitorius stigmas and vice versa, though an olitorius stigma (being bigger) accommodates more pollen than capsularis.