Genetic variability of an unusual apomictic triploid cactus--Haageocereus tenuis Ritter--from the Coast of Central Peru.

Abstract excerpt

Haageocereus tenuis is a prostrate cactus restricted to a small area of 2 km(2) near the city of Lima, Peru. The species is triploid and propagates mainly through stem fragmentation. In addition, propagation via agamospermy is documented and adventitious embryony is also inferred as a mechanism. Although seedling recruitment has not been observed in nature, we have shown that asexually produced seeds are viable....

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