@misc{10498/30324,
year = {2006},
url = {http://hdl.handle.net/10498/30324},
abstract = {We studied the relationships between self-incompatibility mechanisms and floral parameters in the genusHypochaerisL. sect.Hypochaeris(consisting ofH. glabra,H. radicata,H. arachnoidea, andH. salzmanniana). We assessed at intra- and interspecificlevels (1) the self-incompatibility  (SI)  mechanism and its distribution among populations, (2) the relationship between SI andfloral  parameters,  and  (3)  the  relationship  of  SI  to  reproductive  success.Hypochaeris  salzmannianais  semi-incompatible,H.glabrais  self-compatible,  andH.  arachnoideaandH.  radicataare  self-incompatible.  Floral  parameters  differed  amongpopulations ofH. salzmanniana: plants in self-compatible populations had fewer flowers per head, a smaller head diameter on theflower, and a shorter period of anthesis than self-incompatible populations. We also detected this pattern within a semi-compatiblepopulation ofH. salzmanniana, and these differences were also found between species with different breeding mechanisms. Fruitto flower ratio in natural populations was generally high (.60%) in all species, regardless of breeding system. It is hypothesizedthat self-compatibility may have arisen through loss of allelic diversity at theSlocus due to bottleneck events and genetic drift},
title = {Self‐incompatibility and floral parameters in Hypochaeris sect. Hypochaeris (Asteraceae)},
doi = {10.1007/11789239_24},
author = {Ortiz, María Ángeles and Talavera, Salvador and Garcia Castaño, Juan Luis and Tremetsberger, Karin and Stuessy, T.F. and Balao, Francisco and Casimiro-Soriguer Camacho, Ramón},
}