| genetic diversity in water frog hybrids (pelophylax esculentus) varies with population structure and geographic location. | pelophylax esculentus is a hybridogenetic frog originating from matings between p. ridibundus (rr) and p. lessonae (ll). typically, diploid hybrids (lr) live in sympatry with one of their parental species, upon which they depend for successful reproduction. in parts of their range, however, pure hybrid populations can be found. these hybrid populations have achieved reproductive independence from their parental species by using triploid hybrids (llr, lrr) rather than ll and rr as their sexual ho ... | 2010 | 20374490 |