Hybridization studies inSilene subgen.Petrocoptis (Caryophyllaceae) |
| |
| Authors: | Maria Mayol Josep A Rosselló |
| |
| Institution: | 1. Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Universitat Autonòma de Barcelona, E-08193, Bellaterra (Barcelona), Spain
2. Jardi Botànic, ICBiBE, Universitat de València, c/Quart 80, E-46008, Valencia, Spain
|
| |
| Abstract: | Silene subgenusPetrocoptis comprises sexual diploid taxa and it is restricted to calcareous cliffs in the Iberian peninsula. Artificial crosses involvingSilene pyrenaica (Bergeret)Mayol etRosselló (≡Petrocoptis pyrenaica (Bergeret)Walp.),Silene laxipruinosa Mayol etRosselló andS. montserratii subsp.crassifolia (Rouy)Mayol etRosselló (≡P. crassifolia Rouy) were attempted to assess the extent of barriers developed within the subgenusPetrocoptis. Usually, intraspecific crosses involving allopatric populations were successful, suggesting that geographically isolated populations are not genetically isolated. Cross-compatibility was noted among the polymorphicS. pyrenaica, which developed fertile F1 hybrids. All other interspecific crosses failed due to cross- or seed-incompatibility. Crossing results agree with available evidence supporting the merging of segregates ofS. pyrenaica within a single taxon. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
