Natural hybridization between Gladiolus palustris and G. imbricatus inferred from morphological, molecular and reproductive evidence
PBN-AR
Instytucja
Instytut Botaniki im. Władysława Szafera Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
PRESLIA
ISSN
0032-7786
EISSN
Wydawca
CZECH BOTANICAL SOC
DOI
URL
Rok publikacji
2016
Numer zeszytu
Strony od-do
137-161
Numer tomu
88
Identyfikator DOI
Liczba arkuszy
Autorzy
Pozostali autorzy
+ 4
Open access
Tryb otwartego dostępu
Inne
Wersja tekstu w otwartym dostępie
Wersja opublikowana
Licencja otwartego dostępu
Creative Commons — Uznanie autorstwa
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Razem z publikacją
Data udostępnienia w sposób otwarty
Streszczenia
Język
angielski
Treść
While studying the extremely rare species, Gladiolus palustris, in Poland, putative hybrid plants were discovered. Natural hybridization between G. palustris and G. imbricatus was confirmed by chloroplast (psbA-trnH and rpl32-trnL) DNA and nuclear ribosomal DNA (ITS1) sequences, AFLP markers and macro-, micromorphological and reproductive characters. Based on molecular data, the hybridization events are likely to have occurred relatively recently with G. palustris as the maternal species and G. imbricatus as the pollen donor in interspecific crosses. The existence of a shared common cpDNA haplotype in all hybrids and G. palustris indicates unidirectional hybridization. A new nothospecies, G. ×sulistrovicus, is described. Analyses of AFLP data and polymorphisms of ITS1 sequences showed additive inheritance of parental genomic fragments in G. ×sulistrovicus. The hybrids exhibited either morphological similarity to G. imbricatus or intermediateness in phenotypic characters. The corm structure of flowering plants and seed capsules clearly distinguish the hybrid. The new taxon is characterized by a lower generative reproduction than the parental species, however hybrids produce ~50% viable pollen and seeds, which allows them to produce subsequent hybrid generations. The weak generative reproduction was enhanced by highly efficient vegetative propagation. The western part of the Balkan Peninsula and adjacent areas (Croatia, Bosnia and Hercegovina, Serbia, northern Italy) and central Europe (Poland, the Czech Republic, Slovakia, eastern Austria, Hungary) are the most likely areas where G. ×sulistrovicus will occur. Hybridity in the context of G. palustris conservation is discussed.
Inne
System-identifier
ICIL2799728