Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100801778> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W3100801778 endingPage "26" @default.
- W3100801778 startingPage "1" @default.
- W3100801778 abstract "The few attempts to produce artificial hybrids in the genus Hieracium s. str. have usually failed due to the use of polyploid parental taxa reproducing via agamospermy. Presented here for the first time are data on artificial hybridization in Hieracium s. str. which may help in understanding the microevolutionary processes resulting in the great morphological and genetic diversity in this genus. Diploid, sexually reproducing species (H. alpinum. H. pojoritense, H. transsilvanicum and two stable morphological types of H. umbellatum - of a low altitude and a high mountain type) were used as parent plants in experimental crosses. In most cases true hybrids, with intermediate morphology,were obtained. All the hybrids tested were diploid and produced a high amount of stainable pollen (65-92%). Hybrid progeny resulting from one cross exhibited a large range of morphological variation due to the combination of alleles from unrelated parental species. The percentage of well-developed achenes per capitulum, in capitula with at least one well-developed achene, in hybrids, ranged from 1.9 to 12.5% after free or controlled pollination, with an average of 4-5% per capitulum. Similar results (1.9-12.1 %) were obtained from triple-cross hybrids. However, most of the capitula of hybrid progeny (either 171 or triple) were completely sterile after free or controlled pollination. Sterility is probably caused by genome incompatibility of unrelated parental taxa belonging to different sections. In two crosses, where strictly allogamous diploid plants of H. umbellantum (both morphotypes) were used as mother plants and F I hybrids as pollen donors, some matroclinal progeny were obtained. This is a further example of the previously reported mentor effect. Diploid hybrids may be involved as pollen donors in gene flow as they produce uniformly sized and viable pollen. They are probably substantially less important as seed parents." @default.
- W3100801778 created "2020-11-23" @default.
- W3100801778 creator A5067272609 @default.
- W3100801778 creator A5074699026 @default.
- W3100801778 date "2006-01-01" @default.
- W3100801778 modified "2023-10-10" @default.
- W3100801778 title "Experimental hybridization in the genus Hieracium s. str.: crosses between diploid taxa" @default.
- W3100801778 cites W1547923799 @default.
- W3100801778 cites W2019238420 @default.
- W3100801778 cites W2074156874 @default.
- W3100801778 cites W2097737849 @default.
- W3100801778 cites W2100935052 @default.
- W3100801778 cites W2103255551 @default.
- W3100801778 cites W2107838044 @default.
- W3100801778 cites W2116999236 @default.
- W3100801778 cites W2126812408 @default.
- W3100801778 cites W2127490915 @default.
- W3100801778 cites W2128523480 @default.
- W3100801778 cites W2129177885 @default.
- W3100801778 cites W2136009275 @default.
- W3100801778 cites W2186416517 @default.
- W3100801778 cites W292845321 @default.
- W3100801778 cites W393256175 @default.
- W3100801778 cites W635863951 @default.
- W3100801778 cites W831739721 @default.
- W3100801778 cites W2183740802 @default.
- W3100801778 hasPublicationYear "2006" @default.
- W3100801778 type Work @default.
- W3100801778 sameAs 3100801778 @default.
- W3100801778 citedByCount "4" @default.
- W3100801778 countsByYear W31008017782015 @default.
- W3100801778 crossrefType "journal-article" @default.
- W3100801778 hasAuthorship W3100801778A5067272609 @default.
- W3100801778 hasAuthorship W3100801778A5074699026 @default.
- W3100801778 hasConcept C104317684 @default.
- W3100801778 hasConcept C143191323 @default.
- W3100801778 hasConcept C157369684 @default.
- W3100801778 hasConcept C168197293 @default.
- W3100801778 hasConcept C189291117 @default.
- W3100801778 hasConcept C2776626444 @default.
- W3100801778 hasConcept C2780618852 @default.
- W3100801778 hasConcept C48189365 @default.
- W3100801778 hasConcept C54355233 @default.
- W3100801778 hasConcept C59822182 @default.
- W3100801778 hasConcept C71640776 @default.
- W3100801778 hasConcept C86803240 @default.
- W3100801778 hasConceptScore W3100801778C104317684 @default.
- W3100801778 hasConceptScore W3100801778C143191323 @default.
- W3100801778 hasConceptScore W3100801778C157369684 @default.
- W3100801778 hasConceptScore W3100801778C168197293 @default.
- W3100801778 hasConceptScore W3100801778C189291117 @default.
- W3100801778 hasConceptScore W3100801778C2776626444 @default.
- W3100801778 hasConceptScore W3100801778C2780618852 @default.
- W3100801778 hasConceptScore W3100801778C48189365 @default.
- W3100801778 hasConceptScore W3100801778C54355233 @default.
- W3100801778 hasConceptScore W3100801778C59822182 @default.
- W3100801778 hasConceptScore W3100801778C71640776 @default.
- W3100801778 hasConceptScore W3100801778C86803240 @default.
- W3100801778 hasIssue "1" @default.
- W3100801778 hasLocation W31008017781 @default.
- W3100801778 hasOpenAccess W3100801778 @default.
- W3100801778 hasPrimaryLocation W31008017781 @default.
- W3100801778 hasRelatedWork W1964210686 @default.
- W3100801778 hasRelatedWork W1969407141 @default.
- W3100801778 hasRelatedWork W1973572777 @default.
- W3100801778 hasRelatedWork W1978556542 @default.
- W3100801778 hasRelatedWork W2005264024 @default.
- W3100801778 hasRelatedWork W2025166869 @default.
- W3100801778 hasRelatedWork W2025316913 @default.
- W3100801778 hasRelatedWork W2041464709 @default.
- W3100801778 hasRelatedWork W2047366870 @default.
- W3100801778 hasRelatedWork W2071473116 @default.
- W3100801778 hasRelatedWork W2075225609 @default.
- W3100801778 hasRelatedWork W2106667789 @default.
- W3100801778 hasRelatedWork W2127490915 @default.
- W3100801778 hasRelatedWork W2128196528 @default.
- W3100801778 hasRelatedWork W2128523480 @default.
- W3100801778 hasRelatedWork W2134452819 @default.
- W3100801778 hasRelatedWork W2141875517 @default.
- W3100801778 hasRelatedWork W2170510748 @default.
- W3100801778 hasRelatedWork W2171108383 @default.
- W3100801778 hasRelatedWork W2183210402 @default.
- W3100801778 hasVolume "78" @default.
- W3100801778 isParatext "false" @default.
- W3100801778 isRetracted "false" @default.
- W3100801778 magId "3100801778" @default.
- W3100801778 workType "article" @default.