NDLI: How selfing and intra- and interspecific crossing influence seed set, morphology and ploidy level in Euphrasia: An experimental study of species occurring in the Alps of Switzerland

Content Provider	Springer Nature Link
Author	Liebst, B. Schneller, J.
Copyright Year	2005
Abstract	Annual alpine species rely on selfing rather than on cross-pollination for successful reproduction. However, insect visits may occasionally cause cross-pollination not only within but also between closely related species. The aim of this study was to investigate four species of Euphrasia for their efficiency in spontaneous selfing and their success in intra- and interspecific crossing. We used the seed sets that followed spontaneous selfing and artificial cross- and selfpollination to measure the breeding success. We compared the morphological characters of species and hybrids and determined their ploidy level using flow cytometry. We verified the hybridogenous origin of plants resulting from interspecific crosses using RAPD banding patterns. While spontaneous seed set was high in the two small-flowered species, seed set in the large-flowered species was small and affected by external circumstances. We obtained F1 and F2 hybrids from interspecific crosses of two diploid species and detected polyploid individuals in both generations.
Starting Page	193
Ending Page	214
Page Count	22
File Format	PDF
ISSN	03782697
Journal	Plant Systematics and Evolution
Volume Number	255
Issue Number	3-4
e-ISSN	16156110
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-08-11
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Euphrasia christii E. hirtella E. minima E. rostkoviana (Orobanchaceae) Germination hybridization intra- and interspecific cross-pollination morphology polyploidization selfing Plant Sciences Plant Ecology Plant Anatomy/Development Plant Systematics/Taxonomy/Biogeography
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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