Species identification and population structure analysis in Geranium subg. Geranium (Geraniaceae)
نویسندگان
چکیده
منابع مشابه
Gender Differences in Reproductive and Physiological Traits in a Gynodioecious Species, Geranium Maculatum (geraniaceae)
Plant species with separate genders often exhibit gender differences in traits related to reproductive allocation. In gynodioecious species, females often produce more seeds than do hermaphrodites, leading to a higher reproductive cost. The mechanisms that allow females to meet the high costs of reproduction are currently under debate. In this study, we test the hypothesis that there are geneti...
متن کاملDevelopment and characterization of microsatellite primers in Geranium carolinianum (Geraniaceae) with 454 sequencing1
UNLABELLED PREMISE OF THE STUDY Microsatellite primers were developed for Geranium carolinanum, a North American winter annual herb, for use in population genetic analyses. • METHODS AND RESULTS Genomic DNA enriched for repeat-containing fragments was sequenced on the Roche 454 Titanium platform, resulting in 470 primer pairs developed from 1115 microsatellite-containing sequences. A subse...
متن کاملFemale frequency and relative fitness of females and hermaphrodites in gynodioecious Geranium sylvaticum (Geraniaceae).
We determined female frequency of 23 populations of the gynodioecious Geranium sylvaticum (Geraniaceae) in Finland. We compared our results to previous results on this species from the 1960s in order to reveal putative changes in female frequencies. Because females may be maintained in gynodioecious populations if their seed production or offspring quality is higher than that of hermaphrodites,...
متن کاملFloral dimorphism, pollination, and self-fertilization in gynodioecious GERANIUM RICHARDSONII (Geraniaceae).
The selective maintenance of gynodioecy depends on the relative fitness of the male-sterile (female) and hermaphroditic morphs. Females may compensate for their loss of male fitness by reallocating resources from male function (pollen production and pollinator attraction) to female function (seeds and fruits), thus increasing seed production. Females may also benefit from their inability to sel...
متن کاملFemale compensation through the quantity and quality of progeny in a gynodioecious plant, Geranium maculatum (Geraniaceae).
One of the major evolutionary trends in flowering plants is the evolution of unisexual flowers (male or female) from perfect flowers. This transition has occurred repeatedly in many taxa and has generated a wonderful array of variation in sexual expression among species. Theoretical studies have proposed a number of mechanisms to explain how this level of variation could be maintained in natura...
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ژورنال
عنوان ژورنال: Hacquetia
سال: 2018
ISSN: 1854-9829
DOI: 10.1515/hacq-2017-0007