筛选
科学数据
统计数据
共检索到8条 ,权限内显示50条;
Data from: A novel case of autogamy and cleistogamy in Dendrobium wangliangii: a rare orchid distributed in the dry-hot valley
- 负责人：
- DOI：
- doi:10.5061/dryad.11n8t6n
- 摘要：
- of pollination for this orchid. Spontaneous self-pollination and specific cleistogamous autogamy could represent major adaptions to the drought and pollinator
Data from: Somatic deleterious mutation rate in a woody plant: estimation from phenotypic data
- 负责人：
- DOI：
- doi:10.5061/dryad.t8q7t
- 摘要：
- ween geitonogamous versus autogamous fitness within single plants is referred to as "autogamy depression" (AD). AD can be caused by somatic deleterious mutation. AD
Data from: Association between inbreeding depression and floral traits in a generalist-pollinated plant
- 负责人：
- DOI：
- doi:10.5061/dryad.p1s20
- 摘要：
- nt consequences for mating system evolution. This association has been investigated only scarcely, and always considering traits functionally related to autogamy
Data from: Microsatellite evidence for obligate autogamy, but abundant genetic variation in the herbaceous monocarp Lobelia inflata (Campanulaceae)
- 负责人：
- DOI：
- doi:10.5061/dryad.p2c0b
- 摘要：
- Although high levels of self-fertilization (>85%) are not uncommon in nature, organisms reproducing entirely through selfing are extremely rare
Data from: Heterostyly promotes disassortative pollination and reduces sexual interference in Darwin’s primroses: evidence from experimental studies
- 负责人：
- DOI：
- doi:10.5061/dryad.mn6np
- 摘要：
- ) and restricting gamete wastage to autogamy (via the reduction of sexual interference between male and female organs). In heterostylous flowers
Data from: Ancestral remnants or peripheral segregates? Phylogenetic relationships of two narrowly endemic Euphrasia species (Orobanchaceae) from
- 负责人：
- DOI：
- doi:10.5061/dryad.2pm2j8j
- 摘要：
- tes of the widespread E. alpina s. l.. Shifts in pollination system from allogamy in E. alpina s. l. to autogamy in E. inopinata and E. sinuata, genetic drift
Data from: High-elevation range limit of an annual herb is neither caused nor reinforced by declining pollinator service
- 负责人：
- DOI：
- doi:10.5061/dryad.m72m9
- 摘要：
- We found no evidence for pollination failure towards the upper range limit of R. minor. Moreover, unlike some species with a capacity for autogamy, autonomous selfing ma
Data from: Wheat alleles introgress into selfing wild relatives: empirical estimates from Approximate Bayesian Computation in Aegilops triuncialis.
- 负责人：
- 关键词：
- autogamy Crop to wild gene flow transgene escape containment Approximate Bayesian Computation admixture
- DOI：
- doi:10.5061/dryad.7np24
- 摘要：
- Extensive gene flow between wheat (Triticum sp.) and several wild relatives of the genus Aegilops has recently been detected despite notoriously high levels of selfing in these species. Here, we assess and model the spread of wheat alleles into natural populations of the barbed goatgrass (Aegilops triuncialis), a wild wheat relative prevailing in the Mediterranean flora. Our sampling, based on an extensive survey of 31 Ae. triuncialis populations collected along a 60 km x 20 km area in Southern Spain (Grazalema Mountain chain, Andalousia, totaling 458 specimens) is completed with 33 wheat cultivars representative of the European domesticated pool. All specimens were genotyped with amplified fragment length polymorphism with the aim of estimating wheat admixture levels in Ae. triuncialis populations. This survey first confirmed extensive hybridization and backcrossing of wheat into the wild species. We then used explicit modeling of populations and Approximate Bayesian Computation to estimate the selfing rate of Ae. triuncialis along with the magnitude, the tempo and the geographic distance over which wheat alleles introgress into Ae. triuncialis populations. These simulations confirmed that extensive introgression of wheat alleles (2.7 x 10-4 wheat immigrants for each Ae. triuncialis resident, at each generation) into Ae. triuncialis occurs despite a high selfing rate (Fis ≈ 1 and selfing rate = 97%). These results are discussed in light of risks associated with the release of genetically-modified wheat cultivars in Mediterranean agrosystems.
首页上一页1下一页尾页
