Genetics Analysis of Standing Variation for Floral Morphology and Fitness Components in a
نویسندگان
چکیده
Genetics Analysis of Standing Variation for Floral Morphology and Fitness Components in a Natural Population of Mimulus guttatus (common monkeyflower) by Young Wha Lee University Program in Genetics and Genomics Duke University Date:_______________________ Approved: ___________________________ John H. Willis, Supervisor ___________________________ Mark Rausher, Chair ___________________________ John K. Kelly ___________________________ Tom Mitchell-Olds ___________________________ Mohamed A.F. Noor An abstract of a dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the University Program in Genetics and Genomics in the Graduate School of Duke University
منابع مشابه
Correction for Charlesworth, Causes of natural variation in fitness: evidence from studies of Drosophila populations.
DNA sequencing has revealed high levels of variability within most species. Statistical methods based on population genetics theory have been applied to the resulting data and suggest that most mutations affecting functionally important sequences are deleterious but subject to very weak selection. Quantitative genetic studies have provided information on the extent of genetic variation within p...
متن کاملEpistasis in monkeyflowers.
Epistasis contributes significantly to intrapopulation variation in floral morphology, development time, and male fitness components of Mimulus guttatus. This is demonstrated with a replicated line-cross experiment involving slightly over 7000 plants. The line-cross methodology is based on estimates for means. It thus has greater power than the variance partitioning approaches historically used...
متن کاملChanges of edogenous hormone levels during short-day inductive floral initiation and inflorescence differentiation of Chrysanthemum morifolium ‘Jingyun’
Duration of various stages of inflorescence differentiation and hormone levels in apical buds eventually decide the harvest time, flower uniformity and quality of ornamental plants. The progress in inflorescence differentiation process in the chrysanthemum cultivar ‘Jingyun’ can be divided into nine stages. Following short day induction, it took 4d to reach the growing point hypertrophy stage, ...
متن کاملSeasonal Variation in Floral Scent of Persian Musk Rose (Rosa moschata Hermm.)
The seasonal variation of volatile oil compositions (VOCs) from fresh flowers of Persian Musk rose was investigated by Combi PAL Headspace Techniques. In this study, a total number of 21 VOCs were detected by headspace on the Combi PAL System and gas chromatography-mass spectrometry (HS-GC/MS) from Rosa moschata Herrm. at different seasons which was representing 92.53-99.37% of total VOCs. The ...
متن کاملHeterosis for viability, fecundity, and male fertility in Drosophila melanogaster: comparison of mutational and standing variation.
If genetic variation for fitness traits in natural populations ("standing" variation) is maintained by recurrent mutation, then quantitative-genetic properties of standing variation should resemble those of newly arisen mutations. One well-known property of standing variation for fitness traits is inbreeding depression, with its converse of heterosis or hybrid vigor. We measured heterosis for t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009