Alternative Hypotheses of Hybrid Vigor.
نویسنده
چکیده
منابع مشابه
Empirical Bayes analysis of RNA-seq data for detection of gene expression heterosis.
An important type of heterosis, known as hybrid vigor, refers to the enhancements in the phenotype of hybrid progeny relative to their inbred parents. Although hybrid vigor is extensively utilized in agriculture, its molecular basis is still largely unknown. In an effort to understand phenotypic heterosis at the molecular level, researchers are measuring transcript abundance levels of thousands...
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F1 hybrids in Arabidopsis and crop species are uniform and high yielding. The F2 generation loses much of the yield advantage and the plants have heterogeneous phenotypes. We generated pure breeding hybrid mimic lines by recurrent selection and also selected a pure breeding small phenotype line. The hybrid mimics are almost completely homozygous with chromosome segments from each parent. Four p...
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Page Introduction.._ 1 The breeding program 3 Selection in back-pollinated lines 4 Greenhouse selection 5 Experiments on back pollinating and recrossing 7 Growing seed for the experiments 8 Methods ©(comparing yields 9 Experiments on back pollinating and recrossing—Continued. Experimental data --. 10 Discussion 17 Relation to the theory oí hybrid vigor... 18 Relation to corn breeding19 Summary ...
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Confronting a recently mated female with a strange male can induce a pregnancy block ('Bruce effect'). The physiology of this effect is well studied, but its functional significance is still not fully understood. The 'anticipated infanticide hypothesis' suggests that the pregnancy block serves to avoid the cost of embryogenesis and giving birth to offspring that are likely to be killed by a new...
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ورودعنوان ژورنال:
- Genetics
دوره 33 5 شماره
صفحات -
تاریخ انتشار 1948