منابع مشابه
Evolutionary Plant Breeding in Cereals—Into a New Era
In evolutionary plant breeding, crop populations with a high level of genetic diversity are subjected to the forces of natural selection. In a cycle of sowing and re-sowing seed from the plant population year after year, those plants favored under prevailing growing conditions are expected to contribute more seed to the next generation than plants with lower fitness. Thus, evolving crop populat...
متن کاملEvolutionary Footprints Reveal Insights into Plant MicroRNA Biogenesis.
MicroRNAs (miRNAs) are endogenous small RNAs that recognize target sequences by base complementarity and play a role in the regulation of target gene expression. They are processed from longer precursor molecules that harbor a fold-back structure. Plant miRNA precursors are quite variable in size and shape, and are recognized by the processing machinery in different ways. However, ancient miRNA...
متن کاملGenetic, evolutionary and plant breeding insights from the domestication of maize
The natural history of maize began nine thousand years ago when Mexican farmers started to collect the seeds of the wild grass, teosinte. Invaluable as a food source, maize permeated Mexican culture and religion. Its domestication eventually led to its adoption as a model organism, aided in large part by its large chromosomes, ease of pollination and growing agricultural importance. Genome comp...
متن کاملInsights into a key developmental switch and its importance for efficient plant breeding.
Sexual reproduction of plants starts with the formation of gametes and a 2-fold reduction in the number of chromosomes (ploidy) of these cells. Fertilization, the union of sperm and egg cell restores the ploidy level to its normal value again. During the formation of pollen grains, the structures that contain the male gametes, the reduction in the number of chromosomes happens when the vegetati...
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The genus Pestivirus comprises four established species: Bovine viral diarrhoea viruses 1 (BVDV-1) and 2 (BVDV-2), Border disease virus (BDV), and Classical swine fever virus (CSFV); and a tentative species, Pestivirus of giraffe. Additional pestiviruses have been identified and suggested for recognition as novel subgroups/species. To achieve a reliable phylogeny as the basis for classification...
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ژورنال
عنوان ژورنال: Current Opinion in Plant Biology
سال: 2020
ISSN: 1369-5266
DOI: 10.1016/j.pbi.2020.03.003