A morphologically intergrading population facilitates plastid introgression from diploid to tetraploid Dodecatheon (Primulaceae)
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چکیده
منابع مشابه
Unidirectional diploid–tetraploid introgression among British birch trees with shifting ranges shown by restriction site‐associated markers
Hybridization may lead to introgression of genes among species. Introgression may be bidirectional or unidirectional, depending on factors such as the demography of the hybridizing species, or the nature of reproductive barriers between them. Previous microsatellite studies suggested bidirectional introgression between diploid Betula nana (dwarf birch) and tetraploid B. pubescens (downy birch) ...
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Unilateral introgression from diploids to tetraploids has been hypothesized to be an important evolutionary mechanism in plants. However, few examples have been definitively identified, perhaps because data of sufficient depth and breadth were difficult to obtain before the advent of affordable high-density genotyping. Throughout Japan, tetraploid Miscanthus sacchariflorus and diploid Miscanthu...
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The reniform nematode (Rotylenchulus reniformis) is a semi-endoparasitic organism in which the female penetrates the root cortex establishing a permanent feeding site (Robinson et al., 1997). It has become a serious threat to cotton (Gossypium hirsutum L.) production in Arkansas and the mid-South (Zhao et al., 2000) because yield losses in infested fields may exceed 50% under stress conditions ...
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From error to tetraploid naphase is not the point of no return, say Qinghua Shi and Randall King (Harvard Medical School, Boston, MA). If cells make errors in anaphase chromosome segregation, they mount a rescue operation. The final stages of cytokinesis shut down, producing tetraploid cells that might even be able to regenerate functional diploid cells. Shi and King started out looking for dif...
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ژورنال
عنوان ژورنال: Botanical Journal of the Linnean Society
سال: 2011
ISSN: 0024-4074
DOI: 10.1111/j.1095-8339.2011.01191.x