Results 31 to 40 of about 1,879 (240)
Background Seed shattering, or shedding, is an important fitness trait for wild and weedy grasses. U.S. weedy rice (Oryza sativa) is a highly shattering weed, thought to have evolved from non-shattering cultivated ancestors. All U.S.
Hepler Peter K +2 more
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Weedy rice (Oryza spp.) is a worldwide weed of domesticated rice (O. sativa), considered particularly problematic due to its strong competition with the crop, which leads to reduction in yields and harvest quality.
Verónica Hoyos +3 more
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Weedy Rice Infestation in Malaysia: What Do We Know and Where Do We Go?
Weedy rice is a notorious weed in the rice agroecosystem. Its infestation has caused significant economic loss in many rice-production countries, including Malaysia.
Intan Filzah Mahmod +5 more
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Molecular evolution of the rice blast resistance gene Pi-ta in invasive weedy rice in the USA. [PDF]
The Pi-ta gene in rice has been effectively used to control rice blast disease caused by Magnaporthe oryzae worldwide. Despite a number of studies that reported the Pi-ta gene in domesticated rice and wild species, little is known about how the Pi-ta ...
Seonghee Lee +5 more
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Weedy rice (Oryza spp.) is a problematic weed of cultivated rice (O. sativa) around the world. Recent studies have established multiple independent evolutionary origins of weedy rice, raising questions about the traits and genes that are essential for ...
Zhongyun Huang +7 more
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Imaizumi et al. examine the origin and evolution of Japanese weedy rice and document the role of hybridization in weedy rice origins. Their results show that there is parallel evolution in rice feralization, and document the temperate and tropical ...
Toshiyuki Imaizumi +6 more
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Occurrence pattern and morphological polymorphism of Chinese weedy rice
Rice, the main food crop in China, has been sporadically reported to suffer from weedy rice infestation. However, the overall occurrence and distribution pattern of Chinese weedy rice remains unclear because a systematic survey has not been conducted. In
Hao-quan WANG +8 more
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Weedy rice has become a major problem in Malaysia for the last few decades. A comparative morphological study was conducted to characterize weedy rice population by collecting weedy rice morphotypes from six sites among the Perak rice granaries in ...
Q. N. Ahmed, H. Zainudin, A. S. Othman
doaj
BackgroundIntrogression plays an important role in evolution of plant species via its influences on genetic diversity and differentiation. Outcrossing determines the level of introgression but little is known about the relationships of outcrossing rates,
Han-Bing Xia +4 more
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Expression of genes in cultivated rice and weedy rice in competition
The competition for resources such as light and nitrogen between red rice and cultivated rice can trigger responses in plants that interfere with growth and productivity as well as the expression of genes related to competition-induced stress. Due to its sensitivity, accuracy, and specificity, real-time reverse transcription PCR (RT-qPCR) is an ...
Marcos Andre Nohato +5 more
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