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Low temperature at the booting stage is a major abiotic stress-limiting rice production. In this study, Cold stress tolerance index of panicle traits of a recombinant inbred line was used to identify cold tolerance at booting stage for three consecutive years. The purpose was to locate the stable QTL linked to cold tolerance at booting stage. Combined with meta-analysis model, candidate genes for...
Tiller number per plant (TN) and plant height (PH) are important agronomic traits related to grain yield (GY) in rice (Oryza sativa L.). A total of 30 additive quantitative trait loci (A-QTL) and 9 significant additive × environment interaction QTLs (AE-QTL) were detected, while the phenotypic and QTL correlations confirmed the intrinsic relationship of the three traits. These QTLs were integrated...
Both low-temperature germinability (LTG) and cold tolerance at the seedling stage (CTS) are important traits for rice. In this study, a rice population of recombinant inbred lines (RILs), derived from the backcross population of a cross between Dongnong422 and Kongyu131, was developed to detect quantitative trait loci (QTL) affecting LTG and CTS by using seed of different storage times. Correlation...
The author H.L. Chang is affiliated with “Innovation Center, Suihua Branch of Heilongjiang Academy of Agricultural Sciences, Suihua 152052, People’s Republic of China” in addition to the institution listed in the original publication.
Anthocyanins and proanthocyanidins are the primary pigments of red rice and are also important functional nutrients for human health. To identify novel quantitative trait loci (QTLs) underlying anthocyanins and proanthocyanidins (ANC and PAC) in rice, a recombinant inbred line (RIL) derived from a cross of red rice ‘Hong Xiang 1’ (‘HX1’) and white rice ‘Song 98-131’ (‘S98-131’) was cultivated in six...
Low temperatures dramatically influence spikelets at the booting stage, which is an important factor that greatly reduces grain yield. Mining the genes for grain yield under low temperatures and elucidating the genetic mechanism is a key approach to breeding improved-yield crops. In this study, we generated 190 recombinant inbred lines with 155 SSR markers from a cross between Dongnong422 (a low-temperature-sensitive...
In previous studies, we successfully transferred the P genome of Agropyron cristatum into wheat using wide hybridization methods. In the current investigation, repetitive sequences were cloned and DNA markers specific for the P genome of A. cristatum were developed. Three P genome-specific markers, designated OPX07-1036, OPX11-817 and OPC05-1539, were identified and isolated using random amplified...
A protocol for in vitro induction of tetraploids via colchicine-treated somatic embryos from immature zygotic embryos of diploid grapevine (Vitis vinifera L.) is reported. Embryogenic callus was initiated from immature zygotic embryos cultured on Nitsch and Nitsch (NN) medium supplemented with 1.0 mg/l 2,4-dichlorophenoxyacetic acid (2,4-D). The callus was transferred to NN medium containing 1.0 mg/l...
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