Development and identification of a introgression line with strong drought resistance at seedling stage derived from Oryza sativa L. mating with Oryza
              rufipogon Griff

Zhang, Fantao; Cui, Fenglei; Zhang, Liangxing; Wen, Xiufang; Luo, Xiangdong; Zhou, Yi; Li, Xia; Wan, Yat-wah; Zhang, June; Xie, Jiankun

doi:10.1007/s10681-014-1121-5

Cited by 28 publications

(20 citation statements)

References 42 publications

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“…indica ) were immersed in distilled water in the dark, and the uniformly germinated seeds were sown in 96-well plates supported by a plastic container. Seeds were grown in a growth chamber, as previously described [ 12 ]. The growth culture solution was renewed every 3 days.…”

Section: Methodsmentioning

confidence: 99%

Transcriptome Analysis of Salt Stress Responsiveness in the Seedlings of Dongxiang Wild Rice (Oryza rufipogon Griff.)

et al. 2016

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Dongxiang wild rice (Oryza rufipogon Griff.) is the progenitor of cultivated rice (Oryza sativa L.), and is well known for its superior level of tolerance against cold, drought and diseases. To date, however, little is known about the salt-tolerant character of Dongxiang wild rice. To elucidate the molecular genetic mechanisms of salt-stress tolerance in Dongxiang wild rice, the Illumina HiSeq 2000 platform was used to analyze the transcriptome profiles of the leaves and roots at the seedling stage under salt stress compared with those under normal conditions. The analysis results for the sequencing data showed that 6,867 transcripts were differentially expressed in the leaves (2,216 up-regulated and 4,651 down-regulated) and 4,988 transcripts in the roots (3,105 up-regulated and 1,883 down-regulated). Among these differentially expressed genes, the detection of many transcription factor genes demonstrated that multiple regulatory pathways were involved in salt stress tolerance. In addition, the differentially expressed genes were compared with the previous RNA-Seq analysis of salt-stress responses in cultivated rice Nipponbare, indicating the possible specific molecular mechanisms of salt-stress responses for Dongxiang wild rice. A large number of the salt-inducible genes identified in this study were co-localized onto fine-mapped salt-tolerance-related quantitative trait loci, providing candidates for gene cloning and elucidation of molecular mechanisms responsible for salt-stress tolerance in rice.

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Section: Methodsmentioning

confidence: 99%

Transcriptome Analysis of Salt Stress Responsiveness in the Seedlings of Dongxiang Wild Rice (Oryza rufipogon Griff.)

et al. 2016

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“…Common wild rice is the relative ancestor of indicajaponica subspecies, which is an important genetic resource for improving and extending the genetic basis of cultivated rice (Li et al, 2002;Tian et al, 2006;Zhang et al, 2014;Zhou et al, 2016). The common wild rice cytoplasm is widely used in three sterile lines.…”

Section: Discussionmentioning

confidence: 99%

Cytoplasmic Effects on the Agronomic and Physiological Traits of Dual‐Purpose Genic Male Sterile Substitution Lines of Rice

et al. 2017

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The two‐line hybrid rice (Oryza sativa L.) system is an effective way for breeding and developing super rice. However, few studies have been conducted on the cytoplasmic effects. In this study, the sterile ZhunS substitution lines were acquired by using ZhunS as the nucleus donor, and rice cultivars from indica, temperate japonica, and tropical japonica subgroups and wild species were used as cytoplasmic donors. The agronomic and physiological traits were analyzed. The results indicated that the cytoplasms and ZhunS nuclei had interaction. The shoot dry weight, grain number per panicle, grain weight per plant, and net photosynthesis rate of substitution line with the cytoplasm from Chaling common wild rice (‘Chaling CWR’) were higher than those of ZhunS, whereas the most of these traits in the substitution line with the cytoplasm from tropical japonica rice ‘Lemont’ were lower. When the substitution lines were crossed with parents, the grain yield of a hybrid of Chaling CWR//ZhunS and 9311 was increased by 5.1% as compared with that of the hybrid between ZhunS and 9311. Therefore, Chaling CWR//ZhunS was an efficient sterile line parent. The entire growth periods of the hybrid combinations of Lemont//ZhunS were shortened by >4 d, thus Lemont//ZhunS could be used as an early‐season line. The results provided new information for the development of novel cytoplasmic sources and promotion of heterosis in two‐line hybrid rice.

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“…Many alien genes have been introduced into common cultivars using molecular markers, such as those mediating drought and blast resistance in Oryza sativa (rice; Zhang et al. , Arbelaez et al. ), the high grain protein gene Gpc‐B1 (Vishwakarma et al.…”

Section: Discussionmentioning

confidence: 99%

“…The emergence of DNA marker technology has greatly accelerated the development of prebreeding populations and facilitated the targeted introduction of useful variation into elite breeding backgrounds. Many alien genes have been introduced into common cultivars using molecular markers, such as those mediating drought and blast resistance in Oryza sativa (rice; Zhang et al 2014, Arbelaez et al 2015, the high grain protein gene Gpc-B1 (Vishwakarma et al 2014) and the stripe rust resistance gene Yr15 (Yaniv et al 2015) in Triticum aestivum (wheat), and the b-carotene-rich gene in Zea mays (maize; Muthusamy et al 2014). A recent study showed that pak choi is completely susceptible to clubroot and no resistant germplasms are known to exist (Zhang et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Introgression of clubroot resistance into an elite pak choi inbred line through marker‐assisted introgression breeding

Chen

Zhang

et al. 2016

Plant Breeding

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Clubroot is a soilborne disease that severely infects cruciferous species. Pak choi (Brassica rapa subsp. chinensis) is an economically important cruciferous crop cultivated throughout the world. However, no clubroot‐resistant germplasms have been identified in pak choi to date. To improve disease resistance, we used marker‐assisted selection (MAS) to introgress the clubroot resistance (CR) trait from the ‘CCR13685’ Chinese cabbage (B. rapa subsp. pekinensis) inbred line into an elite pak choi inbred line, ‘GHQ11021’. Genetic analysis of F2 and BC1 progeny showed that CR of ‘CCR13685’ was controlled by a single dominant gene. We designed nine candidate sequence‐characterized amplified region markers, K‐1 to K‐9, based on two molecular markers linked to the CR gene. We found that K‐3 co‐segregated with CR and an inoculation test confirmed that K‐3 could be used for MAS. Two introgression lines, BC3‐1‐4 and BC3‐2‐18, were developed using K‐3 for foreground selection. These lines displayed the same phenotypic properties as ‘GHQ11021’, but were highly resistant to clubroot, indicating that the CR gene of ‘CCR13685’ had been successfully introduced into pak choi.

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Development and identification of a introgression line with strong drought resistance at seedling stage derived from Oryza sativa L. mating with Oryza rufipogon Griff

Cited by 28 publications

References 42 publications

Transcriptome Analysis of Salt Stress Responsiveness in the Seedlings of Dongxiang Wild Rice (Oryza rufipogon Griff.)

Transcriptome Analysis of Salt Stress Responsiveness in the Seedlings of Dongxiang Wild Rice (Oryza rufipogon Griff.)

Cytoplasmic Effects on the Agronomic and Physiological Traits of Dual‐Purpose Genic Male Sterile Substitution Lines of Rice

Introgression of clubroot resistance into an elite pak choi inbred line through marker‐assisted introgression breeding

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