Genome-wide selection and introgression of Chinese rice varieties during breeding

Ge, Jinyue; Wang, Junrui; Pang, Hongbo; Li, Fēi; Lou, Danjing; Fan, Weiya; Liu, Ziran; Li, Jiaqi; Li, Danting; Nong, Baoxuan; Zhang, Zongqiong; Wang, Yanyan; Huang, Jingfen; Xing, Meng; Nie, Yamin; Xiao, Xiaorong; Zhang, Fan; Wang, Wensheng; Xu, Jianlong; Kim, Sung Ryul; Kohli, Ajay; Ye, Guoyou; Qiao, Weihua; Yang, Qingwen; Zheng, Xiaoming

doi:10.1016/j.jgg.2022.02.025

Cited by 8 publications

(4 citation statements)

References 33 publications

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“…In the context of crop breeding, one strategy is to minimize plasticity to develop a cultivar with satisfactory performance across a wide range of environments ( Lynch and Walsh 1998 ). Alternatively, performance can be maximized in individual environments by enriching environment-specific beneficial alleles that are conditional neutral or unfavorable in other environments ( Jannink et al., 2010 ; Gage et al., 2017 ; Ge et al., 2022 ; Xiao et al., 2022 ). This is similar to how natural selection has acted on wild populations, in which local adaptation has resulted in genotypes with optimized phenotypes in their native environments that are often maladapted in new environments ( Lazzaro et al., 2008 ; Hereford 2009 ; Anderson et al., 2013 ; Blanquart et al., 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Complex genetic architecture underlying the plasticity of maize agronomic traits

Jin

Liu

Guo

et al. 2023

Plant Communications

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Section: Introductionmentioning

confidence: 99%

Complex genetic architecture underlying the plasticity of maize agronomic traits

Jin

Liu

Guo

et al. 2023

Plant Communications

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“…The variety Znahidka Odeska needs special attention, which is characterized by a significantly high level of reaction to the variability of growing conditions (b i =1.018) and showed a high level of stability (S 2 d=6.14) according to this characteristic, while the variety Khersonska bezosta with the greatest reaction to improvement (deterioration) growing conditions (b i =1.824) was significantly unstable in the formation of the number of grains in the ear (S 2 d=12. 16).…”

Section: Resultsmentioning

confidence: 99%

Realization of the adaptive yield potential of the assortment of winter wheat in the Steppe zone under different growing conditions

Bazaliy¹,

Domaratsky²,

Пічура³

et al. 2022

UBSRAS

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Climate changes in recent decades have increased the degree of risks in crop production. The consequence of such processes is an increase in the temperature regime against the background of a significant moisture deficit in critical periods of plant growth and development. Accordingly, research aimed at establishing the adaptability of plants to such climatic changes is relevant and timely. The purpose of the research is to establish the principles of implementing the adaptive potential of new varieties of winter wheat of different types of development in the Steppe zone under the conditions of climate change. Records and their assessment were carried out according to the generally accepted methods of Ukrainian variety testing with mandatory statistical and dispersion analysis of the results of field experiments. The establishment of indicators of the stability of quantitative traits and plasticity was carried out using the Eberhard-Russell algorithm, which is based on a regression analysis of the dependence of the grain yield of winter wheat of different varieties on the environmental index. The results of the research established that universal type varieties with a stem length of 85-90 cm are the most suitable for irrigated and non-irrigated conditions. Regression analysis of the data on the plasticity and stability of the elements of the crop structure in different varieties of winter wheat proved that their variability directly depends on the genotype and ecological gradients. According to the results of the assessment of the adaptive potential, it was established that the parameters of plasticity (bi = 0.804-0.989) and yield (7.33-7.63 t/ha exceed the standard by 10.4-14.9%) showed winter wheat varieties of the universal type - Askaniyska, Askaniyska Bereginya, Perlyna, Znahidka Odeska, while Khersonska 99, Kirena, Yaroslavna, Kuyalnyk, etc. were characterized by an intensive type of development. Varieties of the universal type were more plastic and stable in the formation of ear productivity, compared to short and tall biotypes. The scientific significance of the research lies in the substantiation of scientific principles, practical recommendations for improving varietal agricultural technology of winter wheat, which had different genetic and ecological origins, in irrigated and non-irrigated conditions of the Steppe zone

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“…Recent genomic studies of some elite rice cultivars, wild progenitors, and landraces have identified specific genomic regions targeted, clarifying that such selection occurred during domestication (Asano et al ., 2011; Cheng et al ., 2019) and subsequent improvement efforts (Chen et al ., 2017; Xiao et al ., 2021). The latest study evaluated the genomic introgression from Southeast Asian and South Asian accessions into Chinese Xian cultivars, and the introgression from tropical Geng cultivars into Chinese Geng cultivars (Ge et al ., 2022). However, a systematic analysis of the underlying genetic changes occurred during the improvement of major rice cultivars and the role played by landraces and introduced cultivars in this process is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Genomic insight into genetic changes and shaping of major inbred rice cultivars in China

Zhang

Yuan

et al. 2022

New Phytologist

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The annual planting area of major inbred rice (Oryza sativa) cultivars reach more than half of the total annual planting area of inbred rice cultivars in China. However, how the major inbred rice cultivars changed during decades of genetic improvement and why they can be prevalently cultivated in China remains unclear.Here, we investigated the underlying genetic changes of major inbred cultivars and the contributions of landraces and introduced cultivars during the improvement by resequencing a collection of 439 rice accessions including major inbred cultivars, landraces, and introduced cultivars.The results showed that landraces were the main genetic contribution sources of major inbred Xian (Indica) cultivars, while introduced cultivars were that of major inbred Geng (Japonica) cultivars. Selection scans and haplotype frequency analysis shed light on the reflections of some well-known genes in rice improvement, and breeders had different preferences for the Xian's and Geng's breeding. Six candidate regions associated with agronomic traits were identified by genome-wide association mapping, five of which were under positive selection in rice improvement.Our study provides a comprehensive insight into the development of major inbred rice cultivars and lays the foundation for genomics-based breeding in rice.

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Genome-wide selection and introgression of Chinese rice varieties during breeding

Cited by 8 publications

References 33 publications

Complex genetic architecture underlying the plasticity of maize agronomic traits

Complex genetic architecture underlying the plasticity of maize agronomic traits

Realization of the adaptive yield potential of the assortment of winter wheat in the Steppe zone under different growing conditions

Genomic insight into genetic changes and shaping of major inbred rice cultivars in China

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