Temperature-dependent sugar accumulation in interspecific Capsicum F1 plants showing hybrid weakness

Shiragaki, Kumpei; Furukawa, Hidemitsu; Yokoi, Shuji; Tezuka, Takahiro

doi:10.1007/s10265-021-01340-1

Cited by 6 publications

(13 citation statements)

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“…In general, several hybrid weakness cases in some plants were reported to be low temperature-dependent and phenotypes of weak plants were rescued at high temperature ( Saito et al, 2007 ; Alcázar et al, 2009 ; Shiragaki et al, 2021 ; Yoneya et al, 2021 ). To date, only one high temperature-dependent hybrid weakness in rice was reported ( Chen et al, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

“…Hybrid weakness refers to the phenomenon in which the hybrid, derived from two normal parents, shows defective development such as necrotic leaves, small stature, or poor growth (Bomblies and Weigel, 2007). This phenomenon has been reported in many other plant species, including Arabidopsis thaliana , Phaseolus vulgaris (Shii et al, 1980), interspecific crosses among Gossypium (Lee, 1981), interspecific crosses among Nicotiana (Tezuka et al, 2007), and interspecific crosses among Capsicum (Shiragaki et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies suggested that the over-activated immune responses might be an essential mechanism for triggering hybrid weakness of rice, Arabidopsis , and other plant species ( Bomblies et al, 2007 ; Alcázar et al, 2009 , 2010 ; Jeuken et al, 2009 ; Chen et al, 2013 , 2014 ; Shiragaki et al, 2021 ). For example, in Arabidopsis , an autoimmune response was activated to cause hybrid weakness by gene interaction between two loci and at least one of them coded nucleotide-binding site leucine-rich repeat (NB-LRR) protein ( Bomblies et al, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

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A Novel Combination of Genes Causing Temperature-Sensitive Hybrid Weakness in Rice

et al. 2022

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Reproductive isolation is an obstacle for plant breeding when a distant cross is demanded. It can be divided into two main types based on different growth stages: prezygotic isolation and postzygotic isolation. The hybrid weakness, which is a type of postzygotic isolation, can become a problem in crop breeding. In order to overcome reproductive isolation, it is necessary to elucidate its mechanism. In this study, genetic analysis for low temperature-dependent hybrid weakness was conducted in a rice F2 population derived from Taichung 65 (T65, Japonica) and Lijiangxintuanheigu (LTH, Japonica). The weak and severe weak plants in F2 showed shorter culm length, late heading, reduced panicle number, decreased grain numbers per panicle, and impaired root development in the field. Our result also showed that hybrid weakness was affected by temperature. It was observed that 24°C enhanced hybrid weakness, whereas 34°C showed recovery from hybrid weakness. In terms of the morphology of embryos, no difference was observed. Therefore, hybrid weakness affects postembryonic development and is independent of embryogenesis. The genotypes of 126 F2 plants were determined through genotyping-by-sequencing and a linkage map consisting of 862 single nucleotide polymorphism markers was obtained. Two major quantitative trait loci (QTLs) were detected on chromosomes 1 [hybrid weakness j 1 (hwj1)] and 11 [hybrid weakness j 2 (hwj2)]. Further genotyping indicated that the hybrid weakness was due to an incompatible interaction between the T65 allele of hwj1 and the LTH allele of hwj2. A large F2 populations consisting of 5,722 plants were used for fine mapping of hwj1 and hwj2. The two loci, hwj1 and hwj2, were mapped in regions of 65-kb on chromosome 1 and 145-kb on chromosome 11, respectively. For hwj1, the 65-kb region contained 11 predicted genes, while in the hwj2 region, 22 predicted genes were identified, two of which are disease resistance-related genes. The identified genes along these regions serve as preliminary information on the molecular networks associated with hybrid weakness in rice.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Novel Combination of Genes Causing Temperature-Sensitive Hybrid Weakness in Rice

et al. 2022

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“…A hybrid may exhibit heterosis in some environments, but show hybrid weakness in others, which is an opposite phenomenon of heterosis. For example, the phenomenon of temperature-dependent hybrid weakness has been observed in some species such as rice [ 3 , 4 ] and capsicum [ 5 ]. Hybrid weakness was also observed by our field experiment with nine rice hybrids (H1–H9) from 3 × 3 incomplete diallel crosses ( Figure 1 a,b) conducted in four different environments across two locations and three years, including Fujian 2016 (E1), Hainan 2016 (E2), Hainan 2017 (E3), and Hainan 2019 (E4).…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analyses Indicate Significant Association of Increased Non-Additive and Allele-Specific Gene Expression with Hybrid Weakness in Rice (Oryza sativa L.)

Wang

Xia

Huang

et al. 2022

Life

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The heterosis in hybrid rice is highly affected by the environment and hybrid weakness occurs frequently depending on the genotypes of the hybrid and its parents. Hybrid weakness was also observed in our field experiments on nine rice hybrids produced by 3 × 3 incomplete diallel crosses. Among the nine hybrids, five displayed mid-parent heterosis (MPH) for grain yield per plant, while four showed mid-parent hybrid weakness (MPHW). A sequencing analysis of transcriptomes in panicles at the seed-filling stage revealed a significant association between enhanced non-additive gene expression (NAE) and allele-specific gene expression (ASE) with hybrid weakness. High proportions of ASE genes, with most being of mono-allele expression, were detected in the four MPHW hybrids, ranging from 22.65% to 45.97%; whereas only 4.80% to 5.69% of ASE genes were found in the five MPH hybrids. Moreover, an independence test indicated that the enhancements of NAE and ASE in the MPHW hybrids were significantly correlated. Based on the results of our study, we speculated that an unfavorable environment might cause hybrid weakness by enhancing ASE and NAE at the transcriptome level.

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“…Developmental defects of seedlings such as hybrid lethality, hybrid necrosis, and hybrid weakness are often observed in F 1 [5][6][7] or later generations (hybrid breakdown) [8,9] in many plant species. These phenomena are caused by epistatic interactions of two or more loci as explained by the Bateson-Dobzhansky-Muller model [10].…”

Section: Introductionmentioning

confidence: 99%

Genetic Mapping of the HLA1 Locus Causing Hybrid Lethality in Nicotiana Interspecific Hybrids

Tezuka

Kitamura

Imagawa

et al. 2021

Plants

Self Cite

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Hybrid lethality, a postzygotic mechanism of reproductive isolation, is a phenomenon that causes the death of F1 hybrid seedlings. Hybrid lethality is generally caused by the epistatic interaction of two or more loci. In the genus Nicotiana, N. debneyi has the dominant allele Hla1-1 at the HLA1 locus that causes hybrid lethality in F1 hybrid seedlings by interaction with N. tabacum allele(s). Here, we mapped the HLA1 locus using the F2 population segregating for the Hla1-1 allele derived from the interspecific cross between N. debneyi and N. fragrans. To map HLA1, several DNA markers including random amplified polymorphic DNA, amplified fragment length polymorphism, and simple sequence repeat markers, were used. Additionally, DNA markers were developed based on disease resistance gene homologs identified from the genome sequence of N. benthamiana. Linkage analysis revealed that HLA1 was located between two cleaved amplified polymorphic sequence markers Nb14-CAPS and NbRGH1-CAPS at a distance of 10.8 and 10.9 cM, respectively. The distance between these markers was equivalent to a 682 kb interval in the genome sequence of N. benthamiana.

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Temperature-dependent sugar accumulation in interspecific Capsicum F1 plants showing hybrid weakness

Cited by 6 publications

References 50 publications

A Novel Combination of Genes Causing Temperature-Sensitive Hybrid Weakness in Rice

A Novel Combination of Genes Causing Temperature-Sensitive Hybrid Weakness in Rice

Transcriptome Analyses Indicate Significant Association of Increased Non-Additive and Allele-Specific Gene Expression with Hybrid Weakness in Rice (Oryza sativa L.)

Genetic Mapping of the HLA1 Locus Causing Hybrid Lethality in Nicotiana Interspecific Hybrids

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