Two Nicotiana occidentalis accessions enable gene identification for Type II hybrid lethality by the cross to N. sylvestris

Kawaguchi, Kenji; Ohya, Yuichiro; Maekawa, Maho; Iizuka, Takahiro; Hasegawa, Akira; Shiragaki, Kumpei; He, Hai; Oda, Masayuki; Morikawa, Tomomi; Yokoi, Shuji; Tezuka, Takahiro

doi:10.1038/s41598-021-96482-6

Cited by 9 publications

(7 citation statements)

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“…Conspecific pollen precedence and gametic incompatibility are examples of post-mating prezygotic isolating barriers ( Rieseberg and Willis, 2007 ). In turn, postzygotic isolation barriers include enlarged ovary (immature fruit) abscission ( Gupta et al, 1996 ; He et al, 2019 ), seed abortion or hybrid seed lethality ( Coughlan et al, 2020 ; Dziasek et al, 2021 ), hybrid weakness ( Shiragaki et al, 2019 , 2020 ), hybrid lethality ( Kawaguchi et al, 2021 ; Si et al, 2021 ; Tezuka et al, 2021 ; Mino et al, 2022 ), and hybrid sterility ( Li et al, 2020 ) in seedlings of the F 1 generation, as well as hybrid breakdown recognized in generations after the F 1 ( Matsubara et al, 2007 ; Zhang et al, 2021 ). These isolating barriers may be observed independently or combined, even in a single cross-combination.…”

Section: Introductionmentioning

confidence: 99%

Parental Genome Imbalance Causes Hybrid Seed Lethality as Well as Ovary Abscission in Interspecific and Interploidy Crosses in Nicotiana

Sadahisa

Yokoi

et al. 2022

Front. Plant Sci.

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Enhanced ovary abscission after pollination and hybrid seed lethality result in post-zygotic reproductive isolation in plant interspecific crosses. However, the connection between these barriers remains unclear. Here, we report that an imbalance in parental genomes or endosperm balance number (EBN) causes hybrid seed lethality and ovary abscission in both interspecific and intraspecific-interploidy crosses in the genus Nicotiana. Auxin treatment suppressed ovary abscission, but not hybrid seed lethality, in an interspecific cross between Nicotiana suaveolens and N. tabacum, suggesting that ovary abscission-related genes are located downstream of those involved in hybrid seed lethality. We performed interploidy crosses among N. suaveolens tetraploids, octoploids, and neopolyploids and revealed hybrid seed lethality and ovary abscission in interploid crosses. Furthermore, a higher maternal EBN than paternal EBN caused these barriers, as previously observed in N. suaveolens × N. tabacum crosses. Altogether, these results suggest that maternal excess of EBN causes hybrid seed lethality, which in turn leads to ovary abscission through the same mechanism in both interspecific and interploidy crosses.

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Section: Introductionmentioning

confidence: 99%

Parental Genome Imbalance Causes Hybrid Seed Lethality as Well as Ovary Abscission in Interspecific and Interploidy Crosses in Nicotiana

Sadahisa

Yokoi

et al. 2022

Front. Plant Sci.

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“…Conspecific pollen precedence and gametic incompatibility are examples of post-mating prezygotic isolating barriers . In turn, postzygotic isolation barriers include enlarged ovary (immature fruit) abscission (Gupta et al, 1996;He et al, 2019), seed abortion or hybrid seed lethality (Coughlan et al, 2020;Dziasek et al, 2021), hybrid weakness (Shiragaki et al, 2019(Shiragaki et al, , 2020, hybrid lethality (Kawaguchi et al, 2021;Si et al, 2021;Tezuka et al, 2021 , and hybrid sterility in seedlings of the F 1 generation, as well as hybrid breakdown recognized in generations after the F 1 (Matsubara et al, 2007;. These isolating barriers may be observed independently or combined, even in a single cross-combination.…”

Section: Introductionmentioning

confidence: 99%

Interspecific Hybridization in Plant Biology

2022

Frontiers Research Topics

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Frontiers is more than just an open-access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers Journal SeriesThe Frontiers Journal Series is a multi-tier and interdisciplinary set of open-access, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers Journal Series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to QualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation.

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“…Hybrid lethality in Nicotiana is thought to be caused by epistatic interactions between alleles at different loci [18,35]. Previous studies have demonstrated that the Q chromosome of the S genome in N. tabacum has gene(s) that cause hybrid lethality [17,20,36,37].…”

Section: Introductionmentioning

confidence: 99%

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

Tezuka

Kitamura

Imagawa

et al. 2021

Plants

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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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Two Nicotiana occidentalis accessions enable gene identification for Type II hybrid lethality by the cross to N. sylvestris

Cited by 9 publications

References 38 publications

Parental Genome Imbalance Causes Hybrid Seed Lethality as Well as Ovary Abscission in Interspecific and Interploidy Crosses in Nicotiana

Parental Genome Imbalance Causes Hybrid Seed Lethality as Well as Ovary Abscission in Interspecific and Interploidy Crosses in Nicotiana

Interspecific Hybridization in Plant Biology

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

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