Fine mapping of a locus presumably involved in hybrid inviability (&lt;i&gt;HIs-1&lt;/i&gt;) between flowering cherry cultivar &lt;i&gt;Cerasus&lt;/i&gt; × &lt;i&gt;yedoensis&lt;/i&gt; ‘Somei-yoshino’ and its wild relative &lt;i&gt;C. spachiana&lt;/i&gt;

Tsuruta, Momi; Mukai, Yuzuru

doi:10.1270/jsbbs.19078

Cited by 3 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because this interpretation assumes demographic equilibrium, experimental evidence is necessary. One of the postzygotic reproductive barriers causing selection against hybrids is seedling non‐viability controlled by a single locus found in Cerasus species (Tsuruta & Mukai, 2015, 2019). Another mechanism controlled by multiple loci, such as the Bateson–Dobzhansky–Muller model of hybrid breakdown, seems responsible for the lower fitness of hybrids in Cerasus species (Burke & Arnold, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…In Japan, C. leveilleana and C. sargentii are naturally distributed in mountain regions (Kato et al, 2014), with C. sargentii growing in higher elevations and flowering earlier than C. leveilleana (Ohba, 2001). Cerasus species are usually interfertile (Tsuruta & Mukai, 2015, 2019), and C. leveilleana and C. sargentii are likely to hybridize naturally. Thus, these species are suitable for investigation of hybrid zones along elevational gradients.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phenological shift along an elevational gradient and dispersal of pollen and seeds maintain a hybrid zone between two cherry tree species

Tochigi

Kato

Kikuchi

et al. 2021

Plant Species Biology

View full text Add to dashboard Cite

Hybrid zones between species with staggered reproductive phenology sometimes occur along elevational gradients. The maintenance of such hybrid zones may depend on elevational shift in phenology and vertical dispersal of pollen and seeds. In a hybrid zone of Cerasus leveilleana (Cl) and C. sargentii (Cs), 111 adults, 372 embryos of 65 mothers, and 133 juveniles were sampled across elevations of 900–1,400 m in central Japan. Using the hybrid index estimated from nuclear microsatellites, the samples were assigned to Cl, Cs or their hybrid taxon. Cs was in higher elevations than Cl with an overlapping range, and their hybrids were in intermediary elevations. Flowering periods were earlier in Cs than in Cl with little overlap at the same elevation and were intermediate in their hybrids. Flowering periods were delayed in higher elevations and overlapped between Cl and Cs in different elevations. Fruiting periods were slightly earlier in Cs than in Cl but were largely overlapped. Effective pollinators and seed dispersers were common among the taxa. Changes in the hybrid index from mothers to their embryos were larger in hybrid mothers than in Cl or Cs mothers, indicating mating of hybrids with diverse taxa. In Cs, juveniles were more abundant in lower elevations than embryos, indicating downhill seed dispersal. Proportions of hybrids were 19% in embryos, 17% in juveniles and 12% in adults. The findings suggest that the hybrid zone is maintained by interspecific pollination between different elevations, backcrossing with hybrids at similar elevations, vertical seed dispersal and mild selection against hybrids.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phenological shift along an elevational gradient and dispersal of pollen and seeds maintain a hybrid zone between two cherry tree species

Tochigi

Kato

Kikuchi

et al. 2021

Plant Species Biology

View full text Add to dashboard Cite

show abstract

Upregulation of defense-related gene expressions associated with lethal growth failure in the hybrid seedlings of Japanese flowering cherry

Tsuruta

Lian

Mukai

2022

Tree Genetics & Genomes

View full text Add to dashboard Cite

Genetics of autoimmunity in plants: an evolutionary genetics perspective

et al. 2020

View full text Add to dashboard Cite

Autoimmunity in plants has been found in numerous hybrids as a form of hybrid necrosis and mutant panels. Uncontrolled cell death is a main cellular outcome of autoimmunity, which negatively impacts growth. Its occurrence highlights the vulnerable nature of the plant immune system. Genetic investigation of autoimmunity in hybrid plants revealed that extreme variation in the immune receptor repertoire is a major contributor, reflecting an evolutionary conundrum that plants face in nature. In this review, we discuss natural variation in the plant immune system and its contribution to fitness. The value of autoimmunity genetics lies in its ability to identify combinations of a natural immune receptor and its partner that are predisposed to triggering autoimmunity. The network of immune components for autoimmunity becomes instrumental in revealing mechanistic details of how immune receptors recognize cellular invasion and activate signaling. The list of autoimmunity-risk variants also allows us to infer evolutionary processes contributing to their maintenance in the natural population. Our approach to autoimmunity, which integrates mechanistic understanding and evolutionary genetics, has the potential to serve as a prognosis tool to optimize immunity in crops.

show abstract

Fine mapping of a locus presumably involved in hybrid inviability (<i>HIs-1</i>) between flowering cherry cultivar <i>Cerasus</i> × <i>yedoensis</i> ‘Somei-yoshino’ and its wild relative <i>C. spachiana</i>

Cited by 3 publications

References 41 publications

Phenological shift along an elevational gradient and dispersal of pollen and seeds maintain a hybrid zone between two cherry tree species

Phenological shift along an elevational gradient and dispersal of pollen and seeds maintain a hybrid zone between two cherry tree species

Upregulation of defense-related gene expressions associated with lethal growth failure in the hybrid seedlings of Japanese flowering cherry

Genetics of autoimmunity in plants: an evolutionary genetics perspective

Contact Info

Product

Resources

About