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The genome of the pear (Pyrus bretschneideri Rehd.).
The draft genome of the pear using a combination of BAC-by-BAC and next-generation sequencing is reported, and size differences between the apple and pear genomes are confirmed mainly due to the presence of repetitive sequences predominantly contributed by transposable elements (TEs), while genic regions are similar in both species. Expand
Spermidine oxidase-derived H₂O₂ regulates pollen plasma membrane hyperpolarization-activated Ca(2+) -permeable channels and pollen tube growth.
Findings strongly suggest that the Spd-derived H₂O₁ signals Ca(2+) influx, thereby regulating pollen tube growth. Expand
Pyrus pyrifolia stylar S-RNase induces alterations in the actin cytoskeleton in self-pollen and tubes in vitro
Results suggest that P. pyrifolia stylar S-RNase induces alterations in the actin cytoskeleton in self-pollen grains and tubes, which occur prior to the arrest of pollen tube growth. Expand
Gene duplication and evolution in recurring polyploidization–diploidization cycles in plants
A comprehensive landscape of different modes of gene duplication across the plant kingdom is identified by comparing 141 genomes, which provides a solid foundation for further investigation of the dynamic evolution of duplicate genes. Expand
S-RNase triggers mitochondrial alteration and DNA degradation in the incompatible pollen tube of Pyrus pyrifolia in vitro.
Diagnostic features of programmed cell death (PCD) suggested that PCD may specifically occur in incompatible pollen tubes of the pear. Expand
High-density genetic linkage map construction and identification of fruit-related QTLs in pear using SNP and SSR markers
Summary A highly saturated pear genetic map was constructed using over 3000 SNP markers developed by RADseq integrated with anchored SSR markers. The reliable QTLs of several fruit traits were alsoExpand
Anatomy, ultrastructure and lignin distribution of stone cells in two Pyrus species
The presence of lignin in stone cells was revealed, and sections stained with phloroglucinol–HCl revealed that stone cells were distributed in a mosaic pattern in the flesh, with larger stone cells concentrated around the core and smaller ones in the pericarp. Expand
Identifying genetic diversity and a preliminary core collection of Pyrus pyrifolia cultivars by a genome-wide set of SSR markers
Clustering relationships of 99 P. pyrifolia cultivars generally reflected geographical classification, and further confirmed the close relationship between pears from Yangtze River Basin and Japan, and indicated that Sichuan province played an important role in pear resource distribution. Expand
S-RNase disrupts tip-localized reactive oxygen species and induces nuclear DNA degradation in incompatible pollen tubes of Pyrus pyrifolia
Results indicate that tip-localized ROS disruption occurs in Pyrus pyrifolia SI and demonstrated nuclear DNA degradation in the incompatible pollen tube after pollination in vivo, validates the in vitro system in vivo. Expand
An AFLP, SRAP, and SSR Genetic Linkage Map and Identification of QTLs for Fruit Traits in Pear (Pyrus L.)
A population of 97 F1 seedlings from a cross between the interspecific hybrid pear ‘Bayuehong’ (BYH) and the Chinese pear “Dangshansuli” (DS) was used for establishing linkage maps and for quantitative trait loci (QTL) discovery. Expand