Pollen viability, longevity, and function in angiosperms: key drivers and prospects for improvement [0.03%]
被子植物花粉活力、寿命及其功能的关键决定因素和改良前景
Rasha Althiab-Almasaud,Eve Teyssier,Christian Chervin et al.
Rasha Althiab-Almasaud et al.
Pollen grains are central to sexual plant reproduction and their viability and longevity/storage are critical for plant physiology, ecology, plant breeding, and many plant product industries. Our goal is to present progress in assessing pol...
Yesenia Madrigal,Juan F Alzate,Natalia Pabón-Mora
Yesenia Madrigal
The Orchidaceae is a mega-diverse plant family with ca. 29,000 species with a large variety of life forms that can colonize transitory habitats. Despite this diversity, little is known about their flowering integrators in response to specif...
Heterozygosity analysis of spontaneous 2n female gametes and centromere mapping of the diploid Hevea brasiliensis based on full-sib triploid populations [0.03%]
基于全同胞三倍体群体的巴西橡胶树二倍体居群杂合度分析及着丝粒定位研究
Yuan-Yuan Zhang,Hong-Kun Li,Xiao Huang et al.
Yuan-Yuan Zhang et al.
Unreduced megagametophytes via second-division restitution were confirmed through heterozygosity analysis, and four candidate physical centromeres of rubber were located for the first time. The evaluation of maternal heterozygosity restitut...
Darwin's inflorescence syndrome is indeed associated with bee pollination [0.03%]
达尔文的花序综合症确实与蜜蜂传粉相关
Marina M Strelin,Nicolay L da Cunha,Aimé Rubini-Pisano et al.
Marina M Strelin et al.
A relationship between vertical acropetal inflorescences with protandrous flowers and bee pollination was hypothesized by Darwin back in 1877. Here we provide empirical evidence supporting this association across the angiosperms. Plant repr...
Ajayraj Kushwaha,Vipul Mishra,Durgesh Kumar Tripathi et al.
Ajayraj Kushwaha et al.
Petal is one of the most esthetic and essential parts of a flower that fascinates the pollinators to enhance pollination. Petal senescence is a highly controlled and organized natural phenomenon assisted by phytohormones and gene regulation...
Comparative analysis of molecular and morphological diversity in two diploid Paspalum species (Poaceae) with contrasting mating systems [0.03%]
两种交配系统相反的双倍体Paspalum物种（草 family）的分子和形态多样性比较分析
A Verena Reutemann,Ana I Honfi,Piyal Karunarathne et al.
A Verena Reutemann et al.
Interspecific comparison of two Paspalum species has demonstrated that mating systems (selfing and outcrossing) contribute to variation (genetically and morphologically) within species through similar but mutually exclusive processes. Matin...
Arabidopsis Sar1 isoforms play redundant roles in female gametophytic development [0.03%]
沙豆菜Sar1同工酶在雌配子体发育中发挥冗余作用
Xin Liang,Shan-Wei Li,Jin-Li Wang et al.
Xin Liang et al.
Functional loss of Arabidopsis Sar1b with that of either Sar1a or Sar1c inhibits mitosis of functional megaspores, leading to defective embryo sac formation and reduced fertility. Vesicular trafficking among diverse endomembrane compartment...
Evolutionary features of microspore and pollen grain development in Cyperaceae [0.03%]
莎草科花粉母细胞和小孢子发育的演化特征分析
Danilo Massuia Rocha,Fernanda Mayara Nogueira,Thiago André et al.
Danilo Massuia Rocha et al.
Asymmetric meiosis leading to the release of pollen grains as pseudomonads is a synapomorphy in Cyperaceae, but differences in microspore development are relevant in the family's evolutionary history. Cyperaceae members present atypical mic...
Interploidy gene flow via a 'pentaploid bridge' and ploidy reduction in Cystopteris fragilis fern complex (Cystopteridaceae: Polypodiales) [0.03%]
通过"五倍体桥"的 interploidy 基因流及 Cystopteris fragilis 植物复合体（蚌口蕨科：真脉目）中的多倍体减少
Jan Ptáček,Libor Ekrt,Ondřej Hornych et al.
Jan Ptáček et al.
Our results indicate the existence of interploidy gene flow in Cystopteris fragilis, resulting in sexual triploid and diploid gametophytes from pentaploid parents. Similar evolutionary dynamics might operate in other fern complexes and need...
The roles of a novel CDKB/KRP/FB3 cell cycle core complex in rice gametes and initiation of embryogenesis [0.03%]
水稻配子中新细胞周期核心复合体CDKB/KRP/FB3的作用及其胚胎发生的启动
Hengping Xu,Laura Bartley,Marc Libault et al.
Hengping Xu et al.
The cell cycle controls division and proliferation of all eukaryotic cells and is tightly regulated at multiple checkpoints by complexes of core cell cycle proteins. Due to the difficulty in accessing female gametes and zygotes of flowering...