Molecular and genetic analyses of Tic20 homologues in Arabidopsis thaliana chloroplasts. by Kasmati, A, Töpel, M, Patel, R, Murtaza, G, Jarvis, P

“…In contrast, tic20-I tic20-IV double homozygotes could not be identified, due to gametophytic and embryonic lethality. Redundancy between atTic20-I and atTic20-IV was confirmed by complementation analysis. …”

Niche Shifts, Hybridization, Polyploidy and Geographic Parthenogenesis in Western North American Hawthorns (<i>Crataegus</i> subg. <i>Sanguineae</i>, Rosaceae) by Timothy A. Dickinson, Brigitte Xueqi Yan, Shery Han, Mehdi Zarrei

“…They are presumptively self-fertile polyploids with pseudogamous gametophytic apomixis. Their morphologies, geographic ranges, and niche characteristics resemble those of their diploid, sexual parent or are intermediate between them and those of their other parent, one or both of two partially sympatric tetraploid apomicts in red-fruited <i>C.…”
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A Key Study on Pollen-Specific <i>SFB</i> Genotype and Identification of Novel <i>SFB</i> Alleles from 48 Accessions in Japanese Apricot <i>(Prunus mume</i> Sieb. et Zucc.) by Daouda Coulibaly, Guofeng Hu, Zhaojun Ni, Kenneth Omondi Ouma, Xiao Huang, Shahid Iqbal, Chengdong Ma, Ting Shi, Faisal Hayat, Benjamin Karikari, Zhihong Gao

“…However, Japanese apricot is a species with a typical gametophytic self-incompatibility (GSI), and its <i>SFB</i> alleles available are limited, although they are required for studying GSI. …”
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Polyamines Involved in Regulating Self-Incompatibility in Apple by Jie Yu, Baoan Wang, Wenqi Fan, Songbo Fan, Ya Xu, Chunsheng Liu, Tianxing Lv, Wanda Liu, Ling Wu, Linfeng Xian, Tianzhong Li

“…Apple exhibits typical gametophytic self-incompatibility, in which self-S-RNase can arrest pollen tube growth, leading to failure of fertilization. …”
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Is apomixis occurring in walnut (Juglans regia L.)? New data from progeny molecular tests and cytological investigations shed light on its reproductive system by Sahar Solhjoo, Reza Fatahi, Zabihollah Zamani, Abdolkarim Chehregani Rad, Fabio Palumbo, Gianni Barcaccia

“…Overall, our findings suggest that the occurrence of gametophytic apomixis is unlikely in J. regia, but sporophytic apomixis cannot be completely ruled out.…”
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Arabidopsis 3β-Hydroxysteroid Dehydrogenases/C4-Decarboxylases Are Essential for the Pollen and Embryonic Development by Jiawen Pan, Weifeng Li, Binzhao Chen, Linchuan Liu, Jianjun Zhang, Jianming Li

“…Here we employed a CRISPR/Cas9-based genome-editing approach to generate knockout mutants for two Arabidopsis <i>3βHSD/D</i> genes, <i>HSD1</i> and <i>HSD2</i>, and discovered the male gametophytic lethality for the <i>hsd1 hsd2</i> double mutation. …”
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HT-B and S-RNase CRISPR-Cas9 double knockouts show enhanced self-fertility in diploid Solanum tuberosum by Sarah Lee, Felix E. Enciso-Rodriguez, William Behling, Thilani Jayakody, Kaela Panicucci, Daniel Zarka, Satya Swathi Nadakuduti, C. Robin Buell, Norma C. Manrique-Carpintero, David S. Douches

“…The Gametophytic Self-Incompatibility (GSI) system in diploid potato (Solanum tuberosum L.) poses a substantial barrier in diploid potato breeding by hindering the generation of inbred lines. …”
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Deciphering <i>S</i>-RNase Allele Patterns in Cultivated and Wild Accessions of Italian Pear Germplasm by Stefania Bennici, Mario Di Guardo, Gaetano Distefano, Giuseppina Las Casas, Filippo Ferlito, Paolo De Franceschi, Luca Dondini, Alessandra Gentile, Stefano La Malfa

“…The genus <i>Pyrus</i> is characterized by an <i>S</i>-RNase-based gametophytic self-incompatibility (GSI) system, a mechanism that promotes outbreeding and prevents self-fertilization. …”
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Macaronesia Acts as a Museum of Genetic Diversity of Relict Ferns: The Case of <i>Diplazium caudatum</i> (Athyriaceae) by Samira Ben-Menni Schuler, Jesús Picazo-Aragonés, Fred J. Rumsey, Ana Teresa Romero-García, Víctor N. Suárez-Santiago

“…The results of the AMOVA analysis and the indices of clonal diversity and linkage disequilibrium suggest that <i>D. caudatum</i> is a species in which inter-gametophytic outcrossing predominates, and that in the Andalusian populations there was a shift in mating system toward increased inbreeding and/or clonality. …”
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Comparative Physiological, Transcriptomic, and Metabolomic Analyses of <i>Acacia mangium</i> Provide New Insights into Its Molecular Mechanism of Self-Incompatibility by Ruping Zhang, Liejian Huang, Bingshan Zeng

“…Observations of pollen germination after self-pollination using fluorescence microscopy suggested that the SI type of <i>A. mangium</i> is gametophytic self-incompatibility (GSI). A combined transcriptomic and metabolomic analysis showed that DEGs (differentially expressed genes) related to SI (6 S-glycoproteins, 93 F-box proteins, 69 26S proteasomes, 38 calcium-dependent protein kinases/calmodulin and 41 thioredoxin genes) were significantly enriched in six KEGG (sulfur metabolism, tyrosine metabolism, phenylalanine metabolism, butanoate metabolism, and valine, leucine, and isoleucine degradation). …”
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Occurrence of the Green Shield-Moss <i>Buxbaumia viridis</i> (Moug.) Brid. in the Bieszczady Mountains of Poland by Piotr Brewczyński, Kamil Grałek, Piotr Bilański

“…The small-sized gametophytes and sporophytes of the green shield-moss <i>Buxbaumia viridis</i> (Moug.) …”
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Reproduction Modes and Conservation Implications in Three Polyploid <i>Sorbus</i> Stenoendemics in Eastern Slovakia (Central Europe) by Vladislav Kolarčik, Mária Mirková, Vlastimil Mikoláš

“…Moreover, hybridization is possible between several parental taxa. Gametophytic apomixis, which is common among polyploid <i>Sorbus</i> taxa, indicates the role of clonal reproduction in the evolutionary stabilization of hybridogeneous genotypes. …”
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Controlled cultivation of different stages of Pyropia orbicularis (Rhodophyta; Bangiales) from the South Pacific coast by Florentina Piña, Alejandra Núñez, Matías Araya, Jorge Rivas, Constanza Hernández, Cristian Bulboa, Loretto Contreras-Porcia

“…The species of the genus Pyropia have a diplohaplontic life cycle, in which there is a gametophytic phase (n) or blade, and a microscopic sporophytic phase (2n), known as conchocelis, as well as intermediate stages of development. …”
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Spotting the Targets of the Apospory Controller <i>TGS1</i> in <i>Paspalum notatum</i> by Carolina Marta Colono, Maricel Podio, Lorena Adelina Siena, Juan Pablo A. Ortiz, Olivier Leblanc, Silvina Claudia Pessino

“…In the subtropical grass <i>Paspalum notatum</i>, one of the controllers of apospory, a main component of gametophytic apomixis reproduction, is <i>TRIMETHYLGUANOSINE SYNTHASE 1</i> (<i>TGS1</i>), a multifunctional gene previously associated with RNA cleavage regulation (including mRNA splicing as well as rRNA and miRNA processing), transcriptional modulation and the establishment of heterochromatin. …”
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Specific functions of single pistil S-RNases in S-gene homozygous Pyrus germplasm by Yongjie Qi, Zhenghui Gao, Na Ma, Liqing Lu, Fanjun Ke, Shaoling Zhang, Yiliu Xu

“…Abstract Gametophytic self-incompatibility (SI) is regulated by S-allele recognition; that is, pollen in a style with the same S-genotype will undergo programmed cell death and stop growing so that it is unable to complete double fertilization, ultimately resulting in the SI response. …”
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<it>Erwinia carotovora </it>elicitors and <it>Botrytis cinerea </it>activate defense responses in <it>Physcomitrella patens</it> by Bentancor Marcel, Gaggero Carina, Castro Alexandra, Oliver Juan, Ponce de León Inés, Vidal Sabina

“…</p> <p>Results</p> <p><it>B. cinerea </it>and <it>E.c. carotovora </it>were found to readily infect <it>Physcomitrella </it>gametophytic tissues and cause disease symptoms. Treatments with <it>B. cinerea </it>spores or cell-free culture filtrates from <it>E.c. carotovora</it>_SCC1(CF_(SCC1)), resulted in disease development with severe maceration of <it>Physcomitrella </it>tissues, while CF_(SCC3193)produced only mild maceration. …”
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<i>BaZFP1,</i> a C2H2 Subfamily Gene in Desiccation-Tolerant Moss <i>Bryum argenteum</i>, Positively Regulates Growth and Development in <i>Arabidopsis</i> and Mosses by Ping Zhou, Xiujin Liu, Xiaoshuang Li, Daoyuan Zhang

“…The overexpression of the <i>BaZFP1</i> gene in the <i>Physcomitrium patens</i> and <i>B. argenteum</i> promoted differentiation and growth of gametophytes. Heterologous expression in <i>Arabidopsis</i> regulated the whole growth and development cycle. …”
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Transcriptomics integrated with metabolomics reveals the effect of cold stress on rice microspores by Yingbo Li, Yingjie Zong, Wenrui Li, Guimei Guo, Longhua Zhou, Hongwei Xu, Runhong Gao, Chenghong Liu

“…Cold treatment has been reported to reprogram the gametophytic pathway in various plant species. However, the exact mechanism(s) underlying the effect of cold pre-treatment of floral buds on the efficiency of ME is still not clear. …”
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The sporophytic type of fertility restoration in the A3 CMS-inducing cytoplasm of sorghum and its modification by plant water availability conditions by L. A. Elkonin, V. V. Kozhemyakin, M. I. Tsvetova

“…The A3 type of CMS in sorghum is one of the most difficult to restore fertility because of the low frequency of fertilityrestoring genes among sorghum accessions, the complex mechanism of fertility restoration that occurs with the complementary interaction of two gametophytic genes Rf3 and Rf4, and the sensitivity of their expression to air and soil drought. …”
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Potential of Impedance Flow Cytometry to Assess the Viability and Quantity of <i>Cannabis sativa</i> L. Pollen by Hamza Rafiq, Jens Hartung, Lisa Burgel, Georg Röll, Simone Graeff-Hönninger

“…In this context, the identification of the viability and quantity of pollen, which represents the fitness of male gametophytes, to accomplish successful pollination is of high importance. …”
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