Results 71 to 80 of about 744 (199)

Embryo sac development in some South African cultivars of Lantana camara

Bothalia: African Biodiversity & Conservation, 1982
Twenty embryo sacs from each of 20 different  Lantana camara L. cultivars naturalized in South Africa were examined. The normal sexual embryo sacs were monosporic 8-nucleated embryo sacs of the polygonum type and were encountered in 55% of the material ...
J. J. Spies, C. H. Stirton
doaj   +1 more source

Retro-Element Gypsy-163 Is Differentially Methylated in Reproductive Tissues of Apomictic and Sexual Plants of Cenchrus ciliaris

Frontiers in Genetics, 2020
Apomixis, an asexual mode of reproduction through seeds, has immense scope for crop improvement due to its ability to fix hybrid vigor. In C. ciliaris, a predominantly apomictically reproducing range grass, apomixis is genetically controlled by an ...
Priyanka Rathore, Soom Nath Raina, Suresh Kumar, Vishnu Bhat   +3 more
doaj   +1 more source

Maternal haploid induction in maize via mutation of Gamete Expression protein 1

Plant Biotechnology Journal, Volume 23, Issue 7, Page 2595-2607, July 2025.
Summary Doubled haploid (DH) technology, based on haploid induction (HI), is a crucial tool in enhancing crop‐breeding efficiency and has been successfully applied in various plant species. While many HI‐related genes have been identified using diverse strategies, the genetic basis and molecular mechanisms underlying HI remain incompletely understood ...
Yuhui Sun, Lulu Hou, Chengcheng Li, Zijian Zhou, Jianyu Wu, Haidong Yu   +5 more
wiley   +1 more source

Role of paternal Oryza sativa Baby Booms (OsBBMs) in initiating de novo gene expression and regulating early zygotic development in rice

The Plant Journal, Volume 122, Issue 6, June 2025.
SUMMARY Oryza sativa BABY BOOM 1 (OsBBM1), a member of the AP2/ERF family of transcription factors, is expressed from paternal allele in rice zygote and plays a crucial role in initiating zygotic development. However, the mechanism how the paternal OsBBM1 drives this development remains unclear. Rice zygotes with four different gamete combinations with
Nargis Akter, Takumi Tezuka, Kasidit Rattanawong, Aya Satoh, Atsuko Kinoshita, Yutaka Sato, Takashi Okamoto   +6 more
wiley   +1 more source

Reproductive strategy in the Ranunculus auricomus complex (ranunculaceae)

Acta Societatis Botanicorum Poloniae, 2014
A preliminary study of reproductive strategy was carried out on plants representing four cytotypes of the Ranunculus auricomus complex. Diploid plants reproduce sexually, triploids, tetraploids and hexaploids have an apomictic mode of reproduction ...
Romana Izmaiłow
doaj   +1 more source

The relation of meiotic behaviour to hybridity, polyploidy and apomixis in the Ranunculus auricomus complex (Ranunculaceae)

BMC Plant Biology, 2020
Background Hybridization and polyploidization are powerful evolutionary factors that are associated with manifold developmental changes in plants such as irregular progression of meiosis and sporogenesis.
Birthe H. Barke, Kevin Karbstein, Mareike Daubert, Elvira Hörandl   +3 more
doaj   +1 more source

Exogenous Methylation Inhibitor 5‐Azacytidine Accelerates Postharvest Leaf Senescence in Pak Choi by Modulating Transcriptomic and Metabolomic Profiles

Food Frontiers, Volume 6, Issue 2, Page 1027-1040, March 2025.
ABSTRACT The senescence of leafy vegetables is inherent and general after harvest. DNA methylation affects the senescence process of plant leaves. Limited studies have explored the impact of exogenous methylation inhibitors on postharvest vegetables and the mechanisms of their effects on the transcriptome and metabolome during storage.
Dan Wang, Zhijun Zhang, Tongbing Su, Xiuyun Zhao, Weihong Wang, Xiaoyun Xin, Deshuang Zhang, Yangjun Yu, Zhongjiang Wang, Linyi Zhou, Peirong Li, Fenglan Zhang, Shuancang Yu   +12 more
wiley   +1 more source

Small RNA-seq reveals novel regulatory components for apomixis in Paspalum notatum

BMC Genomics, 2019
Background Apomixis is considered an evolutionary deviation of the sexual reproductive pathway leading to the generation of clonal maternal progenies by seeds.
Juan Pablo A. Ortiz, Olivier Leblanc, Cristian Rohr, Mauricio Grisolia, Lorena A. Siena, Maricel Podio, Carolina Colono, Celeste Azzaro, Silvina C. Pessino   +8 more
doaj   +1 more source

Emergence of apospory and bypass of meiosis via apomixis after sexual hybridisation and polyploidisation

, 2014
Hybridisation and polyploidy are major forces contributing to plant speciation. Homoploid (2x) and heteroploid (3x) hybrids, however, represent critical stages for evolution due to disturbed meiosis and reduced fertility.
Elvira Hörandl, Johann Greilhuber, Paun, Ovidiu, Marco Pellino, Greilhuber, Johann, Sharbel, Timothy F., Timothy F. Sharbel, Diego Hojsgaard, Ovidiu Paun, Pellino, Marco, Hojsgaard, Diego H., Hoerandl, Elvira   +11 more
core   +1 more source

Translocation of a parthenogenesis gene candidate to an alternate carrier chromosome in apomictic Brachiaria humidicola

BMC Genomics, 2019
Background The apomictic reproductive mode of Brachiaria (syn. Urochloa) forage species allows breeders to faithfully propagate heterozygous genotypes through seed over multiple generations.
Margaret Worthington, Masumi Ebina, Naoki Yamanaka, Christopher Heffelfinger, Constanza Quintero, Yeny Patricia Zapata, Juan Guillermo Perez, Michael Selvaraj, Manabu Ishitani, Jorge Duitama, Juan Fernando de la Hoz, Idupulapati Rao, Stephen Dellaporta, Joe Tohme, Jacobo Arango   +14 more
doaj   +1 more source