Results 61 to 70 of about 600 (129)

The Potential for Evolutionary Responses to Cell-Lineage Selection on Growth Form and Its Plasticity in a Red Seaweed [PDF]

, 2008
Despite much theoretical discussion on the evolutionary significance of intraclonal genetic variation, particularly for modular organisms whose lack of germ-soma segregation allows for variants arising in clonal growth to contribute to evolutionary ...
Monro, Keyne, Poore, Alistair G. B.
core   +1 more source

Taxonomic identification and life cycle comparison of two populations of the monostromatic green algae Monostroma nitidum

Ecology and Evolution, Volume 14, Issue 5, May 2024.
This study employed molecular markers and morphological studies of two populations of Monostroma nitidum collected from YJ and ZJ. The results revealed no obvious differences in tufA and 18S rDNA sequences between the two populations, although there were extremely significant differences in morphological characteristics. M.
Jiawei Liao, Sipan Wang, Kun Lin, Yongjian Huang, Xinyi Chen, Rong Xin, Youyou Guo, Enyi Xie   +7 more
wiley   +1 more source

Depletion of Key Meiotic Genes and Transcriptome-Wide Abiotic Stress Reprogramming Mark Early Preparatory Events Ahead of Apomeiotic Transition

Frontiers in Plant Science, 2016
Molecular dissection of apomixis - an asexual reproductive mode - is anticipated to solve the enigma of loss of meiotic sex, and to help fixing elite agronomic traits.
Jubin N Shah, Olga Kirioukhova, Pallavi Pawar, Muhammad Tayyab, Juan Luis Mateo, Amal Joseph Johnston   +5 more
doaj   +1 more source

Distinct geographic parthenogenesis in spite of niche conservatism and a single ploidy level: A case of Rubus ser. Glandulosi (Rosaceae)

New Phytologist, Volume 242, Issue 3, Page 1348-1362, May 2024.
Summary Asexual organisms often differ in their geographic distributions from their sexual relatives. This phenomenon, termed geographic parthenogenesis, has long been known, but the underlying factors behind its diverse patterns have been under dispute. Particularly problematic is an association between asexuality and polyploidy in most taxa. Here, we
Michal Sochor, Martin Duchoslav, Věra Forejtová, Michal Hroneš, Michaela Konečná, Bohumil Trávníček   +5 more
wiley   +1 more source

Pathways to polyploidy : indications of a female triploid bridge in the alpine species Ranunculus kuepferi (Ranunculaceae) [PDF]

, 2017
Polyploidy is one of the most important evolutionary processes in plants. In natural populations, polyploids usually emerge from unreduced gametes which either fuse with reduced ones, resulting in triploid offspring (triploid bridge), or with other ...
De Storme, Nico, Dullinger, Stefan, Geelen, Danny, Hörandl, Elvira, Kirchheimer, Bernhard, Schinkel, Christoph CF   +5 more
core   +2 more sources

Molecular control of autonomous embryo and endosperm development [PDF]

, 2018
Precocious seed development is usually prevented by a series of mechanisms that ensure seed production results from double fertilization. These events are circumvented in natural apomictic plant species that reproduce clonally through seed.
Curtis, Mark, Grossniklaus, Ueli
core  

Genes modulating the increase in sexuality in the facultative diplosporous grass eragrostis curvula under water stress conditions [PDF]

, 2020
Eragrostis curvula presents mainly facultative genotypes that reproduce by diplosporous apomixis, retaining a percentage of sexual pistils that increase under drought and other stressful situations, indicating that some regulators activated by stress ...
Bellido, Andrés, Carballo, José, Echenique, Carmen Viviana, Gallardo, Jimena Alicia, Gallo, Cristian Andrés, Rodrigo, Juan Manuel, Selva, Juan Pablo, Zappacosta, Diego Carlos   +7 more
core   +1 more source

Pharmacologically Induced Meiosis Apomeiosis Interconversions in \u3ci\u3eBoechera\u3c/i\u3e, \u3ci\u3eArabidopsis\u3c/i\u3e and \u3ci\u3eVigna\u3c/i\u3e [PDF]

, 2018
Apomixis is a clonal propagation method that produces offspring identical to the mother plant. With this feature, superior traits could be maintained over generations. However, our knowledge about apomixis is limited.
Gao, Lei
core   +1 more source

The CYCLIN-A CYCA1;2/TAM Is Required for the Meiosis I to Meiosis II Transition and Cooperates with OSD1 for the Prophase to First Meiotic Division Transition [PDF]

, 2010
Meiosis halves the chromosome number because its two divisions follow a single round of DNA replication. This process involves two cell transitions, the transition from prophase to the first meiotic division (meiosis I) and the unique meiosis I to ...
A De Muyt, A Sessions, AL Marston, AM Koltunow, BM Kiburz, BP Dilkes, C Dahmann, C Spillane, C Sweeney, Chloé Girard, Christine Horlow, D Inze, D Izawa, D Liu, D Preuss, D Weigel, D Zickler, E Ledan, E Sanchez Moran, F Bretagnolle, G Wang, Gregory P. Copenhaver, Gregory S. Barsh, H Kobayashi, I d'Erfurth, I d'Erfurth, Isabelle d'Erfurth, J Vignard, JA Pesin, Jennifer P. C. To, JL Gerton, JL Magnard, JM Alonso, JW Brown, KE Francis, KT Jones, L Chelysheva, Laurence Cromer, LE Berchowitz, LE Berchowitz, Luke E. Berchowitz, M Iwabuchi, M Ohe, MA Estelle, MM Neff, MP Alexander, MS Ramanna, N Dissmeyer, N Hashimoto, PJ Barrell, R Mercier, R Yang, RA Bicknell, Raphael Mercier, RL Scholl, S Griffiths, S Madgwick, SE Ravnik, SE Ravnik, SP Otto, SP Otto, Sylvie Jolivet, TM Carlile, V Sundaresan, W Tang, Y Azumi, Y Kimata, Y Wang, Yujin Sun   +68 more
core   +7 more sources

Characterization of tissue specific expressed proteins and metabolites in Cenchrus polystachion (L.) Schult and their role in apomixis [PDF]

, 2020
Agricultural production can be aggrandized by adaptation of trending technologies or processes which focus on increase in seed production. Asexual reproduction in plants or Apomixis is such a process, but its absence in major crop plants has paved an ...
Barage, Sagar, Desai, Neetin, Somayajula, Deepti   +2 more
core   +2 more sources