Results 51 to 60 of about 600 (129)
Status of Global Pearl Millet Breeding Programs and the Way Forward
Crop Science, Volume 57, Issue 6, Page 2891-2905, November–December 2017., 2017 Pearl millet [Pennisetum glaucum (L.) R. Br.] is a warm‐season, C4 annual cereal primarily grown in Africa and India for food and fodder. It is also grown in the United States, mainly as a forage crop on a limited area. It is the sixth most important cereal crop in the world. More than 90 million people around the world rely on it as a food grain.
Desalegn D. Serba +3 more
wiley +1 more source
New Phytologist, Volume 204, Issue 4, Page 1000-1012, December 2014., 2014 Summary 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. Apomixis – asexual reproduction via seeds – can overcome hybrid sterility, but requires several concerted alterations of ...
Diego Hojsgaard +5 more
wiley +1 more source
Ploidy-dependent effect of prolonged photoperiod on mode of reproduction and photosynthesis in the Ranunculus auricomus complex (Ranunculaceae) [PDF]
, 2021 Polyploidy, whole-genome duplication, enhances stress-tolerance to drastic environmental compared to their diploid progenitor by enabling more extensive adaptation as advantages of gene and genome duplication.
Ulum, Fuad Bahrul
core +1 more source
Sexual polyploidization in plants – cytological mechanisms and molecular regulation
New Phytologist, Volume 198, Issue 3, Page 670-684, May 2013., 2013 Summary In the plant kingdom, events of whole genome duplication or polyploidization are generally believed to occur via alterations of the sexual reproduction process. Thereby, diploid pollen and eggs are formed that contain the somatic number of chromosomes rather than the gametophytic number.
Nico De Storme, Danny Geelen
wiley +1 more source
New Phytologist, Volume 198, Issue 2, Page 605-616, April 2013., 2013 Summary The flow cytometric seed screen allows for identification of reproductive modes of seed formation and inference of the ploidy of contributing gametes. However, the lack of a mathematical formalization to infer male/female genomic contributions, and the prerequisite of a binucleate female contribution to the endosperm limits its applicability ...
Christoph Dobeš +3 more
wiley +1 more source
BMC Plant Biology, 2018 Background Asexual seed formation (apomixis) has been observed in diverse plant families but is rare in crop plants. The generation of apomictic crops would revolutionize agriculture, as clonal seed production provides a low cost and efficient way to ...
Sophia Bräuning +4 more
doaj +1 more source
Timing of megasporogenesis in Tripsacum species (Poaceae) as related to the control of apoximis and sexuality [PDF]
, 1994 Chez différentes espèces pseudogames aposporiques (#Panicum maximum, Ranunculus auricomus, Paspalumnotatum$), des différences pour la durée de la mégasporogenèse ont été observées entre les formes sexuées et aposporiques ; les gamétophytes femelles ...
Leblanc, Olivier, Savidan, Yves
core
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 +6 more
wiley +1 more source
Ecological and evolutionary implications of hybridization, polyploidy and apomixis in angiosperms
Botanical SciencesHybridization, polyploidy, and apomixis are related to the diversification of angiosperms, generating complex taxonomic relationships between species. Despite the differences in the frequencies of these phenomena, apomixis, the asexual seed production ...
Cinthya I. Cervantes-Díaz +2 more
doaj +1 more source
On the presence of fertile gametophytes of Padina pavonica (Dictyotales, Phaeophyceae) from the Iberian coasts [PDF]
, 2007 The gametophytes of Padina pavonica (L.) Thivy have received little attention in literature. Both female and predominantly male monoecious gametophytes of P. pavonica are recorded for the first time in the Iberian Peninsula. A detailed description of the
Barceló Martí, M. Carme +3 more
core +1 more source