Results 41 to 50 of about 328,565 (318)

Wheat-barley hybridization – the last forty years [PDF]

, 2013
Several useful alien gene transfers have been reported from related species into wheat (Triticum aestivum), but very few publications have dealt with the development of wheat/barley (Hordeum vulgare) introgression lines. An overview is given here of
Szakács, Éva, Linc, Gabriella, Éva Szakács, Gabriella Linc, Molnár-Láng, Márta, Márta Molnár-Láng   +5 more
core   +1 more source

Laser microdissection as a new approach to prefertilization genetic diagnosis [PDF]

, 2000
The genetic status of oocytes can be determined by polar body (PB) analysis. Following PB extraction, a genetic evaluation is performed. As each PB contains the complementary genetic material of the oocyte, PB analysis reveals information about its ...
Schütze, Karin, Buchholz, Tina, Clement-Sengewald, Annette   +2 more
core   +1 more source

Introduction : extent, processes and evolutionary impact of interspecific hybridization in animals

, 2008
Since the time of Charles Darwin, studies of interspecific hybridization have been a major focus for evolutionary biologists. Although this phenomenon has often been viewed as problematic in the fields of ecology, taxonomy and systematics, it has become ...
Brede, Nora, Streit, Bruno, Schwenk, Klaus   +2 more
core   +1 more source

Molecular evidence of hybridization in sympatric populations of the Enantia jethys complex (Lepidoptera: Pieridae).

PLoS ONE, 2018
Hybridization events are frequently demonstrated in natural butterfly populations. One interesting butterfly complex species is the Enantia jethys complex that has been studied for over a century; many debates exist regarding the species composition of ...
Jovana M Jasso-Martínez, Salima Machkour-M'Rabet, Roger Vila, Rosario Rodríguez-Arnaiz, América Nitxin Castañeda-Sortibrán   +4 more
doaj   +1 more source

Widespread Hybridization between Invasive Bleak (Alburnus alburnus) and Iberian Chub (Squalius spp.): A Neglected Conservation Threat

Fishes, 2022
Hybridization between native and nonnative fish species is a major conservation issue, especially in ecosystems with high levels of endemism, such as Iberian streams.
Manuel Curto, Miguel Morgado-Santos, Carlos M. Alexandre, Maria Judite Alves, Hugo F. Gante, Christos Gkenas, João P. Medeiros, Paulo J. Pinheiro, Pedro R. Almeida, Maria Filomena Magalhães, Filipe Ribeiro   +10 more
doaj   +1 more source

Quantitative genetics of intraspecies hybrids [PDF]

Heredity, 1999
Quantitative genetics generally is based on the properties of the randomly fertilized (RF) population or inbred derivatives of it. Simple hybrids and hybrid swarms do not conform to this model; and only some properties of hybrid means appear to have been available.
openaire   +2 more sources

Bucking the trend in wolf-dog hybridization: first evidence from europe of hybridization between female dogs and male wolves. [PDF]

PLoS ONE, 2012
Studies on hybridization have proved critical for understanding key evolutionary processes such as speciation and adaptation. However, from the perspective of conservation, hybridization poses a concern, as it can threaten the integrity and fitness of ...
Maris Hindrikson, Peep Männil, Janis Ozolins, Andrzej Krzywinski, Urmas Saarma   +4 more
doaj   +1 more source

Interspecific Hybridization Is an Important Driving Force for Origin and Diversification of Asian Cultivated Rice Oryza sativa L.

Frontiers in Plant Science, 2022
As one of the most important crops, Asian cultivated rice has evolved into a complex group including several subgroups adapting various eco-climate-systems around the globe.
Jiawu Zhou, Ying Yang, Yonggang Lv, Qiuhong Pu, Jing Li, Yu Zhang, Xianneng Deng, Min Wang, Min Wang, Jie Wang, Jie Wang, Dayun Tao   +11 more
doaj   +1 more source

The effect of polyploidy and hybridization on the evolution of floral colour in Nicotiana (Solanaceae). [PDF]

, 2015
Speciation in angiosperms can be accompanied by changes in floral colour that may influence pollinator preference and reproductive isolation. This study investigates whether changes in floral colour can accompany polyploid and homoploid hybridization ...
Taylor, L, Arnold, Sarah E., Arnold, SE, Arnold, Sarah E. J., Chittka, Lars, Chittka, L, Kovařík, A, Le Comber, S., Knapp, S., Baldwin, Ian, Mhiri, C, Verity, Robert, Verity, R, Le Comber, SC, Taylor, Lin, Kelly, L., Le Comber, Steven C., Knapp, Sandra, Knapp, S, Leitch, A.R., Arnold, SEJ, Baldwin, I., Chase, M.W., Chittka, L., Leitch, AR, Leitch, Andrew R., Arnold, Sarah E.J., Mhiri, Corinne, McCarthy, E.W., Chase, Mark W., Kelly, LJ, Taylor, L., Arnold, S.E.J., Chase, M., Kovařík, Aleš, Kovařík, A., McCarthy, E., Leitch, A., Verity, R., McCarthy, Elizabeth W., Dodsworth, Steven, Kelly, L.J., Kelly, Laura J., Dodsworth, S., Mhiri, C., Dodsworth, S, Chase, MW, Arnold, S., Baldwin, I.T., Baldwin, Ian T., Le Comber, S.C., Baldwin, IT, McCarthy, EW   +52 more
core   +1 more source

The Developmental Genetics of Hybrid Inviability: A Mitotic Defect in Drosophila Hybrids [PDF]

Genetics, 1997
We report studies of the developmental basis of hybrid inviability in the Drosophila melanogaster complex. The pathology of these hybrids closely resembles that of mitotic mutants in D. melanogaster. We use mosaic and cytological analyses to show that hybrid male inviability is associated with, and probably caused by, a defect in mitotic cell division.
H A, Orr, L D, Madden, J A, Coyne, R, Goodwin, R S, Hawley   +4 more
openaire   +2 more sources