scholarly journals Pollen precedence in sexual Potentilla puberula and its role as a protective reproductive barrier against apomictic cytotypes

Taxon ◽  
2018 ◽  
Vol 67 (6) ◽  
pp. 1132-1142 ◽  
Author(s):  
Henar Alonso-Marcos ◽  
Karl Hülber ◽  
Tuuli Myllynen ◽  
Patricia Pérez Rodríguez ◽  
Christoph Dobeš
Keyword(s):  
Reproductive Barrier

Hybrid rice: Reproductive barrier

Nature China ◽  
2008 ◽  
Author(s):  
Jane Qiu
Keyword(s):  
Hybrid Rice ◽  
Reproductive Barrier

Reply to Johannesson & Johannesson

1993 ◽  
Vol 73 (1) ◽  
pp. 250-250
Author(s):  
J. Grahame ◽  
P. J. Mill ◽  
M. Double ◽  
S. L. Hull
Keyword(s):  
Genetic Relationships ◽  
Taxonomic Status ◽  
Reproductive Barrier ◽  
Diversifying Selection ◽  
Pattern Of Variation

Johannesson & Johannesson (1993) contend that we have misread their earlier paper (Johannesson & Johannesson, 1990). They write that it is only possible to use neutral loci to study genetic relationships in closely related taxa (Johannesson & Johannesson, 1993) and that, there-fore, they had dismissed the variation in Aat-1 when considering the taxonomic status of Littorina neglecta (Johannesson & Johannesson, 1993). However, in their earlier paper they write: & ldquo;This [the pattern of variation in Aat-1] indicates that the within-site differentiation at Aat-1 is caused by diversifying selection in the two different micro-habitats rather than to a reproductive barrier between neglecta and saxatilis type snails” (Johannesson & Johannesson, 1990, p. 94). Therefore, after dealing separately with the pattern of variation at four loci which are ‘presumably neutral’ (Johannesson & Johannesson, 1990, p. 96), the Aat-1 variation is considered by these authors in the context of a putative reproductive barrier. The argument is repeated at the beginning of the discussion in Johannesson & Johannesson (1990, p. 95).

Interspecific pollen competition as a reproductive barrier between sympatric species of Helianthus (Asteraceae)

1995 ◽  
Vol 82 (4) ◽  
pp. 515-519 ◽  
Author(s):  
Loren H. Rieseberg ◽  
Andrée M. Desrochers ◽  
Sue J. Youn
Keyword(s):  
Sympatric Species ◽  
Reproductive Barrier ◽  
Pollen Competition

scholarly journals Evidence of a reproductive barrier between two forms of the marine periwinkle Littorina fabalis (Gastropoda)

1998 ◽  
Vol 63 (3) ◽  
pp. 349-365 ◽  
Author(s):  
Andrey Tatarenkov ◽  
Kerstin Johannesson
Keyword(s):  
Reproductive Barrier

scholarly journals FLORAL ISOLATION IS THE MAIN REPRODUCTIVE BARRIER AMONG CLOSELY RELATED SEXUALLY DECEPTIVE ORCHIDS

Evolution ◽  
2011 ◽  
Vol 65 (9) ◽  
pp. 2606-2620 ◽  
Author(s):  
Shuqing Xu ◽  
Philipp M. Schlüter ◽  
Giovanni Scopece ◽  
Hendrik Breitkopf ◽  
Karin Gross ◽  
...  
Keyword(s):  
Reproductive Barrier ◽  
Floral Isolation ◽  
Sexually Deceptive Orchids

Ecogeographic isolation: a reproductive barrier between species and between cytotypes in Houstonia (Rubiaceae)

2011 ◽  
Vol 26 (4) ◽  
pp. 909-926 ◽  
Author(s):  
K. L. Glennon ◽  
L. J. Rissler ◽  
S. A. Church
Keyword(s):  
Reproductive Barrier

Elimination of a Reproductive Barrier Facilitates Intergeneric Hybridization of Sorghum bicolor and Saccharum

Crop Science ◽  
2010 ◽  
Vol 50 (4) ◽  
pp. 1188-1195 ◽  
Author(s):  
George L. Hodnett ◽  
Anna L. Hale ◽  
Dan J. Packer ◽  
David M. Stelly ◽  
Jorge da Silva ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Reproductive Barrier ◽  
Intergeneric Hybridization

Experimental chimaeras—removal of reproductive barrier between sheep and goat

Nature ◽  
1984 ◽  
Vol 307 (5952) ◽  
pp. 637-638 ◽  
Author(s):  
Sabine Meinecke-Tillmann ◽  
B. Meinecke
Keyword(s):  
Reproductive Barrier
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