Cross compatibility between European and American Lupinus species

Williams, Watkin; Akhtar, Masood; Faluyi, M. A.

doi:10.1111/j.1095-8339.1980.tb01675.x

Cited by 11 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In Silene, crossincompatibility may arise in ,7 My (Prentice, 1978;Frajman et al, 2009). In Lupinus, crossing barriers may arise within 6 -10 My of lineage splitting (Williams et al, 1980;Drummond, 2008). There is no reason why different genera or different lineages within genera should be synchronous in this respect.…”

Section: The Persistence Of Cross-incompatibilitymentioning

confidence: 99%

The timetable for allopolyploidy in flowering plants

Levin

2013

Annals of Botany

View full text Add to dashboard Cite

This Viewpoint paper reviews and integrates published information on the crossability of herbaceous species and the fertility of their hybrids in relation to species' divergence times. Despite limitations in methodology and sampling, the estimated times to hybrid sterility are somewhat congruent across disparate lineages. Whereas the waiting time for hybrid sterility is roughly 4-5 million years, the waiting time for cross-incompatibility is roughly 8-10 million years, sometimes considerably more. Strict allopolyploids may be formed in the intervening time window. The progenitors of several allopolyploids diverged between 4 and 6 million years before allopolyploid synthesis, as expected. This is the first study to propose a general temporal framework for strict allopolyploidy. This Viewpoint paper hopefully will stimulate interest in studying the tempo of speciation and the tempo of reproductive isolation in general.

show abstract

Section: The Persistence Of Cross-incompatibilitymentioning

confidence: 99%

The timetable for allopolyploidy in flowering plants

Levin

2013

Annals of Botany

View full text Add to dashboard Cite

show abstract

“…So, crosses between L. luteus and L. hartwegii may help to widen the genepool of L. luteus. Strong incompatibility was to be expected, because interspecific hybridization between all three European cultural species and L. mutahilis, the only large seeded American species, revealed strong pre-and postzygotic isolation mechanisms (WILLIAMS et al 1980).…”

mentioning

confidence: 99%

Histological Observations on Interspecific Crosses in the Genus Lupinus

Busmann‐Loock¹,

Dambroth²,

Menge‐Hartmann³

1992

Plant Breeding

View full text Add to dashboard Cite

The hybridization barriers of interspecific lupin crosses were determined by histological investigations. The cross Lupinus hartwegii x L mutabilis (both of American origin) revealed embryos in the cotyledonary stage as well as cellular endosperm. In the reciprocal combination, L. mutahilis x L. hartwegii, embryo development stopped at the end of the globular stage, and simultaneously the coenocytic endosperm did not differentiate into the cellular state. In the combination L. luteus (European origin) X L. hartwegii, embryo as well as endosperm development were initiated. Embryo development ended at an early globular stage. Twelve days after pollination the coenocytic endosperm had almost degenerated. With L. hartwegii as the female, no pollen germination could be observed.

show abstract

“…L'hybridation de ces deux espèces devrait offrir des perspectives aux sélectionneurs, en permettant soit l'introgression de un ou plusieurs caractères intéressants, soit la création d'une espèce nouvelle. Actuellement l'hybridation de ces deux espèces se heurte à une barrière d'incompatibilité prézygotique quand le parent mâle est L. albus et postzygotique si le parent mâle est L. mutabilis (WILLIAMS et al, 1980). Et dans ce cas, l'arrêt de la croissance embryonnaire semble très précoce.…”

unclassified