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Genetic mapping and identification of QTL for earliness in the globe artichoke/cultivated cardoon complex

Portis, Ezio; Scaglione, Davide; Acquadro, Alberto; Mauromicale, Giovanni; Mauro, Rosario; Knapp, Steven J; Lanteri, Sergio (2012-05-23)

AbstractBackgroundThe Asteraceae species Cynara cardunculus (2n = 2x = 34) includes the two fully cross-compatible domesticated taxa globe artichoke (var. scolymus L.) and cultivated cardoon (var. ...

QTL mapping reveals the genetic architecture of loci affecting pre- and post-zygotic isolating barriers in Louisiana Iris

Ballerini, Evangeline S; Brothers, Amanda N; Tang, Shunxue; Knapp, Steven J; Bouck, Amy; Taylor, Sunni J; Arnold, Michael L; Martin, Noland H (2012-06-15)

Abstract Background Hybridization among Louisiana Irises has been well established and the genetic architecture of reproductive isolation is known to affect the potential for and the directionality ...

Association mapping in sunflower (Helianthus annuus L.) reveals independent control of apical vs. basal branching

Nambeesan, Savithri U; Mandel, Jennifer R; Bowers, John E; Marek, Laura F; Ebert, Daniel; Corbi, Jonathan; Rieseberg, Loren H; Knapp, Steven J; Burke, John M (2015-03-11)

Abstract Background Shoot branching is an important determinant of plant architecture and influences various aspects of growth and development. Selection on branching has also ...

RAD tag sequencing as a source of SNP markers in Cynara cardunculus L.

Scaglione, Davide; Acquadro, Alberto; Portis, Ezio; Tirone, Matteo; Knapp, Steven J; Lanteri, Sergio (2012-01-03)

Abstract Background The globe artichoke (Cynara cardunculus L. var. scolymus) genome is relatively poorly explored, especially compared to those of the other major Asteraceae crops sunflower and lettuce. No SNP markers ...

A high-density genetic map of Arachis duranensis, a diploid ancestor of cultivated peanut

Nagy, Ervin D; Guo, Yufang; Tang, Shunxue; Bowers, John E; Okashah, Rebecca A; Taylor, Christopher A; Zhang, Dong; Khanal, Sameer; Heesacker, Adam F; Khalilian, Nelly; Farmer, Andrew D; Carrasquilla-Garcia, Noelia; Penmetsa, R Varma; Cook, Douglas; Stalker, H Thomas; Nielsen, Niels; Ozias-Akins, Peggy; Knapp, Steven J (2012-09-11)

Abstract Background Cultivated peanut (Arachis hypogaea) is an allotetraploid species whose ancestral genomes are most likely derived from the A-genome species, A. duranensis, and the B-genome ...

BSTA: a targeted approach combines bulked segregant analysis with next- generation sequencing and de novo transcriptome assembly for SNP discovery in sunflower

Livaja, Maren; Wang, Yu; Wieckhorst, Silke; Haseneyer, Grit; Seidel, Michael; Hahn, Volker; Knapp, Steven J; Taudien, Stefan; Schön, Chris-Carolin; Bauer, Eva (2013-09-17)

Abstract Background Sunflower belongs to the largest plant family on earth, the genomically poorly explored Compositae. Downy mildew Plasmopara halstedii (Farlow) Berlese & de Toni is one of ...

Transmission ratio distortion results in asymmetric introgression in Louisiana Iris

Tang, Shunxue; Okashah, Rebecca A; Knapp, Steven J; Arnold, Michael L; Martin, Noland H (2010-03-18)

Abstract Background Linkage maps are useful tools for examining both the genetic architecture of quantitative traits and the evolution of reproductive incompatibilities. We describe the generation of two genetic maps ...

Comparative mapping in intraspecific populations uncovers a high degree of macrosynteny between A - and B - genome diploid species of peanut

Guo, Yufang; Khanal, Sameer; Tang, Shunxue; Bowers, John E; Heesacker, Adam F; Khalilian, Nelly; Nagy, Ervin D; Zhang, Dong; Taylor, Christopher A; Stalker, H Thomas; Ozias-Akins, Peggy; Knapp, Steven J (2012-11-10)

Abstract Background Cultivated peanut or groundnut (Arachis hypogaea L.) is an important oilseed crop with an allotetraploid genome (AABB, 2n = 4x = 40). Both the ...