Colombia and Venezuela 1992 wild potato (Solanum sect. Petota) germplasm collecting expedition: taxonomy and new germplasm resources

Euphytica ◽  
1995 ◽  
Vol 81 (1) ◽  
pp. 45-56 ◽  
Author(s):  
David M. Spooner ◽  
Ra�l Castillo T. ◽  
Luis L�pez J. ◽  
Ram�n Pineda ◽  
Ra�l Le�n P. ◽  
...  

2000 ◽  
Vol 77 (4) ◽  
pp. 261-270 ◽  
Author(s):  
David M. Spooner ◽  
Antonio Rivera-Peña ◽  
Ronald G. van den Berg ◽  
Konrad Schüler


Euphytica ◽  
1992 ◽  
Vol 60 (3) ◽  
pp. 159-169
Author(s):  
David M. Spooner ◽  
Raúl T. Castillo ◽  
Luis J. López


1995 ◽  
Vol 38 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Aaron Rodriguez ◽  
Ofelia Vargas ◽  
Eduardo Villegas ◽  
David M. Spooner


Euphytica ◽  
1994 ◽  
Vol 79 (1-2) ◽  
pp. 137-148 ◽  
Author(s):  
David M. Spooner ◽  
Ronald G. van den Berg ◽  
Willman García ◽  
María Luisa Ugarte


1993 ◽  
Vol 36 (4) ◽  
pp. 309-316 ◽  
Author(s):  
Andres Contreras ◽  
Luigi Ciampi ◽  
Stefano Padulosi ◽  
David M. Spooner


2008 ◽  
Vol 33 (3) ◽  
pp. 566-578 ◽  
Author(s):  
Mercedes Ames ◽  
Alberto Salas ◽  
David M. Spooner

There are about 190 wild potato (Solanum L. section Petota Dumort.) species distributed from the southwestern United States to central Argentina and adjacent Chile and Uruguay. The morphological similarity of many of its constituent species has led to widely conflicting taxonomic treatments. Solanum series Piurana Hawkes is one of 21 series recognized in section Petota in the latest comprehensive taxonomic treatment by Hawkes in 1990. They are distributed from southern Colombia, south through Ecuador to central Peru. The limits of the series and validity of its constituent species are unresolved. We provide the first comprehensive morphological phenetic study of the series, to include putatively related species in ser. Conicibaccata, Cuneoalata, Ingifolia, Megistacroloba, Simplicissima, Tuberosa, and Yungasensa, through an examination 188 living germplasm accessions of 33 species, planted in replicated plots in a field station in Andean Peru. Only four morphologically well-defined groups were supported. Continuing work is exploring molecular support for these species in these eight series.



1991 ◽  
Vol 68 (1) ◽  
pp. 29-43 ◽  
Author(s):  
David M. Spooner ◽  
John Bamberg ◽  
J. Peter Hjerting ◽  
José Gómez


Horticulturae ◽  
2021 ◽  
Vol 7 (7) ◽  
pp. 193
Author(s):  
Lili Wan ◽  
Zhuanrong Wang ◽  
Mi Tang ◽  
Dengfeng Hong ◽  
Yuhong Sun ◽  
...  

Fruit and vegetable crops are rich in dietary fibre, vitamins and minerals, which are vital to human health. However, many biotic stressors (such as pests and diseases) and abiotic stressors threaten crop growth, quality, and yield. Traditional breeding strategies for improving crop traits include a series of backcrosses and selection to introduce beneficial traits into fine germplasm, this process is slow and resource-intensive. The new breeding technique known as clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein-9 (Cas9) has the potential to improve many traits rapidly and accurately, such as yield, quality, disease resistance, abiotic stress tolerance, and nutritional aspects in crops. Because of its simple operation and high mutation efficiency, this system has been applied to obtain new germplasm resources via gene-directed mutation. With the availability of whole-genome sequencing data, and information about gene function for important traits, CRISPR-Cas9 editing to precisely mutate key genes can rapidly generate new germplasm resources for the improvement of important agronomic traits. In this review, we explore this technology and its application in fruit and vegetable crops. We address the challenges, existing variants and the associated regulatory framework, and consider future applications.



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