The evaluation of potato germplasm for resistance to potato tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae), is a valuable component of integrated pest management; however, few attempts have been made to identify natural genetic tuber resistance to tuberworm on potato germplasm. The objective of this study was to screen potato germplasm with potential tuberworm resistance...

— In contrast to a perception that ex situ collections of germplasm are rarely used, this empirical case study reveals large numbers of germplasm samples distributed by the US National Germplasm System to many types of scientific institutions located in numerous countries around the world. Germplasm distributions outside the United States favor developing over developed countries in several way...

length to width) to indicate leaflet shape. He also defined leaflet shape index at 2.6 to differentiate between Two gene pairs are known to affect leaflet shape in soybean [Glybroad and narrow leaflet shape in Japanese cultivars cine max (L.) Merr.], but only two categories of leaflet shape are routinely used to characterize soybean germplasm. Very little informaand found that broad leaflet is ...

The origin and domestication of rice has been a subject of considerable debate in the post-genomic era. Rice varieties have been categorized based on isozyme and DNA markers into two broad cultivar groups, Indica and Japonica. Among other well-known cultivar groups Aus varieties are closer to Indica and Aromatic varieties including Basmati are closer to Japonica, while deep-water rice varieties...

Capsicum chinense and C. frutescens peppers are part of the Brazilian biodiversity, and the Amazon basin is the area of greatest diversity for them, especially for that former species. Nevertheless, little is known about their evolutionary history. Aiming to identify genotypes with wild and domesticated characteristics, 30 accessions of the germplasm bank of Embrapa were characterized using mor...

Tibetan annual wild barley is rich in genetic variation. This study was aimed at the exploitation of new SSRs for the genetic diversity and phylogenetic analysis of wild barley by data mining. We developed 49 novel EST-SSRs and confirmed 20 genomic SSRs for 80 Tibetan annual wild barley and 16 cultivated barley accessions. A total of 213 alleles were generated from 69 loci with an average of 3....

Rice (Oryza sativa L.) is one of the most important crops in the world (Elert, 2014). However, rice grain production can be affected by nutritional status, depending on the cultivationmethod and soil type: high levels of metals such as aluminum (Al) and iron (Fe) decrease plant growth and yield, especially in acidic soils (Ricachenevsky et al., 2010; Kochian et al., 2015), while low nutrient us...

Abstract Soybean is a nitrogen fixer. Also it model plant for the study of biological fixation (BNF). Soybeans produce more protein and vegetable oil per acre than they do. Over 5000 years, China has been centre global soybean production. The Chinese Academy Agriculture Sciences (CAAS) institute crop germplasm resources national gene bank called National Gene Bank (NGB) that made up nearly 24,0...

Sequence variation was sampled in cultivated and related wild forms of tomato at fw2.2--a fruit weight QTL key to the evolution of domesticated tomatoes. Variation at fw2.2 was contrasted with variation at four other loci not involved in fruit weight determination. Several conclusions could be reached: (1) Fruit weight variation attributable to fw2.2 is not caused by variation in the FW2.2 prot...