5'-Methylthioadenosine (MTA) is the common by-product of polyamine (PA), nicotianamine (NA), and ethylene biosynthesis in Arabidopsis (Arabidopsis thaliana). The methylthiol moiety of MTA is salvaged by 5'-methylthioadenosine nucleosidase (MTN) in a reaction producing methylthioribose (MTR) and adenine. The MTN double mutant, mtn1-1mtn2-1, retains approximately 14% of the MTN enzyme activity pr...

Records of AI-sired cows born between 1978 and 1982 were used to form two composite production and reproduction data sets. First (second) consisted of 35,568 (26,443) first lactations of daughters of 270 (237) sires. Traits were FCM, heifer, and first parity nonreturn rates, days between calving and first insemination, and days open, with means 5075 (5280) kg, .62 (.62), .44 (.49), 81 (81) d an...

Is it possible to generalize relationships between certain plant traits and soil fertility? In particular, are there quantitative community-weighted mean (CWM) trait values of leaf dry-matter content (LDMC), specific area (SLA), height, Grime’s competitor-stress tolerator-ruderal (CSR) strategy scores the generalized fertility, FG (i.e., capacity a produce biomass when all nonsoil variables hel...

The existence of interindividual differences in personality traits poses a challenge to evolutionary thinking. Although research on the ultimate consequences of personality differences in nonhuman animals has recently undergone a surge of interest, our understanding of whether and how personality influences reproductive decisions in humans has remained limited and informed primarily by modern s...

Body condition score has been proposed as an additional trait in New Zealand’s national breeding objective. To be considered for inclusion, genetic parameters and an economic value are required. We propose genetic evaluation of body condition score using a random regression model that includes 2 order orthogonal Legendre polynomials fitted to the genetic variance and a link function to account ...