Evolution of the Symbiosis-Specific GRAS Regulatory Network in Bryophytes

Arbuscular mycorrhiza is one of the most common plant symbiotic interactions observed today. Due to their nearly ubiquitous occurrence and their beneficial impact on both partners it was suggested that this mutualistic interaction was crucial for plants to colonize the terrestrial habitat approximately 500 Ma ago. On the plant side the association is established via the common symbiotic pathway (CSP). This pathway allows the recognition of the fungal symbiotic partner, subsequent signaling to the nucleus, and initiation of the symbiotic program with respect to specific gene expression and cellular re-organization. The downstream part of the CSP is a regulatory network that coordinates the transcription of genes necessary to establish the symbiosis, comprising multiple GRAS transcription factors (TFs). These regulate their own expression as an intricate transcriptional network. Deduced from non-host genome data the loss of genes encoding CSP components coincides with the loss of the interaction itself. Here, we analyzed bryophyte species with special emphasis on the moss Physcomitrella patens, supposed to be a non-host, for the composition of the GRAS regulatory network components. We show lineage specific losses and expansions of several of these factors in bryophytes, potentially coinciding with the proposed host/non-host status of the lineages. We evaluate losses and expansions and infer clade-specific evolution of GRAS TFs

HAG1 and SWI3A/B control of male germ line development in P. patens suggests conservation of epigenetic reproductive control across land plants

Bryophytes as models to study the male germ line: loss-of-function mutants of epigenetic regulators HAG1 and SWI3a/b demonstrate conserved function in sexual reproduction

An integrative approach to more nuanced estimates of personality–job–performance relations

This is the final version. Available on open access from Wiley via the DOI in this recordData availability statement: The data that support the findings of this study are openly available on OSF at https://osf.io/ys72j/?view_only=f48aeaf9414d46fb81019186030afbdcRecent research has suggested that self- and other-ratings of personality may provide different information about personality, which can be captured in the trait–reputation–identity (TRI) model. Based on the TRI model, we investigate the link between personality and aligned job performance criteria on domain and aspect levels of the Big Five personality traits. In five samples (overall N = 571 triplets of target self-ratings and two coworker other-ratings), we investigated the relationships between the shared information on personality and shared information about job performance. We found that all personality domains showed substantial criterion validity in predicting the corresponding job-performance dimensions. Furthermore, we found stronger estimates for aspects of agreeableness and openness. We discuss theoretical and practical implications for target replacement and performance management

HAG1 and SWI3A/B control of male germ line development in P. patens suggests conservation of epigenetic reproductive control across land plants

Peer reviewe

Machiavellian Leader Effectiveness: the Moderating Role of Political Skill

Research on the effectiveness of Machiavellian leaders has found contradictory results. By linking socioanalytic and trait activation theory to the Machiavellianism and leadership literature, we argue that political skill may explain these findings by moderating the relation between Machiavellianism and leadership effectiveness. Using a multisource design and moderated mediation analyses with 153 leaders, 287 subordinates, and 153 superiors, we show that leaders who are both strongly politically skilled and high on Machiavellianism successfully enact transformational leadership, mediating improved leader effectiveness. However, when leader political skill is low, high Machiavellianism is negatively associated with (subordinate-rated) transformational leadership, resulting in lower leader effectiveness ratings by superiors. We discuss these results in light of current research on Machiavellianism in leadership and work contexts

Fearless dominance and leader effectiveness: A chance for excellency in leadership

We tested whether the fearless dominance trait, which originated in the psychopathy literature and is typically presumed to relate to non-adaptive behaviors, also can lead to successful leader behaviors. According to Lykken\u27s argument on fearlessness in psychopathy, the direction of the career path of individuals high on fearless dominance is mainly influenced by their level of pre-vocational socialization, and prior research has found encouraging results for this view. Our goal was to test this hypothesis specifically in the leadership context. By connecting Lykken\u27s fearlessness argument to a recent process model of leadership by Zaccaro and colleagues, we suggest that fearless dominance and successful pre-vocational socialization (i.e., greater education) influence leadership outcomes via political skill. Our sample comprises 239 leaders, their superiors (N = 239), and a total of 457 subordinates. Using moderated mediation analyses, we show that leaders high on both fearless dominance and educational level possessed greater political skill at work, mediating improved job performance, transformational leader behavior, and team performance. However, for low educational level, this mediated relation is negative. We review our findings regarding Lykken\u27s argument of successful fearlessness and provide an outlook for future research

p-Curve Disclosure Table from Does it actually feel right? A replication attempt of the rounded price effect

Details on the selection of relevant test statistics from the original study for p-curve analysis