Isolation and Identification of SA and JA Inducible Protein Kinase Gene OsSJMK1 in Rice

Family hardiness among primary caregivers of breast cancer patients in Hunan Province: a cross-sectional study exploring the relationship with attachment and caregiver preparedness

Background

Family hardiness is a key variable contributing to positive family functioning, which has significant effects on the quality of life and the mental health of patientsand caregivers. The factors that contribute to family hardiness support both the psychological and physical well-being of caregivers is unknown. More specifically, the relationship of family hardiness with attachment and caregiver preparedness has not been explored.

Aim

The current study aimed to investigate the family hardiness in caregivers of breast cancer patients and explore the relationship with attachment and caregiver preparedness and identify the associated factors.

Methods

This cross-sectional correlational study was conducted from March to July, 2022. 140 caregivers of breast cancer patients were recruited in two IIIA-grade hospitals in Hunan Province using convenience sampling. Data were collected using a personal characteristics questionnaire, The Family Hardiness Index (FHI), Caregiver Preparedness Scale (CPS), and the Experiences in Close Relationships Inventory-Revised Edition (ECR-R). Chi-square, Pearson's correlation coefficient, generalized additive model and multiple logistic regression analyses were performed.

Results

A total of 140 caregivers participated in the study. The mean age of participants was (42.29 ± 14.54) years and most of them were male (57.1%). The mean FHI score of caregivers was 58.11 ± 5.67. Multiple linear regression analysis indicated that family hardiness is affected by ECR-R, CPS, education level, and knowledge of breast cancer. The score of CPS was positively associated with family hardiness (β = 0.265, p < 0.001), whereas ECR-R negatively predicted family hardiness (β = -0.078, p < 0.001).

Conclusion

Family hardiness plays a critical role in helping caregivers manage the stresses associated with providing care to breast cancer patients. Enhancing caregiver preparedness and education, as well as addressing attachment-related issues, can significantly improve family hardiness. In light of our findings, we suggest that closer relationships within families, adding preparedness and knowledge of disease should be encouraged during the care of breast cancer patients.

Adult attachment and dehumanization among Chinese college students: trait attachment and state attachment perspectives

Introduction

Current social issues such as bullying, online violence, and local conflicts are all prominent topics in the field of psychology and linked to dehumanization. However, research on dehumanization from a non-Western background has been rare. As a key factor influencing individual behavior, attachment has not been sufficiently integrated into studies on dehumanization. Therefore, this study provides empirical evidence to explore the relationship between adult attachment (both trait and state) and dehumanization. The sample consisted of college students from China.

Methods

In Study 1 (N = 705) latent profile analysis was employed to exploring the potential categories of trait adult attachment in China, and to investigate how these categories impact dehumanization. Study 2 (N = 281) focused on activating secure attachment and examined the effects of three state attachment types, security, avoidance and anxiety, on dehumanization.

Results

Study 1 identified four types of adult attachment: preoccupied, secure, fearful, and dismissing, and revealed that these different attachment types have varying impacts on dehumanization. Study 2 showed that both security and avoidance predict dehumanization.

Discussion

This research established a link between adult attachment and dehumanization, offering new insights into the psychological mechanisms underlying dehumanization and suggesting novel strategies for its prevention and intervention.

Effects of Social Support Provided by Disabled Older Adults to Others on Their Own Depressive Symptoms: A Moderated Mediation Model

Purpose

While previous studies have extensively examined the impact of receiving positive social support during social support interactions on depressive symptoms among older adults, adverse effects experienced, such as being rejected or ignored, are often overlooked. Moreover, there has been limited discussion on the effects of giving social support to others. Thus, this study investigates the impacts of social support given by disabled older adults to others on their own depressive symptoms, as well as the mediating role of receiving social support (both positive and negative aspects) and the moderating effect of the activity of daily living (ADL).

Patients and Methods

This cross-sectional, community-based study was conducted in Wenzhou and Jiaxing City, China, from September 2021 to September 2022, with a total of 255 disabled older adults meeting the inclusion and exclusion criteria. The data were collected face-to-face using a structured questionnaire. The participants were asked to complete the Barthel Index Scale, the Chinese version of the Positive and Negative Social Exchange Scale, the Giving Social Support questionnaire, and the Short Form Chinese Geriatric Depression Scale to measure disability, receiving positive and negative social support, giving social support, and depressive symptoms, respectively. Descriptive statistical analysis, correlation analysis, mediation effect tests, and moderation effect tests were used to analyse the questionnaire data.

Results

The social support provided by disabled older adults to others primarily involved companionship and care. The positive aspect of social support received was largely emotional support, while the negative aspect was mainly characterised by failure to obtain help and unsympathetic behaviour. Providing social support was found to be associated with a potential beneficial effect on depressive symptoms, linked to lower severity, with this effect fully mediated by receiving social support. Specifically, receiving emotional support accounted for 56.63% of the effect size, while failure to obtain help and unsympathetic behaviour contributed 21.55%, and rejection and neglect collectively accounted for 21.83%. Additionally, the effect was partially moderated by ADL, with older adults exhibiting lower ADL scores showing a greater benefit from both giving and receiving social support compared to those with higher ADL scores.

Conclusion

It is imperative to recognise and encourage disabled older adults to provide social support to others, especially emotional support, while reducing negative feedback, such as neglect and unnecessary blame. This could alleviate their depressive symptoms and promote psycho-social well-being.

Correlates of residents' enrolment intention toward inclusive commercial health insurance in China: involvement, perceived benefit, perceived sacrifice, and government participation

Background

As an application of inclusive finance in health insurance, inclusive commercial health insurance (ICHI) is a new public-private partnership-based health insurance scheme and has been vigorously promoted by the Chinese government in recent years to develop China Multi-level Health Insurance System, a system that aims to seek a mix of public and private sources to provide more affordable financial protection to all levels of society in line with their needs. However, the overall enrolment of ICHI scheme is still at a low level, and little is known about what influences residents' enrolment intentions. The aim of this study was to examine the multidimensional factors influencing residents' behavioral intentions and to develop a multivariate conceptual model to explore the psychographic process in the formation of enrolment intention.

Methods

The empirical data used for model validation were obtained from a cross-sectional study conducted in Nanjing, China, a representative pilot city of ICHI scheme in 2022. Exploratory factor analysis, ANOVA, standard multiple regression, and hierarchical multiple regression were mainly employed for hypothesis testing.

Results

The findings revealed that involvement, perceived benefit, and perceived sacrifice are all crucial psychographic process factors in the formation of residents' enrolment intentions. Government participation positively moderates the influence path of "perceived benefit-enrolment intention" but negatively moderates the path of "perceived sacrifice-enrolment intention". Moreover, it was discovered that perceived benefit mediates the effect of involvement on enrolment intention, while perceived sacrifice does not.

Conclusions

Improving residents' perceived benefit and involvement degree of the product, as well as reducing their perceived sacrifice, are both key to increasing their enrolment intentions. This study also points out that one of the main dilemmas in the current development of ICHI scheme is the low level of involvement among residents, and that optimizing the product design to make it more relevant to residents' lives is a more beneficial strategy to increase overall involvement.

The effect of smartphone dependence on learning burnout among undergraduates: the mediating effect of academic adaptability and the moderating effect of self-efficacy

Introduction

Smartphone dependence is closely related to the physical and mental health development of undergraduates and their learning. The purpose of this study was to explore the relationship between smartphone dependence, academic adaptability, self-efficacy and learning burnout among undergraduates and its underlying mechanisms.

Methods

The study was conducted on 2,110 undergraduates using the Smartphone Dependence Scale, the Undergraduates Learning Adjustment Scale, the Learning Burnout Undergraduates Scale and the Self-Efficacy Scale to develop a mediation model and a moderation model.

Results

The findings of this study revealed that (1) smartphone dependence significantly negatively predicted academic adaptability; (2) academic adaptability significantly negatively predicted learning burnout; (3) smartphone dependence significantly positively predicted learning burnout; (4) academic adaptability partially mediated the effect of smartphone dependence on learning burnout; (5) self-efficacy played a moderating role in the effect of academic adaptability on learning burnout.

Conclusion

These findings can help researchers and educators better understand the underlying mechanisms between smartphone dependence and learning burnout in undergraduates.

Maternal adult attachment and mother-adolescent attachment: the chain mediating role of marital satisfaction and harsh parenting

This study explored the relationship between maternal adult attachment and mother-adolescent attachment based on the attachment theory and spillover hypothesis of family systems theory. A survey research was conducted on 992 mothers and adolescents using a convenience sampling method. A survey research was conducted on 992 Chinese mothers and adolescents using a convenience sampling method. The results indicated that (1) maternal adult attachment avoidance and anxiety were significantly negatively related to maternal marital satisfaction and mother-adolescent attachment, and significantly positively related to maternal harsh parenting; maternal adult attachment anxiety was a significant direct predictor of mother-adolescent attachment; (2) Maternal marital satisfaction and maternal harsh parenting mediated the significant effect between maternal adult attachment and mother-adolescent attachment, specifically pathways contained three: a separate mediating effect of maternal marital satisfaction, a separate mediating effect of maternal harsh parenting, and a chain mediating effect of maternal marital satisfaction and maternal harsh parenting. The findings suggest that maternal adult attachment, marital satisfaction, and harsh parenting behaviors can have significant effects on adolescents' mother-adolescent attachment.

Negative parenting styles and social adjustment of university students: a moderated chain mediation model

This study aimed to explore the relationship between parenting styles and the social adjustment of university students as well as the mediating effects of attachment avoidance and friendship quality. We further examined the moderating role of gender. This study used convenience sampling to recruit 501 Chinese university students to complete the Chinese version of the Negative Parenting subscale of EMBU, Attachment Avoidance Scale, Friendship Quality Questionnaire, and Social Adjustment Scale. SPSS 24.0 and the Process 3.5 macro program were used to carry out descriptive statistical and correlation analyses and mediating effect and moderated chain-mediating effect tests on the data. The analyses revealed that negative parenting styles significantly negatively predicted social adjustment in university students. Attachment avoidance mediated the relationship between negative parenting styles and social adjustment in university students, and friendship quality mediated the relationship between negative parenting styles and social adjustment in university students. Attachment avoidance and friendship quality played a chain-mediating role in the relationship between negative parenting styles and university students' social adjustment. Gender moderated the effect of negative parenting style on friendship quality among university students. These results show how negative parenting styles affect college students' social adjustment and its underlying mechanisms in the context of China's collectivist culture and high power distance and further reveal the gender differences involved, providing insights to better understand the factors influencing college students' social adjustment.

The effects of adolescent physical activity participation on cell phone dependence: The mediating role of self-control

BACKGROUND: The rapid development of science and technology and the swift improvement of people’s material living standards enabled smartphones to be indispensable of people’s daily lives. OBJECTIVE: The purpose of this paper was to examine the influence of self-control in adolescents’ participation in physical activity on cell phone dependence. METHODS: The Physical Activity Rating Scale (PARS-3), the Self-Control Scale, and the Cell Phone Dependence Scale were used to measure the influence of self-control in adolescents’ participation in physical activity on cell phone dependence among 649 adolescents. RESULTS: The results show: (1) There were significant differences (p < 0.01) in the physical activity levels of adolescents under different gender, birthplace, and education background. (2) Each dimensional variable of physical activity was negatively correlated with the cell phone dependence variable, and positively correlated with each variable of self-control, and the self-control variables were negatively correlated with cell phone dependence. (3) Self-control was partially mediating the effects of physical activity on cell phone dependence, with the mediating effect accounting for 39.68%. CONCLUSIONS: Adolescents’ participation in physical exercise activities will improve self-control and ultimately reduce cell phone dependence. Curbing the negative and malignant events of cell phone addiction among adolescents, timely investigation of mobile phone and Internet addiction, pathological formation mechanisms and intervention measures are important measures to reshape the healthy lifestyle of adolescents and have great practical significance for the prosperity and development of families, society, nation and country.

Mechanism of Negative Emotions of the Elderly in Normalization Period of COVID-19: A Mediated Mediation Model

To explore the mechanism of negative emotions of the elderly in normalization period of COVID-19. The self-rating Depression Anxiety Stress Scale, epidemic attention scale, subjective economic status scale and physical health perception scale were used to investigate 318 elderly people in 2021. There were significant differences in negative emotions among the elderly in Henan in China with different gender, education background, medical insurance and whether they contacted suspected cases (all P < 0.05), but there was no significant difference on religious belief (P > 0.05); Attention to epidemic information was positively correlated with negative emotion (r = 0.492, P < 0.01), and negatively correlated with subjective economic status (r = -0.138, P < 0.05); Negative emotions were negatively correlated with subjective economic status (r = -0.455, P < 0.01) and health perception (r = -0.277, P < 0.01); health perception was no significant correlation with epidemic attention(r = -0.047, P > 0.05) and subjective economic status (r = -0.033, P > 0.05). Bootstrap test found that epidemic attention can significantly predict negative emotion of the elderly (β = 0.492, P < 0.001), subjective economic status played a partial mediating role between epidemic attention and negative emotions (β = 0.438, -0.395, P < 0.001), and health perception moderated the first half of the mediating path (β = 0.403, P < 0.001, 95% CI = [0.286~0.521]). Epidemic attention has a significant positive impact on the negative emotions of the elderly in Henan during normalization period of COVID-19, and it has effect indirectly through subjective economic status; health perception plays a moderator role in the impact of epidemic attention on subjective economic status.

The Promotion of Creativity of Vocational College Students: The Role of Parent-Child Relationship, Emotional Intelligence, and Grit

Objective: To examine whether emotional intelligence played a mediation role in the association between parent-child relationship and vocational college student’s creativity, and whether grit moderated this mediating process.

Methods: 663 vocational college students participated in this study and completed four questionnaires at three time points, which included measures of parent-child relationship, creativity, emotional intelligence, and grit.

Results: (1) Emotional intelligence mediated the relationship between parent-child relationship and vocational college student’s creativity; (2) grit moderated the mediating role of emotional intelligence between parent-child relationship and vocational college student’s creativity.

Conclusion: Parent-child relationship had both direct effects on vocational college student’s creativity and indirect effects through emotional intelligence. Grit moderates the effect of emotional intelligence on vocational college student’s creativity.

A novel ATPase gene, Ab-atps, plays an important role in the interaction of rice and white tip nematode, Aphelenchoides besseyi

Plant kinases containing the LysM domain play important roles in pathogen recognition and self-defense reactions. And it could recognize microbe-associated molecules including chitin and other polypeptides. The white tip nematode Aphelenchoides besseyi is a migratory parasitic nematode that infects plant shoots. It is distributed over almost all rice-producing areas and causes up to 50% economic losses. The rice OsRLK3 gene was a defense-related LysM kinase gene of rice. This study showed that the rice LysM kinase OsRLK3 could be induced by flg22, jasmonic acid, salicylic acid, and chitin. An interaction gene, Ab-atps from A. besseyi, was identified by screening the interaction between the rice gene OsRLK3 and an A. besseyi cDNA library using yeast two-hybrid screening. Ab-atps is a novel ATP synthase gene with a full length of 1341 bp, coding for 183 amino acids. The mRNA of Ab-atps was located in the esophagus and reproductive system of A. besseyi. The expression of Ab-atps was assessed at different developmental stages of the nematode and found to be the highest in the juvenile, followed by the egg, female, and male. Reproduction was significantly decreased in nematodes treated with Ab-atps double-stranded RNA (dsRNA) (p < 0.05). Transient expression experiments showed that Ab-ATPS-GFP was distributed in the nucleus, cytoplasm, and cell membrane, and Ab-ATPS-GFP triggered plant cell death. OsRLK3 was expressed significantly higher at 0.5 day and 1 day (p < 0.05) in rice plants inoculated with nematodes treated with Ab-atps dsRNA and gfp dsRNA for 0.5-7 days, respectively. Further, OsRLK3 expression under Ab-atps dsRNA treatment was significantly lower than with gfp dsRNA treatment at 0.5 day (p < 0.05) and significantly higher than with gfp dsRNA treatment at 1 day (p < 0.05). These results suggest that rice OsRLK3 could interact with A. besseyi Ab-atps, which plays an important role in growth, reproduction, and infection of the nematode. Our findings provide a theoretical basis to further understand the parasitic strategy of A. besseyi and its interaction mechanism with host plants, suggesting new ideas and targets for controlling A. besseyi.

Personality and Developmental Characteristics of Primary School Students Personality Types

The aim of the current study was to investigate the personality characteristics and developmental characteristics of primary school students' personality types in a cross-sectional sample of 10,366 Chinese children. The Personality Inventory for Primary School Student was used to evaluate primary school students' personality. Latent profile analysis (LPA) was used to classify primary school students' personality types. One-way ANOVA was used to explore the personality characteristics of personality types, and Chi-square tests were used to investigate grade and gender differences of primary school students' personality types. Results showed that the primary school students could be divided into three personality types: the resilient, the overcontrolled, and the undercontrolled. Resilients had the highest scores, and undercontrollers had the lowest scores on all of five personality dimensions (intelligence, conscientiousness, extraversion, agreeableness, and emotional stability). The overcontrollers' scores on personality were between the other two types, with lower emotional stability. As the grade level increased, the proportion of undercontrolled students in primary schools generally showed an upward trend and reached the maximum in grade 5. The proportion of resilient students in primary schools generally showed a downward trend. The proportion of resilient students was highest in grade 2 and lowest in grade 5. Girls were significantly more likely than boys to be resilient personality types, while boys were significantly more likely than girls to be undercontrolled personality types. The overcontrolled personality type did not show significant gender differences. Because of the undesirable internalizing problems related to overcontrollers and the externalizing problems related to undercontrollers, our results have implications for Chinese schools, families, and society in general.

The Predictive Effect of Parental Adult Attachment on Parent-Adolescent Attachment: The Mediating Role of Harsh Parenting

This study examines the relationship between parental adult attachment and parent–adolescent attachment and investigates the mediating role of harsh parenting from the perspective of family systems theory. The sample included adolescents and their parents from 1,030 families in Henan Province, China. Measures included the Experiences in Close Relationships Scale, Inventory of Parent and Peer Attachment Scale, and Harsh Parenting Scale. The results showed that paternal avoidance negatively predicts father–adolescent and mother–adolescent attachments, while maternal avoidance and maternal anxiety negatively predict father–adolescent attachment and mother–adolescent attachment, respectively. Paternal harsh parenting not only mediated the relationship between paternal adult and father–adolescent attachment but also between paternal adult and mother–adolescent attachment. However, maternal harsh parenting only plays an intermediary role between maternal adult and mother–adolescent attachment. The results of the study show that compared with the adverse effects of maternal adult attachment and maternal harsh parenting on parent–adolescent attachment, paternal avoidance and paternal harsh parenting more negatively affect parent–adolescent attachment, which is not conducive to familial harmony.

Which cognitive individual differences predict good Bayesian reasoning? Concurrent comparisons of underlying abilities

We know a lot about how to present Bayesian reasoning tasks in order to aid performance, but less about underlying individual differences that can account for interindividual variability on the same tasks. Such information would be useful for both theoretical and practical reasons. Two theoretical positions, ecological rationality and nested set views, generate multiple hypotheses about which individual difference traits should be most relevant as underlying Bayesian reasoning performance. However, because many of these traits are somewhat overlapping, testing variables in isolation can yield misleading results. The present research assesses Bayesian reasoning abilities in conjunction with multiple individual different measures. Across three experiments, Bayesian reasoning was best predicted by measures of numerical literacy and visuospatial ability, as opposed to several different measures of cognitive thinking dispositions/styles, ability to conceptually model set-theoretic relationships, or cognitive processing ability (working memory span). These results support an ecological rationality view of Bayesian reasoning, rather than nested sets views. There also was some predictive ability for the Cognitive Reflection Task, which was only partially due to the numeracy aspects of that instrument, and further work is needed to clarify if this is a distinct factor. We are now beginning to understand not only how to build Bayesian reasoning tasks, but also how to build good Bayesian reasoners.

A Qualitative Exploration of Chinese Self-Love

Although self-love is an important topic, it has not been viewed as appropriate for psychological research, especially in China. We conducted two studies to understand how Chinese people view self-love. In the first study, we surveyed 109 Chinese people about the dimensions of self-love using an open-ended questionnaire. In the second study, 18 participants were selected by means of intensity sampling and interviewed about the connotations and structure of Chinese self-love. The two studies revealed three important aspects of the Chinese understanding of self-love: (1) self-love has four dimensions: self, family, others, and society; (2) it comprises five components: self-cherishing, self-acceptance, self-restraint, self-responsibility, and self-persistence; and (3) the five components of self-love are linked together to form a stable personality structure. The reliability and validity of the two studies were strong. Finally, the results showed that Chinese self-love is dominated by Confucian culture, which provides guiding principles for how to be human. At the same time, it shows that there are differences in the understanding of self-love between Chinese and Western cultures, which provides an empirical basis for further research based on cross-cultural psychology and self-love psychology.

The Effects of Working Memory and Probability Format on Bayesian Reasoning

Bayesian reasoning is common and critical in everyday life while the performance on Bayesian reasoning is rather poor. Previous studies showed that people could enhance their performance by applying cognitive resources under the natural frequency format condition. Working memory is one of the crucial cognitive resources in the reasoning process. However, the role of working memory on Bayesian reasoning remains unclear. In our study, we verified the effect of working memory on Bayesian reasoning by evaluating the performance of participants with high and low working memory span (WMS); we also investigated if working memory as a kind of cognitive resource can affect Bayesian reasoning performance by manipulating the cognitive load in a dual-task paradigm among participants with no-, low-, and high-loads. We found the following: (1) The Bayesian reasoning performance of high WMS participants was significantly higher than that of low WMS participants. (2) Performance under natural frequency condition was noticeably higher than that in standard probability condition. (3) Interaction between working memory and probability format was significant, and the performance of participants with high-load in natural frequency condition was higher when compared to those of participants with no- and low-load. Therefore, we can conclude that: (1) Working memory resource is a major factor in Bayesian reasoning. The performance of Bayesian reasoning is influenced by working memory span and working memory load. (2) A Bayesian facilitation effect exists, and replacing the standard probability format with a natural frequency format can significantly improve Bayesian performance. (3) Bayesian facilitation occurs only in participants with sufficient working memory resources.

Universal and Specific Predictors of Chinese Children With Dyslexia - Exploring the Cognitive Deficits and Subtypes

While previous studies have shown that the impact of phonological awareness (PA) and rapid automatized naming (RAN) on dyslexia depends on orthographic complexity in alphabetic languages, it remains unclear whether this relationship generalizes to the more complex orthography of Chinese. We investigated the predictive power of PA, RAN, and morphological awareness (MA) in dyslexia diagnosis status in a sample of 241 typically developing and 223 dyslexic Chinese-speaking children. Compared with the control group, children with dyslexia performed notably worse on character reading and all three cognitive measures. A logistic regression analysis showed that PA and RAN were both significant predictors, while MA also played a relatively important role for predicting dyslexia status in Chinese children. In the next step, we used multigroup analyses to test if these three cognitive predictors were of the same importance in predicting reading variance in different reading proficiency groups. And the results showed that the regression coefficient of MP is stronger for the control group than the dyslexia group, while the regression coefficient of PD tends to be stronger for the dyslexic group. Further cluster analysis identified four subtypes of dyslexia in this sample: a global deficit group, a phonological deficit group, a RAN deficit group, and a mild morphological deficit group. Our findings are largely consistent with previous studies of predictors of dyslexia, while uniquely demonstrating the differences in predictive power of these three cognitive variables on reading, as well as the unique contribution of MA in Chinese reading.

Good Slang or Bad Slang? Embedding Internet Slang in Persuasive Advertising

Internet slang is a new language with innovative and novel characteristics, and its use can be considered a form of creative advertising. Embedding internet slang into advertisements can thus enhance their creative quality and increase the attention paid to them. In this study, we examined the effect of the characteristics of internet slang on attention to advertisements, brand awareness, product evaluation, and attitudes toward advertising by conducting two empirical studies, one utilizing eye-tracking experiments and the other utilizing questionnaires. We found that using internet slang in advertising significantly increased audience attention compared with standard language but did not necessarily improve product evaluation and brand awareness for various types of goods. We discovered code-switching effects of psycholinguistics existed in standard language and its variant (internet slang). Our findings can guide advertisers in selecting the embedded language that can be effective in achieving their desired advertising effect. Our findings also indicate that the excessive use of internet slang may have a negative effect on brand and product evaluation.

THIS1 is a putative lipase that regulates tillering, plant height, and spikelet fertility in rice

Proper branching and successful reproductive growth is of great importance for rice productivity. Substantial progress has been made in uncovering the molecular mechanisms underlying tillering control and spikelet sterility. However, rice tillering is developmentally controlled, and how it is regulated coordinately with reproductive growth remains unclear. This study characterized a rice mutant, the most obvious phenotypes of which are high tillering, reduced height, and infertile spikelets (named this1). Similarly to the high tiller number and dwarf mutants in rice, the increased tiller number of this1 plants is ascribed to the release of tiller bud outgrowth rather than to increased tiller bud formation. In the this1 mutant, however, the accelerated rate of branching was delayed until the stem elongation stage, while other mutants lost the ability to control branching at all developmental stages. The seed-setting rate of this1 was less than half that of the wild type, owing to defects in pollen maturation, anther dehiscence, and flower opening. Histological analyses showed that the mutation in this1 resulted in anisotropic cell expansion and cell division. Using a map-based cloning approach, This1 was found to encode a class III lipase. Homology searches revealed that THIS1 is conserved in both monocots and eudicots, suggesting that it plays fundamental role in regulating branch and spikelet fertility, as well as other aspects of developmental control. The relative change in expression of marker genes highlighted the possibility that This1 is involved in phytohormone signalling pathways, such as those for strigolactone and auxin. Thus, This1 provides joint control between shoot branching and reproductive development.