نتایج جستجو برای: reproductive traits

تعداد نتایج: 189544  

Journal: :Evolution; international journal of organic evolution 2004
Joseph I Hoffman Ian L Boyd William Amos

Recent genetic studies of natural populations have shown that heterozygosity and other genetic estimates of parental relatedness correlate with a wide variety of fitness traits, from juvenile survival and parasite resistance to male reproductive success. Many of these traits involve health and survival, where the underlying mechanism may involve changes in the effectiveness of the immune system...

2008
Rubén Milla Luis Giménez-Benavides Alfonso Escudero Peter B. Reich

1. Improving our knowledge on plant functions underlying shifts in species ranges along altitudinal and latitudinal gradients is a research priority to understand biotic responses to climate change. Although much is known about biological responses to elevation, coupled observations of ecophysiological and reproductive traits with whole-plant performance metrics are rare, and thus our understan...

Journal: :Current Biology 2003
Christine Hunter Hui Sun R.Scott Poethig

Plants progress through a temporal sequence of juvenile, adult, and reproductive phases, each marked by the expression of phase-specific traits. Here we show that loss-of-function mutations in ZIPPY (ZIP) cause the premature expression of adult vegetative traits but do not accelerate the onset of reproductive competence or flowering time. ZIP encodes ARGONAUTE7 (AGO7), one of ten members of the...

2015
Haiyan Li John L. Lindquist Yunfei Yang Nikos T Papadopoulos

BACKGROUND Phenotypic plasticity of fitness-related traits is vital for plant species to adapt to variable environments. Chenopodium glaucum L. and Amaranthus retroflexus L. are two common weed species globally. Understanding the plasticity in life-history traits, especially in reproductive allocation, within and among these species is important for predicting their success and for managing the...

2015
Amy M. Boddy Hanna Kokko Felix Breden Gerald S. Wilkinson C. Athena Aktipis

The factors influencing cancer susceptibility and why it varies across species are major open questions in the field of cancer biology. One underexplored source of variation in cancer susceptibility may arise from trade-offs between reproductive competitiveness (e.g. sexually selected traits, earlier reproduction and higher fertility) and cancer defence. We build a model that contrasts the prob...

2016
Purushothaman Ramamoorthy Krishnamurthy Lakshmanan Hari Deo Upadhyaya Vincent Vadez Rajeev Kumar Varshney

Chickpea is the second most important legume crop largely grown under semi-arid tropics where terminal drought is one of the major constraints for its productivity. A trait-based selection had been considered more beneficial in drought tolerance breeding to overcome the environmental influence on drought yields. Large number of traits had been suggested in literature, with less indication on th...

Journal: :Flora - Morphology, Distribution, Functional Ecology of Plants 2004

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید