Sexual dimorphism in fishes is an important biological aspect, which helps distinguish males and females based on various primary and secondary sexual characteristics. Based on sexual dimorphic characteristics fishes can be categorized as monomorphic, temporary dimorphic and permanent dimorphic. These characters can be either persistent or non-persistent types in fishes. Sexual dimorphism also can be determined using biometric characteristics as well. In fish, males typically display more conspicuous sexual characteristics compared to females, including the development of vibrant colouration, nuptial tubercles, or the formation of accessory organs. Sexual dimorphism is a significant trait helpful in categorizing and classifying fish species more accurately. It also has significant implications for commercial fisheries, which can aid in catch from the wild. This also can contribute to understanding the intricacies of aquatic ecosystems but also underscores the practical applications of studying sexual dimorphism in the context of sustainable fisheries management.

Sexual Dimorphism in Commercially Important Fish Species in India: A Review

Global food security is desperate due to biotic and abiotic stress because of change in climate and increase in population. Among various abiotic stress, drought severely affects the growth and productivity of crops.&nbsp; Drought stress due to climate change is the severe threat for grain legume production. Pigeonpea (Cajanus cajan L.) is the important sources of protein for human nutrition and also to enhance the soil fertility. It is the resilient crop which can tolerate under drought condition when compared to other legume crops. Even though, change in climate hinder the growth and productivity of pigeonpea especially drought stress. The reduction in yield mainly depends on the time of onset, intensity and duration of drought stress. Especially drought stress during late flowering and early pod development severely affects the yield in pigeonpea. This review examines the morphological, physiological, biochemical and molecular impacts of drought stress on pigeonpea plants. In order to improve resilience and maintain crop output in the face of shifting climatic circumstances, tackling the intricacies of drought stress in pigeonpea agriculture necessitates a multimodal strategy incorporating agronomic, physiological, biochemical and molecular methodologies. 
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Impact and Response of Drought Stress in Pigeonpea (Cajanus cajan L.): A Review&nbsp;

Background: This study aims to unravel the genetic intricacies regulating the reproductive prolificacy of Tibetan sheep, an indigenous breed prominently found in the Qinghai-Tibet Plateau.&nbsp; 
 
Methods: We employed meticulous sequencing and analytical strategies to discern the differential expressions of long non-coding RNAs (lncRNAs) and messenger RNAs (mRNAs) in the ovarian tissues of ewes with varying lambing numbers.&nbsp; 
 
Result: In our study, we identified 817 genes with differential expression in twin-bearing ewes compared to those bearing single lambs. This group comprised 495 upregulated and 322 downregulated genes, featuring key candidates like COL1A1, COL1A2, BMPRIB, GDF9, BMP15 and TGFB2. Furthermore, we discovered a notable difference in the expression of long non-coding RNAs (lncRNAs) in ewes birthing twins as opposed to singles, with 210 differentially expressed lncRNAs identified, including 91 upregulated and 119 downregulated. Key genes and lncRNAs associated with reproductive efficiency were identified, contributing valuable insights into the underlying molecular mechanisms and offering a robust foundation for enhancing breeding strategies and overall livestock productivity.

Sexual Dimorphism in Commercially Important Fish Species in India: A Review

Impact and Response of Drought Stress in Pigeonpea (Cajanus cajan L.): A Review

Elucidating the Genetic Regulation of Reproductive Prolificacy in Tibetan Sheep Through Ovarian Tissue Sequencing