Results 91 to 100 of about 98,497 (305)

Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits

Advanced Science, EarlyView.
Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu, Lan Pang, Wenqi Shi, Ting Feng, Zhi Dong, Yifeng Sheng, Sicong Zhou, Longtao Yu, Hao Guo, Ying Wang, Jiani Chen, Jianhua Huang   +11 more
wiley   +1 more source

Molecular cytogenetics of the California condor: evolutionary and conservation implications [PDF]

, 2009
Evolutionary cytogenetic comparisons involved 5 species of birds (California condor, chicken, zebra finch, collared flycatcher and black stork) belonging to divergent taxonomic orders.
Romanov, Michael N, Ryder, Oliver A, Modi, William S, Green, Eric D   +3 more
core   +1 more source

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source

Ecology and the evolution of sex chromosomes

Journal of Evolutionary Biology, 2021
AbstractSex chromosomes are common features of animal genomes, often carrying a sex determination gene responsible for initiating the development of sexually dimorphic traits. The specific chromosome that serves as the sex chromosome differs across taxa as a result of fusions between sex chromosomes and autosomes, along with sex chromosome turnover ...
openaire   +4 more sources

A Non‐Canonical Role of SMAD4 in Regulating 3D Genome Architecture to Inhibit Lung Squamous Cell Carcinoma Development

Advanced Science, EarlyView.
SMAD4 is identified as a guardian of 3D genome architecture in lung squamous cell carcinoma. Loss of SMAD4 unleashes EP300 at chromatin loop anchors, strengthening enhancer–promoter looping and H3K27ac at the SOX2 locus to drive aberrant SOX2 activation and tumor cell proliferation.
Qian Tang, Chen Lian, Xinyan Han, Xuhan Zhang, Zihan Wang, Boyu Wang, Taoyu Zhu, Xinrui Lin, Xiaolei Wang, Yaping Xu, Manyu Xiao, Zijin Wang, Junming Li, Silin Chen, Yunze Wang, Yufei Liu, Songsong Li, Zuolin Shen, Xi Lu, Xueqi Han, Yilu Zhou, Mingyang Xiao, Jiayi Ran, Xiaoran Cao, Xinyi Xu, Hugo Sámano‐Sánchez, Alfredo Rodríguez, Lian Wang, Shuifang Chen, Zhanyu Xu, Shirong Zhang, Nuo Yang, Yong Tang, Jian Liu   +33 more
wiley   +1 more source

Dynamics of a sex-linked deleterious mutation in populations subject to sex reversal.

PLoS ONE, 2011
The heterogametic sex chromosomes (i.e. mammalian Y and avian W) do not usually recombine with the homogametic sex chromosomes which is known to lead into rapid degeneration of Y and W due to accumulation of deleterious mutations. On the other hand, some
Markku Karhunen
doaj   +1 more source

Plant sex determination and sex chromosomes [PDF]

Heredity, 2002
Sex determination systems in plants have evolved many times from hermaphroditic ancestors (including monoecious plants with separate male and female flowers on the same individual), and sex chromosome systems have arisen several times in flowering plant evolution.
openaire   +2 more sources

The Evolution of Mammalian X Chromosomes and X Chromosome Inactivation

, 2015
For many years it was thought that the X chromosome in all three major lineages of mammals (monotremes, marsupials and eutherians) had a shared evolutionary history.
Rodriguez Delgado, Claudia, Deakin, Janine   +1 more
core  

Identification of Putative Sex Chromosomes in the Blue Tilapia, Oreochromis Aureus, through Synaptonemal Complex and FISH Analysis

, 2001
Sex determination in the blue tilapia, Oreochromis aureus, is primarily a ZW female-ZZ male system. Here, by analysis of the pachytene meiotic chromosomes of O.
Carrasco, L., Carrasco, LAP, Bromage, Niall R, Harvey, SC, McAndrew, B., Masabanda, Julio S., Masabanda, Julio, Masabanda, JS, Harvey, Simon C, Campos-Ramos, R, Harvey, S., McAndrew, BJ, Carrasco, Luis Roman, Penman, DJ, Bromage, N., Penman, David, Griffin, DK, Masabanda, J., Campos-Ramos, Rafael, Carrasco, Luis A P, Bromage, NR, Griffin, Darren K, Harvey, Simon C., Bromage, Niall R., Griffin, D., Penman, David J., McAndrew, B.J., McAndrew, Brendan, Penman, D., Griffin, Darren K., Campos-Ramos, R.   +30 more
core   +1 more source

Placental Site Trophoblastic Tumor Acquires Immune Functions by Incorporating Host Maternal Genes

Advanced Science, EarlyView.
PSTT cells, through cell fusion with B cells, incorporate abundant non‐inherited maternal genes that are detectable by DNIMA. These hybrid cells acquire immunotherapy‐resistant genetic changes and increase the expression of B cell‐derived immune‐related molecules such as Ig, HLA, LILRB, SIGLEC10, and so on, creating an immunotolerant environment around
Kyosuke Kagami, Masanori Ono, Yasunari Mizumoto, Tatsuhito Kanda, Takashi Iizuka, Takiko Daikoku, Shin‐ichi Horike, Akira Hattori, Akihito Horie, Sachiko Minamiguchi, Tomoko Fujiwara, Kazuyoshi Hosomichi, Atsushi Tajima, Hirokazu Usui, Kaoru Abiko, Hiroshi Fujiwara   +15 more
wiley   +1 more source