Hasan Alhaddad

Hasan Alhaddad
Kuwait University | KU · Department of Biological Sciences

Doctor of Philosophy

About

131
Publications
29,508
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570
Citations
Citations since 2016
94 Research Items
438 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Introduction
I am an assistant professor of animal genetics at Kuwait University. My lab at Kuwait University is devoted to study dromedary camels. I am also interested in feline genomics and cat breed history. My hobby is to make graphs in R.
Additional affiliations
September 2013 - present
Kuwait University
Position
  • Professor (Assistant)
Description
  • Our research group focuses on the molecular and morphological variation in the single humped camel

Publications

Publications (131)
Article
Full-text available
Populations of broadly distributed species often exhibit geographic structuring, which is sometimes reflected in phenotype. The monotypic Indian gerbil ( Tatera indica ) is an example of a widely distributed species, with its range encompassing much of Asia. This study aims to determine if T. indica populations exhibit marked variation in skull mor...
Article
Full-text available
Recent phylogenetic studies amended the taxonomy of three-toed jerboas (subfamily Dipodinae), including raising subspecies to full species. Here, we use geometric morphometrics to compare scaled-shape differences in dipodine crania while considering their revised taxonomy. We sampled Dipus deasyi, D. sagitta halli, D. s. sowerbyi, Jaculus blanfordi...
Article
The genus Desmodillus is monospecific, consisting of only the Cape short-eared gerbil ( Desmodillus auricularis ). Despite being widely distributed across southern Africa, previous studies did not find evidence of intraspecific phenotypic geographic differentiation. The objectives of this study is to use geometric morphometrics to investigate if an...
Presentation
Full-text available
A brief summary of the our current works on camel coat genetics.
Poster
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Examine cranial variation patterns across 42 sampled Gerbillini A species, and determine if such variation is associated with ecological factors.
Poster
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Introduction • Animal parentage testing revolves around (1) obtaining an identity certificate, (2) collecting family relationships with certainty for selective breeding, and (3) providing evidence for pure bred and pedigreed animals, which is linked to an increased market value. • Parentage testing is underused for dromedary camels especially for t...
Poster
Full-text available
Morphological variations in rodents
Presentation
Full-text available
The morphological and behavioral variations of horse breeds are living examples of a successful domestication story and a documentation of intense selection efforts. Traits under selection, or by-products of it, in horses are largely quantitative in nature and are affected by multiple genes. The current challenge in equine genetics is developing th...
Poster
Full-text available
The morphological and behavioral variations of horse breeds are living examples of a successful domestication story and a documentation of intense selection efforts. Traits under selection, or by-products of it, in horses are largely quantitative in nature and are affected by multiple genes. The current challenge in equine genetics is developing th...
Article
Full-text available
Dromedary camels are outstanding livestock that developed efficient abilities to tolerate desert conditions. Many dromedary camel-types (i.e., named populations) exist but lack defined specific breed standards, registries, and breeders’ governing organizations. The breed status of dromedary camel-types can partly be assessed by exploring mitochondr...
Article
Several FGF5 mutations are associated with hair length variation in many domestic animals, including New World camelids. The dromedary was investigated in the present study with breeds exhibiting marked variations in hair length. This study aimed to: (1) identify the molecular variation(s) in the three exons of FGF5 of a diverse group of breeds (Me...
Presentation
Full-text available
This is our practical guide for the collection of camel samples and phenotypes. It summarizes our work for the past 6 years. It contains a detailed description of SamplEase, which is an App that we developed for the collection of sample information and phenotypes. Also the guide provide suggestions to the collection of images for image-based morpho...
Article
Full-text available
The dromedary camel is unique among livestock for being adapted to hot deserts. This livestock was domesticated for its beneficial uses to desert dwellers. Unlike other domesticated animals, camels lack breed standards, registries, or governing breeders' organizations. Nonetheless, over 200 camel populations worldwide are assigned local names, whic...
Poster
Full-text available
The FGF5 gene was identified to be associated with the hair length variations in the dromedary camels with a nonsynonymous mutation in exon3 (c.779 C>T) that changes the amino acid from Proline to Leucine and explains three hair length types: (1) homozygous (C/C) genotype, which associates with the shortest hair length, (2) heterozygous (C/T) genot...
Poster
Full-text available
This project aims to sequence the TYR gene in different camel breeds, with the emphasis on spotting the polymorphism responsible for the syrupy camel coat color phenotype.
Article
Full-text available
Cats are ubiquitous companion animals that have been keenly associated with humans for thousands of years and only recently have been intentionally bred for aesthetically appealing coat looks and body forms. The intense selection on single gene phenotypes and the various breeding histories of cat breeds have left different marks on the genomes. Usi...
Article
Full-text available
Camel populations can be found in large parts of the arid regions of Africa, Asia, and Australia. In this broad distribution, they exhibit large phenotypic variation, which so far has mostly been examined using traditional distance based morphometric approaches. The main pitfalls of previous studies include (1) the relatively few and ambiguously de...
Article
Full-text available
Aim: We test whether geographic variation in length of rodent species’ appendages follows predictions of Allen’s rule—a positive relationship between appendage length and temperature—at a broad taxonomic scale (order Rodentia). We also test if the applicability of this rule varies based on the unit of analysis (species or assemblage), examined appe...
Poster
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Mitochondrial DNA was used to analyze the maternal relationships between Mezayen (Beauty contests) camel-types.
Poster
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Mitochondrial DNA was used to explore the relationships between camel-types and to identify and quantity variation across the sequenced mt-DNA region.
Article
The dromedary camel is a unique livestock for its adaptations to arid-hot environments and its ability to provide goods under extreme conditions. There are no registries or breed standards for camels. Thus, named camel populations (i.e. camel-types) were examined for genetic uniqueness and breed status. Camel populations are generally named based o...
Presentation
Full-text available
ورشة العمل التي أقيمت في جامعة السلطان قابوس في سلطنة عمان والتي تتناول أهمية بنات بنوك للعينات البيولوجية والصفات الوراثية للحيوانات المستأنسة ومثال عليها عن الأبل. الورشة كانت باللغة العربية وتتيح لغير المتمكنين من اللغة الإنجليزية الاطلاع وفهم أهمية هكذا مشروع. ممكن للأفكار التي تم استعراضها أن تطبق على أي كائن حي حتى الإنسان
Poster
Full-text available
The main aim of this work is to determine if cricetid subfamilies significantly differ in standard external body measurements (relative tail length [RTL], relative ear length [REL], relative hindfoot length [RHFL], and head-body length [HBL]) using data compiled from the literature and museum databases and to determine which pairs of subfamilies si...
Article
Full-text available
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
Article
Full-text available
Camels are livestock that exhibit unique morphological, biochemical, and behavioral traits, which arose by natural and artificial selection. Investigating the molecular basis of camel traits has been limited by: (1) the absence of a comprehensive record of morphological trait variation (e.g., diseases) and the associated mode of inheritance, (2) th...
Data
Terminology of Mezayen camel coat texture and ear shape. Phenotype terminologies were translated from original Arabic terms and the Arabic pronunciation shown in italics.
Data
Camel terminology used to describe female camel age classes. Age terms were translated from original Arabic terms and the Arabic pronunciation is shown in italics. Similar names are given to male camels with slight differences related to gender changes to original terms in Arabic.
Data
Names of “Mezayen” camel breeds and their subtypes. Names of breeds and subtypes were translated from original Arabic terms and the Arabic pronunciation shown in italics. The translations are near exact to what is offered by the breeders, and in some cases the names do not exactly reflect the actual appearance. For visual comparison refer to Figure...
Data
Current sample list and information of the Cdrom Archive.
Article
Full-text available
Camels are livestock with unique adaptations to hot-arid regions. To effectively study camel traits, a biobank of camel DNA specimens with associated biological information is needed. We examined whole-blood, saliva (buccal swabs), and tail-hair follicle samples to determine which is the best source for establishing a DNA biobank. We inspected five...
Data
Permutation-based ANCOVA summary tables, testing the difference in the relationship between extracted DNA amount of first elution (response variable) and starting whole-blood DNA sample quantity (covariate) among each of the following fixed factors: (a) replica, (b) individual camel, and (c) breed. df = degrees of freedom, SS = unique sums of squar...
Data
Permutation-based ANCOVA summary tables, testing the difference in the relationship between extracted DNA amount of first elution (response variable) and time (covariate) for saliva DNA samples among each of the following fixed factors: (a) replica, (b) individual camel, and (c) breed. df = degrees of freedom, SS = unique sums of squares, MS = mean...
Data
Permutation-based ANCOVA summary tables, testing the difference in the relationship between extracted DNA amount of first elution (response variable) and starting saliva DNA sample quantity (covariate) among each of the following fixed factors: (a) replica, (b) individual camel, and (c) breed. df = degrees of freedom, SS = unique sums of squares, M...
Data
Permutation-based ANCOVA summary tables, testing the difference in the relationship between extracted DNA amount of first elution (response variable) and starting tail-hair DNA sample quantity (covariate) among each of the following fixed factors: (a) replica, (b) individual camel, and (c) breed. df = degrees of freedom, SS = unique sums of squares...
Data
Permutation-based ANCOVA summary tables, testing the difference in the relationship between extracted DNA amount of first elution (response variable) and time (covariate) for tail-hair DNA samples among each of the following fixed factors: (a) replica, (b) individual camel, and (c) breed. df = degrees of freedom, SS = unique sums of squares, MS = m...
Data
Permutation-based ANCOVA summary table, testing the difference in the relationship between extracted DNA amount of first elution (response variable) and time (covariate) between the two DNA sources, saliva and tail-hair (fixed factor). df = degrees of freedom, SS = unique sums of squares, MS = mean square, p = permutation test p-values. Statistical...
Data
Electrophoretic analysis of five quantities of camel tail-hair follicles. (a-e) 1.5% agarose gels of DNA extracted from 10, 20, 30, 40, and 50 of camel tail-hair follicles, respectively. C1-C3: Majaheem, C4-C6: Sofor, C7-9: Waddah. Tail-hair follicles for each quantity in each of the nine camels (C1-9) were extracted three times (replicas). The DNA...
Data
Electrophoretic analysis of five quantities of camel blood. (a-e) 1.5% agarose gels of DNA extracted from 20, 40, 60, 80, and 100μl of camel blood, respectively. C1-C3: Majaheem, C4-C6: Sofor, C7: Waddah. Each blood quantity in the seven camels (C1-7) was extracted three times (replicas). The presented DNA in the gel is that of the first elution (E...
Data
Electrophoretic analysis of five quantities of camel buccal swabs. (a-e) 1.5% agarose gels of DNA extracted from 1, 2, 3, 4, and 5 of camel buccal swabs, respectively. C1-C3: Majaheem, C4-C6: Sofor, C7-9: Waddah. Buccal swabs for each quantity in each of the nine camels (C1-9) were extracted three times (replicas). The DNA in the gels is that of th...
Article
Full-text available
Careful collection and organization of biological specimens and their associated data are at the core of field research (e.g., ecology, genetics). Fieldwork data are often collected by handwriting or unsystematically via an electronic device (e.g., laptop), a process that is time‐intensive, disorganized, and may lead to transcription errors, as dat...
Article
Full-text available
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
Article
Full-text available
The development of high throughput SNP genotyping technologies has improved the genetic dissection of simple and complex traits in many species including cats. The properties of feline 62,897 SNPs Illumina Infinium iSelect DNA array are described using a dataset of over 2,000 feline samples, the most extensive to date, representing 41 cat breeds, a...
Poster
Full-text available
This poster involves using images from social media to study morphological integration in camels.
Poster
Full-text available
The poster provides an overview of the DNA sample/phenotype database of the Jamalid Report Lab at Kuwait University. This is aimed to provide the needed samples and phenotypes to investigate the genetic basis of camel phenotypes.