Yıldız Aka Kaçar

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• Professor
• Professor at Cukurova University

Almond is one of the economically important nut species for Türkiye. There are many genotypes adapted to different regions of Türkiye. The propagation of these genotypes through plant tissue culture methods is essential. Among nut species, almonds are classified as recalcitrant plants that respond poorly to plant tissue culture techniques. In this...

Kitap Bölümü

Çalışmanın amacı, kendine uyuşur 'Saurani', yarı uyuşur 'Sarı ulak' ve kendine uyuşmaz 'Kilis yağlık' zeytin çeşitlerinde eşeysel uyuşmazlık belirtilerinin ve zamanının belirlenmesi ayrıca iki farklı tozlama çalışmaları olan 'emaskülasyon sonrasında kendileme' ve 'kese sallama yöntemi ile kendileme' uygulayarak kullanılabilecek tozlama yöntemlerini...

Çalışmanın amacı, kendine uyuşur 'Saurani', yarı uyuşur 'Sarı ulak' ve kendine uyuşmaz 'Kilis yağlık' zeytin çeşitlerinde eşeysel uyuşmazlık belirtilerinin ve zamanının belirlenmesi ayrıca iki farklı tozlama çalışmaları olan 'emaskülasyon sonrasında kendileme' ve 'kese sallama yöntemi ile kendileme' uygulayarak kullanılabilecek tozlama yöntemlerini...

Zeytin (Olea Europaea L.)’De Döllenme Biyolojisi Ve Meyve Tutumunu Etkileyen Faktörler

The prevalence of sour orange rootstock in the southern and eastern part of the Mediterranean Basin is presently threatened by the spread of Citrus Tristeza Virus (CTV) and its main vector Toxoptera citricida, combined with abiotic constraints such as drought, salinity and alka-linity. The search for alternative CTV-resistant rootstocks that also w...

Z Çalışmanın amacı, kendine uyuşur 'Saurani', yarı uyuşur 'Sarı ulak' ve kendine uyuşmaz 'Kilis yağlık' zeytin çeşitlerinde eşeysel uyuşmazlık belirtilerinin ve zamanının belirlenmesi ayrıca iki farklı tozlama çalışmaları olan 'emaskülasyon sonrasında kendileme' ve 'kese sallama yöntemi ile kendileme' uygulayarak kullanılabilecek tozlama yöntemleri...

This study investigated the effects of cadmium (Cd) stress on the micropropagation and rooting dynamics of two myrtle (Myrtus communis L.) genotypes with different fruit colors under controlled in vitro conditions. We evaluated the response of these genotypes to varying concentrations of Cd (0, 100, 200, 300, 400, and 500 µM) to determine dose-depe...

This comprehensive article critically analyzes the advanced biotechnological strategies to mitigate plant drought stress. It encompasses an in-depth exploration of the latest developments in plant genomics, proteomics, and metabolomics, shedding light on the complex molecular mechanisms that plants employ to combat drought stress. The study also em...

This study defines the genetic characterization of 16 hazelnut varieties and 64 genotypes. SSR method was used in molecular characterization studies. 18 SSR primers were used. In the SSR method, 118 bands were obtained, and 115 were polymorphic. The similarity coefficient in overall genotypes were between 0.12 and 0.98 in SSR andthe polymorphism ra...

In this study, the solid culture method, and Plantform™ and SETIS™ temporary immersion bioreactor systems were used comparatively to propagate, root, and acclimatize ‘Grande Naine’ and ‘Azman’ banana varieties for rapid, cheap, and mass production in in vitro conditions. Micropropagation rate, plant height, number of leaves, and fresh and dry weigh...

The myrtle ( Myrtus communis ) plant naturally grows in the temperate Mediterranean and subtropical regions and is used for various purposes; thus, it is among the promising species of horticultural crops. This study aimed to evaluate and compare the performance of different propagation systems, including rooting, solid media propagation, rooting,...

Nar (Punica granatum L.), tropik ve subtropik iklim kuşağında yayılış gösteren, olumsuz koşullara dayanıklı bir bitki türüdür ayrıca sahip olduğu meyvelerin metabolit kompozisyonu oldukça yüksektir. Meyvelerin içerdiği değerli fitokimyasallar bu meyveye olan tüketici talebini arttırmaktadır. Son yıllarda besin içeriği zengin gıdalara olan ilginin a...

Mulberry is a preferred fruit, especially with its high antioxidant capacity, rich nutritional value, and unique aroma due to its high phenolic compound content. In recent years, the demand for functional foods, whose contribution to human health is better understood, has increased the demand for mulberry fruits. Türkiye has significant potential i...

3/2023 vol. 32 ORIGINAL RESEARCH Evaluation of the Genetic Relationships of Some Endangered Tunisian Peas Adapted to Arid Regions and Turkish Accessions Revealed by Inter Simple Sequence Repeat (ISSR) Markers Amina Mohamed 1,2, Yildiz Aka Kaçar 3,4, Faruk Toklu 5, Dicle Dönmez 4, Mansur Hakan Erol 4, Özhan Şimşek 6, Belgin Biçen 4, Tolga Kar...

Cherry laurel (Laurocerasus officinalis) belongs to the Rosacea family. The main distribution area for edible cherry laurels is the Blacksea shores in Turkey. In the study, it was aimed to reveal the differences among the various cherry laurel genotypes by using the SSR molecular marker technique. Cherry laurel genotypes were selected from the Blac...

Plant growth regulators are organic chemical compounds that alter or regulate various physiological processes appreciably in a plant when used in small concentrations. These plant growth regulators have become an integral component of agro-technical procedures for most plants cultivated and particularly for fruit plants. Fruits are regarded as a hi...

Bananas (Musa spp.) are one of the most important fruit with the highest export and import volume in the tropical and subtropical climate zones of the world. The banana is grown in approximately 150 countries, whereas, the production amount is about 119 million tons. The triploid bananas are almost sterile and develop the fruit by parthenocarpy and...

The Spathiphyllum, is an indoor ornamental plant belonging to the Araceae family. Spathiphyllum genus, which has 36 species in nature, is a very strong growing and easy to care for an indoor plant. Vegetative propagation of spathiphyllum is known to be difficult. For this reason, current production does not meet the demand sufficiently. Today, plan...

BIOTECHNOLOGICAL STRATEGIES FOR THE MITIGATION OF ABIOTIC STRESS IN FRUIT CROPS UNDER SUSTAINABLE AGRICULTURE

In the human diet, fruits are a significant source of vitamins, beneficial nutrients, fiber, and antioxidants, as well as a key source of foreign exchange earnings. Turkiye has a rich scope of plant genetic resources and a wide range of fruit diversity, making it one of the most significant in the world. More than 80 fruit species are cultivated. A...

Myrtle (Myrtus communis L.) is a typical plant cover of the Mediterranean region. It is an evergreen perennial shrub or small tree belonging to Myrtaceae family with a natural spread in tropical and subtropical areas. RNA sequencing technique is a common method used to identify transcriptomes. Next-generation sequencing technologies have recently b...

Peaches and nectarines are among the fruit groups that are cultivated and have economic value. Plants with certain characteristics such as resistance to biotic and abiotic stresses are developed by interspecies hybridization. Reproduction of hybrid plants is carried out by plant tissue culture techniques and their response to stress factors in vitr...

The Myrtle plant (Myrtus communis L.) is a plant species of the Myrtaceae family and a member of the maquis community, which naturally spreads in Mediterranean regions. Being resistant to arid conditions, the ecological distribution areas of the myrtle plant have been allowed to expand. The myrtle plant has been used of medicinal and aromatic plant...

Mango (Mangifera indica L.) is an important fruit crop throughout the world. Consequently, due to its excellent nutritional value and delicious taste, it is admired as the “king of fruits” particularly in tropical regions around the world. Pakistan is agro-ecologically diverse and feasible for the cultivation of subtropical and tropical fruits. Man...

Peaches and nectarines are among the fruit species that are cultivated and have economic value. Plants with certain characteristics such as resistance to biotic and abiotic stresses are developed by interspecies hybridization. Reproduction of hybrid plants is carried out by plant tissue culture techniques and their response to stress factors in vit...

Background Earlier next-generation sequencing technologies are being vastly used to explore, administer, and investigate the gene space with accurate profiling of nucleotide variations in the germplasm. Overview and Progress Recently, novel advancements in high-throughput sequencing technologies allow a genotyping-by-sequencing approach that has o...

Background Banana is largely grown in tropical and subtropical climates. It is rich in various food components and has quite a high economic value. Unavailable ecological and agricultural conditions cause quantitative and qualitative losses in banana cultivation. Along with global climate change, drought stress is becoming prominent day by day. Me...

Background Turkey is one of the major exporters of mandarins in the Mediterranean region. Seedlessness in citrus, which is one of the most desired fruit quality traits, especially in fresh mandarin export markets, can be obtained via triploidy as in many fruit species. Triploid plants can be recovered by 2x × 2x hybridizations in citrus, as well as...

Pomegranate (Punica granatum L.) is a tropical and subtropical climate plant with high economic value and nutritional content. Having valuable phytochemicals in terms of health caused an increase in demand for pomegranate consumption and this situation accelerated pomegranate production. However, global warming and climate changes are among the fac...

Fruits constitute a vital part of the human diet and an excellent source of nutrients as well. Most of the indigenous fruits are the key source of foreign exchange earnings and also provide a sufficient amount of income to the fruit growers worldwide in the form of fresh and processed products. However, besides production, multiple yield-declining...

Turunçgiller yetiştiriciliği yapılan en önemli ve yüksek tür çeşitliliğine sahip meyve gruplarından biridir. Taze olarak tüketilmesi ve farklı endüstrilerde ham madde olarak kullanılması turunçgillerin önemini artırmaktadır. Bu nedenle turunçgillerde yeni çeşit ve anaç geliştirme çalışmaları oldukça önemlidir. Melezleme çalışmaları sonucunda elde e...

The development of strawberry (Fragaria × ananassa Duchesne ex Rozier) genotypes, which have good taste, size and firmness, is among the most important and prioritized issues of today. We aimed to develop new strawberry cultivars having standards of priority issues for strawberry. Eight prominent strawberry genotypes were obtained from the cross of...

zet Bu çalışmada, Akdeniz Bölgesinde doğal olarak yayılım gösteren üç farklı keçiboynuzu genotipinin Plantform biyoreaktör sistemi ve katı besin ortamlarında karşılaştırmalı olarak mikroçoğaltım çalışmaları yürütülmüştür. İlk olarak genotiplerin katı kültür mikroçoğaltım denemelerinde, MS, ½ MS ve WPM besin ortamları ile BA (0, 0.5, 1.0, 1.5, 2.0 m...

In order to increase access to nutritious foods around the world, innovative technologies need to be developed and integrated into agricultural production systems. The new plant breeding techniques developed offer many advantages for making modifications in the plant genome. CRSPR/Cas9, one of the genome editing technologies, is an efficient system...

İspanyol, Tunus ve Türk incir gen bankalarındaki bazı incir genotiplerinin genetik çeşitliliğini paydaşlar tarafından istenilen özelliklere sahip ve kuraklık/tuzluluk koşullarında yetiştiriciliğe en uygun genotipleri belirlenmesi için fenotipik yönden incelenmesi. Sekansa dayalı genotipleme yöntemi ile genetik çeşitliliğin araştırılması / Phenotypi...

Genetic engineering technologies have been taken part in the breeding strategies of fruit crops. Several biotechnological methods can be applied to plant to have better ones in the process of fruit breeding. Among these methods, Agrobacterium-mediated gene transfer is frequently used. Citrus species are the most widely grown fruit crops. Despite su...

In this study, micropropagation and rooting studies were carried out in comparative Plantform bioreactor system and solid media with five different blackberry cultivars (Black Diamond, Black Pearl, Chester, Triple Crown and New Berry). Micropropagation of blackberry cultivars were evaluated in solid MS media supplemented with BA (Benzyl Adenine) (0...

Mandarin (Citrus reticulate Blanco) and lemon (C.limon L.) are among the most cultivated Citrus species in the world.Among different approaches, gamma radiation is widely used to induce mutations in citrus breeding studies. Gamma radiation causes DNA damage, randomly inducing several mutations in the genome. Molecular techniquesarewidely used to de...

Turkey has an advantageous position for the cultivation of ornamental plants for reasons such as favourable conditions, proximity to markets and cheap labour. In addition to classical production methods, biotechnological methods are used to meet the demand of Spathiphyllum, which is an indoor plant. In recent years, it has been started to be used i...

DNA marker analysis, combined with linkage and quantitative trait locus (QTL) analyses, has drastically changed the scheme of citrus breeding by enabling the marker-assisted selection (MAS) of a promising scion at the early seedling stage. This technique has greatly enhanced breeding efficiency by minimizing the period of trait evaluation at the or...

The existence of a large amount of seeds in citrus fruits results as a major impediment to customer acceptability, even if the fruits have high organoleptic properties. Irradiation, which mainly reduces seed number of varieties, is a faster way than hybridization. The use of irradiation in citrus breeding programs is now quite widespread with most...

Myrtle is known to be an important aromatic and medicinal plant species. Myrtle plant is consumed mainly as spice having several uses in the perfumery, food and pharmaceutical industries. It is also widely used for ornamental purposes such as fencing, roadsides, and green cutting. Plant tissue culture techniques are an essential tool to micropropag...

Myrtle is known native to Southern Europe and North Africa and was naturally grown in tropical and subtropical regions. Myrtle could be grown successfully in soils under hot, arid environments. Myrtle has several genotypes with yellowish-white or bluish-black colored fruits. The present study aimed to investigate genetic diversity among myrtle geno...

In this study, micropropagation and rooting of ‘Tuzcu 31-31 sour orange’ and ‘C-35 citrange’ citrus rootstocks were conducted by comparing with Plantform temporary immersion bioreactor system and traditional solid culture. Murashige and Skoog Medium (MS) and Woody Plant Medium (WPM) supplemented with 6-Benzylaminopurine (BAP) (0, 1.0, 2.0 mg L-1),...

Pomegranate is known as a subtropical climate plant with very strong root system, in perennial, bushy form. Microsatellites are composed of 1-6 bp nucleotide groups which are repeated on successive chromosomes of high organisms. New generation DNA sequencing technologies developed in recent years and emerging as one of the most important technologi...

Several citrus varieties produce apomictic seeds by the nucellar embryony (NE) mechanism. Nucellar embryos are created from nucellus tissue and have an identical genetic constitution to the mother plant. Nucellar embryony is known to be an unusual feature of seed production in many citrus cultivars. The term “NE” refers to the development of identi...

Citrus is a fruit species commercially in the tropical and subtropical regions of the world. Growth and development of plants are affected by environmental factors such as salinity and drought. Global climate change will increase water stress risk in the near future. One of the purposes of plant biotechnology is the development of plants tolerant t...

The diversity and economic value of citrus encourages study of plant biotechnology in addition to classical plant breeding. In this study, optimization of plant regeneration was aimed at using root explants developed from the seeds of Carrizo citrange germinated in in vitro conditions. Root explants of Carrizo citrange were cultured in MS nutrient...

Citrus oils are mixtures of volatile components as terpenes, oxygenated compounds and terpenoids. In the present study different fruits of citrus varieties were collected from the local market in Adana/Turkey. The essential oils of peels were extracted using hydro distillation extraction method. The essential oil compositions of these citrus variet...

Origanum sipyleum L. is a species that is endemic to Turkey with known medicinal and aromatic properties and with a long historical use in Turkish folk medicine. Micropropagation serves as one possible method to clone and protect O. sipyleum. In this study, nodes, which served as the explants, were cultured on Murashige and Skoog (MS) basal medium...

The objective of this study was to investigate the acclimatization and performance of banana (Dwarf Cavendish) in two substrates inoculated with different AM fungi (Glomus. caledonium and G. macrocarpun) and assess the plantlets dependency on inoculation for phosphorus (P) and zinc (Zn) uptake along with biomass development. In addition, to investi...

Molecular diversity and genetic relationships among the most typical Hungarian and Turkish melon accessions were analysed using SSR markers. Thirty melon accessions were characterized by 15 SSR primers. SSR primers generated a total of 69 bands across the 30 melon accessions, of which 66 were polymorphic. The sizes of the bands ranged from 112 to 2...

Fruit breeding is an ancient technology with dynamic current techniques and an exciting future. There are a number of restraints to conventional fruit breeding which are especially limiting in tree fruits with their long juvenile period, large plant size, and which are represented by unique, highly-selected heterozygous genotypes. Biotechnology off...

The genus Cyclamen (family Myrsinaceae) contains about 20 species, most of which occur in the Mediterranean region. Turkey has critically important Cyclamen genetic resources. Molecular characterization of plant materials collected from different regions of Turkey in which Cyclamen species grow naturally, namely Adana, Antalya, Aydın, Muğla, İzmir,...

The genus Cyclamen (family Myrsinaceae) contains about 20 species, most of which occur in the Mediterranean region. Turkey has critically important Cyclamen genetic resources. Molecular characterization of plant materials collected from different regions of Turkey in which Cyclamen species grow naturally, namely Adana, Antalya, Aydin, Mugla, Izmir,...

Ferns, which were known to be exist since ancient periods, were first observed on earth approximately 300 million years ago at the Devonian Era. Considering that no other species were living on earth at that Era, existence of ferns and the diversification of their form becomes a phenomenal subject. Ferns also described as the source of the worlds c...

ukurova Üniversitesi, Ziraat Fakültesi, Bahçe Bitkileri Bölümünde yürütülen bu çalışmada 20 trabzon hurması çeşit ve tiplerinde morfolojik ve moleküler karakterizasyon yapılmıştır. Çalışmada morfolojik karakterizasyon için ağaçlarının gelişme durumu, büyüme şekli, dal yapıları ile yaprak, meyve ve tohum özellikleri incelenmiştir. Morfolojik karakte...

Opuntia ficus-indica Mill. commonly known as cactus pear is the most agronomically important species in Cactaceae. Turkey has important genetic resources of Opuntia spp. which should be characterized for further breeding strategies. In this study, molecular characterization of plant materials collected from different regions of Turkey in which Opun...

Improving new seedless citrus varieties is currently the main aspect of citrus breeding programs for both our country and the world. Triploid plants can be recovered directly from artificial and spontaneous mutations as well as crosses between two diploid genotypes resulting from the fertilization of 2n megagametophyte or by hybridization between...

Today, fruit science have well been established in world trade networks and sophisticated cultural and postharvest technologies that allow fruits to be enjoyed throughout much of the year, instead of mere weeks per year like our ancestors experienced. Especially modern biotechnological methods including genetic engineering technologies have been ta...

The morphology of 279 accessions of Cyclamen sp. growing naturally in Turkey, namely C. alpinum (syn. C. trochopteranthum), C. graecum, C. hederifolium (syn. C. neapolitanum) and C. mirabile, was characterized. Plants with intact tubers were collected from locations in Antalya, Isparta, Aydın, Muğla, İzmir and Denizli, determined by GPS, where they...

In this study, embryo-like structures (ELSs) were induced in four endemic Turkish Cyclamen species (C. cilicium Boiss. et Heldr., C. parviflorum Pobed., C. mirabile Hildebr. and C. pseudibericum Hildebr.) in the presence of 13 combinations of two plant growth regulators (2,4-dichlorophenoxyacetic acid and 6-(γ,γ-dimethylallylamino)purine) and four...

Snake melon is an important cucurbit crop especially in the Southeastern and the Mediterranean region of Turkey. It is consumed as fresh or pickled. The production is mainly done with the local landraces in the country. Turkey is one of the secondary diversification centers of melon and possesses valuable genetic resources which have different morp...

The genetic diversity of Turkish watermelon genotypes selected from the watermelon genetic resource collection was evaluated by simple sequence repeat (SSR) and sequence-related amplified polymorphism (SRAP) markers. Most of the accessions were collected from various geographical regions of Turkey. Different Citrullus species, wild relatives, forei...

Twenty cyclamen taxa belonging to the Primulaceae originate from the Mediterranean region and grow under trees and bushes. There are 10 cyclamen species growing naturally in Turkey, five of which are endemic. In this study, intact cyclamen plants were collected from nature with their tubers intact. Collection took place in spring and autumn in Adan...

Clementine mandarins, is a very important fruit group due the production of high quality fruits that can be seedless as consequence to their sexual self-incompatibility. In this study, the self-compatible/incompatible status of 40 clementine mandarins provided by the Cukurova University collection was determined by histological analysis. For this p...

The availability of a saturated genetic map of Clementine was identified by the International Citrus Genome Consortium as an essential prerequisite to assist the assembly of the reference whole genome sequence based on a Clementine derived haploid. The primary goals of the present study were to establish a Clementine reference map, and to perform c...

Obtaining haploid plants is one of the important tool that shorten the plant breeding process. Anther culture is one of the method used for obtaining haploid plants. Anther culture studies are carried out for several plant species. In the present study, flowers at different sizes of W. Murcott mandarin were collected at the blooming period. Stage o...

Many stress-related interactions such as pathogen infection, insect tolerance, salt tolerance, auxin degradation, cell wall lignification, tissue suberization, and plant senescence involve various isoforms of peroxidases. Peroxidase gene polymorphism (POGP) markers have been used to estimate diversity, relationships and population structure among 8...

Cyclamen sp. occupies a wide swathe of habitats across Turkey. Ten wild Cyclamen species grow naturally in Turkey, some being endemic. Due to this genetic variation, wild Cyclamen sp. with traits such as flower shape and colour, leaf shape and colour and disease resistance make these species important for cyclamen breeders. In this study, the poten...

The proper management of plant genetic resources, ex situ conservation in gene banks requires the selection of genetically distinct accessions for long-term preservation. The conservation of vegetable resources in the Latvian Gene Bank is prioritised particularly for the cultivars of local origin, old cultivars and landraces. Due to improper seed p...

Iron (Fe) deficiency is one of the common problems in strawberry (Fragaria x ananassa Duch.) growing regions. In vitro screening enables researchers to evaluate genotype performance under several concentrations of Fe in a relatively fast and economical way. Therefore, we evaluated the responses of several genotypes belonging to octoploid Fragaria c...

Iron is one of the most important elements in plant mineral nutrition. Fe deficiency is a critical abiotic stress factor for Mediterranean citriculture; the development of marker-assisted selection for this trait would greatly enhance rootstock breeding. In this study, DNA sequencing and single-stranded conformation polymorphism (SSCP) analyses wer...

The cultivated strawberry Fragaria × ananassa Duch. is the natural hybrid of F. chiloensis (L.) Mill. and F. virginiana Mill. The progenitor species have high genetic diversity compared with the cultivated genotypes; therefore, the use of wild relative in F. chiloensis breeding could provide a good for broadening the available genetic variations of...

Citrus is one of the world's important fruit crops. Recently, citrus molecular genetics and biotechnology work have been accelerated in the world. Genetic transformation, a biotechnological tool, allows the release of improved cultivars with desirable characteristics in a shorter period of time and therefore may be useful in citrus breeding program...

The aim of the present study was to characterize the mandarin germplasm conserved at the Tuzcu Citrus Variety Collection at Cukurova University in Turkey using simple sequence repeat (SSR) and sequence-related amplified polymorphism (SRAP) based molecular approaches. Genetic characterization of 65 mandarins was performed using 14 SSR markers and 21...

Iron (Fe) deficiency is an important nutritional problem occurring in plants and humans in the world. It is also common nutritional problem in Turkey and the strawberry is known as a sensitive species to Fe deficiency which results in significant yield and quality losses. The objective of this study was to determine the factors affecting the sensit...