{"id":5094,"date":"2025-10-08T07:35:13","date_gmt":"2025-10-08T07:35:13","guid":{"rendered":"https:\/\/agrosynapsis.com\/?p=5094"},"modified":"2025-10-08T07:36:41","modified_gmt":"2025-10-08T07:36:41","slug":"genetic-vs-physical-maps","status":"publish","type":"post","link":"https:\/\/agrosynapsis.com\/es\/genetic-vs-physical-maps\/","title":{"rendered":"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match"},"content":{"rendered":"

A \ud835\uddfd\ud835\uddf5\ud835\ude06\ud835\ude00\ud835\uddf6\ud835\uddf0\ud835\uddee\ud835\uddf9 \ud835\uddfa\ud835\uddee\ud835\uddfd shows the actual DNA sequence of a chromosome, measured in base pairs (bp or kb). It tells us where genes and markers are located along the chromosome in physical space.
A \ud835\uddf4\ud835\uddf2\ud835\uddfb\ud835\uddf2\ud835\ude01\ud835\uddf6\ud835\uddf0 \ud835\uddfa\ud835\uddee\ud835\uddfd, on the other hand, is based on recombination frequencies, measured in centimorgans (cM). It reflects how often two markers are inherited together, not how many base pairs separate them.

While the order of markers is usually the same in both maps, the distances between them often don\u2019t align.
\ud83d\udccc Examples:
In Arabidopsis, 1 cM can represent 30\u2013550 kb.
In rice, the average is 258.5 kb per cM, but ranges from 120 to 1000 kb.
In wheat, variation is extreme: 118 kb to 22,000 kb per cM!

This means two markers genetically close may be physically far apart (or vice versa), depending on recombination patterns.

Why? \ud83c\udf0d
Recombination isn\u2019t random: it happens more in \u201chot spots\u201d (gene-rich regions) and less in \u201ccold spots\u201d (repetitive, gene-poor regions).
In wheat, over 85% of genes lie in just 5\u201310% of the chromosomal space, and these regions recombine much more frequently.

\ud83c\udf3e Implications For breeding:
Understanding recombination hot spots is more than a technical detail \u2014 it directly impacts how easily unwanted traits can be removed, especially when working with exotic or non-commercial germplasm.

It allows correct placement of flanking markers around a desirable gene.
This ensures that the target locus is captured with minimal linkage drag, avoiding the inheritance of unwanted neighboring traits.

\ud83d\udd11 Takeaway: Knowing how recombination is distributed across genomes is crucial for breeders to design the marker strategy and introduce valuable traits while keeping their elite material clean.

\u2728 At AgroSynapsis<\/a>, we offer training workshops and coaching on topics of molecular breeding, explaining complex concepts with clarity and simplicity.

\ud83d\udc49 If you\u2019d like to be informed about our upcoming workshops, and receive early access and discounts, f\ud835\uddf6\ud835\uddf9\ud835\uddf9 \ud835\uddfc\ud835\ude02\ud835\ude01 \ud835\uddfc\ud835\ude02\ud835\uddff \ud835\ude00\ud835\uddf5\ud835\uddfc\ud835\uddff\ud835\ude01 \ud835\ude01\ud835\uddff\ud835\uddee\ud835\uddf6\ud835\uddfb\ud835\uddf6\ud835\uddfb\ud835\uddf4 \ud835\uddf6\ud835\uddfb\ud835\ude01\ud835\uddf2\ud835\uddff\ud835\uddf2\ud835\ude00\ud835\ude01 \ud835\uddf3\ud835\uddfc\ud835\uddff\ud835\uddfa here:

https:\/\/lnkd.in\/g3tApqPz<\/a><\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/div>\n
<\/div>","protected":false},"excerpt":{"rendered":"

Learn what are the differences between genetic and physical maps, and why both are useful for plant breeding.<\/p>","protected":false},"author":2,"featured_media":5055,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[46],"tags":[],"class_list":["post-5094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-bites"],"yoast_head":"\nGenetic vs. Physical Maps \u2013 Why distances don\u2019t always match - AgroSynapsis<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/agrosynapsis.com\/es\/genetic-vs-physical-maps\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match - AgroSynapsis\" \/>\n<meta property=\"og:description\" content=\"Learn what are the differences between genetic and physical maps, and why both are useful for plant breeding.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/agrosynapsis.com\/es\/genetic-vs-physical-maps\/\" \/>\n<meta property=\"og:site_name\" content=\"AgroSynapsis\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-08T07:35:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-08T07:36:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1080\" \/>\n\t<meta property=\"og:image:height\" content=\"1350\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Rachil Koumproglou\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rachil Koumproglou\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/\"},\"author\":{\"name\":\"Rachil Koumproglou\",\"@id\":\"https:\/\/agrosynapsis.com\/#\/schema\/person\/ae7208ed31d8f16389985557afe894e8\"},\"headline\":\"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match\",\"datePublished\":\"2025-10-08T07:35:13+00:00\",\"dateModified\":\"2025-10-08T07:36:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/\"},\"wordCount\":311,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/agrosynapsis.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg\",\"articleSection\":[\"Knowledge Bites\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/\",\"url\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/\",\"name\":\"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match - AgroSynapsis\",\"isPartOf\":{\"@id\":\"https:\/\/agrosynapsis.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg\",\"datePublished\":\"2025-10-08T07:35:13+00:00\",\"dateModified\":\"2025-10-08T07:36:41+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage\",\"url\":\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg\",\"contentUrl\":\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg\",\"width\":1080,\"height\":1350},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/agrosynapsis.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/agrosynapsis.com\/#website\",\"url\":\"https:\/\/agrosynapsis.com\/\",\"name\":\"AgroSynapsis\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/agrosynapsis.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/agrosynapsis.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/agrosynapsis.com\/#organization\",\"name\":\"AgroSynapsis\",\"url\":\"https:\/\/agrosynapsis.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/agrosynapsis.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2024\/10\/logo-sin-fondo.png\",\"contentUrl\":\"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2024\/10\/logo-sin-fondo.png\",\"width\":506,\"height\":134,\"caption\":\"AgroSynapsis\"},\"image\":{\"@id\":\"https:\/\/agrosynapsis.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/agrosynapsis.com\/#\/schema\/person\/ae7208ed31d8f16389985557afe894e8\",\"name\":\"Rachil Koumproglou\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/agrosynapsis.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/59151e2a1e54e4386f583749402ab932771ebea8516b0ea81c6646b49cf3d960?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/59151e2a1e54e4386f583749402ab932771ebea8516b0ea81c6646b49cf3d960?s=96&d=mm&r=g\",\"caption\":\"Rachil Koumproglou\"},\"sameAs\":[\"http:\/\/agrosynapsis.com\/\"],\"url\":\"https:\/\/agrosynapsis.com\/es\/author\/rachil-koumproglou\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match - AgroSynapsis","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/agrosynapsis.com\/es\/genetic-vs-physical-maps\/","og_locale":"es_ES","og_type":"article","og_title":"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match - AgroSynapsis","og_description":"Learn what are the differences between genetic and physical maps, and why both are useful for plant breeding.","og_url":"https:\/\/agrosynapsis.com\/es\/genetic-vs-physical-maps\/","og_site_name":"AgroSynapsis","article_published_time":"2025-10-08T07:35:13+00:00","article_modified_time":"2025-10-08T07:36:41+00:00","og_image":[{"width":1080,"height":1350,"url":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg","type":"image\/jpeg"}],"author":"Rachil Koumproglou","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Rachil Koumproglou","Tiempo de lectura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#article","isPartOf":{"@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/"},"author":{"name":"Rachil Koumproglou","@id":"https:\/\/agrosynapsis.com\/#\/schema\/person\/ae7208ed31d8f16389985557afe894e8"},"headline":"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match","datePublished":"2025-10-08T07:35:13+00:00","dateModified":"2025-10-08T07:36:41+00:00","mainEntityOfPage":{"@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/"},"wordCount":311,"commentCount":0,"publisher":{"@id":"https:\/\/agrosynapsis.com\/#organization"},"image":{"@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage"},"thumbnailUrl":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg","articleSection":["Knowledge Bites"],"inLanguage":"es","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/","url":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/","name":"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match - AgroSynapsis","isPartOf":{"@id":"https:\/\/agrosynapsis.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage"},"image":{"@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage"},"thumbnailUrl":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg","datePublished":"2025-10-08T07:35:13+00:00","dateModified":"2025-10-08T07:36:41+00:00","breadcrumb":{"@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#primaryimage","url":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg","contentUrl":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg","width":1080,"height":1350},{"@type":"BreadcrumbList","@id":"https:\/\/agrosynapsis.com\/genetic-vs-physical-maps\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/agrosynapsis.com\/"},{"@type":"ListItem","position":2,"name":"Genetic vs. Physical Maps \u2013 Why distances don\u2019t always match"}]},{"@type":"WebSite","@id":"https:\/\/agrosynapsis.com\/#website","url":"https:\/\/agrosynapsis.com\/","name":"AgroSynapsis","description":"","publisher":{"@id":"https:\/\/agrosynapsis.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/agrosynapsis.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/agrosynapsis.com\/#organization","name":"AgroSynapsis","url":"https:\/\/agrosynapsis.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/agrosynapsis.com\/#\/schema\/logo\/image\/","url":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2024\/10\/logo-sin-fondo.png","contentUrl":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2024\/10\/logo-sin-fondo.png","width":506,"height":134,"caption":"AgroSynapsis"},"image":{"@id":"https:\/\/agrosynapsis.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/agrosynapsis.com\/#\/schema\/person\/ae7208ed31d8f16389985557afe894e8","name":"Rachil Koumproglou","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/agrosynapsis.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/59151e2a1e54e4386f583749402ab932771ebea8516b0ea81c6646b49cf3d960?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/59151e2a1e54e4386f583749402ab932771ebea8516b0ea81c6646b49cf3d960?s=96&d=mm&r=g","caption":"Rachil Koumproglou"},"sameAs":["http:\/\/agrosynapsis.com\/"],"url":"https:\/\/agrosynapsis.com\/es\/author\/rachil-koumproglou\/"}]}},"jetpack_featured_media_url":"https:\/\/agrosynapsis.com\/wp-content\/uploads\/2025\/10\/POst_Dominance.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/posts\/5094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/comments?post=5094"}],"version-history":[{"count":2,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/posts\/5094\/revisions"}],"predecessor-version":[{"id":5098,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/posts\/5094\/revisions\/5098"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/media\/5055"}],"wp:attachment":[{"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/media?parent=5094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/categories?post=5094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agrosynapsis.com\/es\/wp-json\/wp\/v2\/tags?post=5094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}