JP4696195B2 - ウシ個体における枝肉重量を評価する遺伝子マーカー及びそれを用いた枝肉重量評価方法 - Google Patents
ウシ個体における枝肉重量を評価する遺伝子マーカー及びそれを用いた枝肉重量評価方法 Download PDFInfo
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Description
Takasuga et al. (2007) Mamm. Genome 18, 125-136. 瀬戸口ら(2006)日本動物遺伝育種学会第7回大会要旨集
そこで、本発明は、遺伝子マーカーを用いたウシ個体における枝肉重量を評価する評価方法を提供することを目的とする。
ウシ野生型NCAPG遺伝子のe9部位における塩基はTであるが、実施例に示すように、ウシNCAPG遺伝子のe9部位における塩基がGである場合、枝肉の重量が増加する。従って、ウシNCAPG遺伝子のSNPのうちで、e9部位における塩基を決定すれば、枝肉の重量を評価したり、予測したりすることができる。
本発明において、ウシ個体の枝肉の重量を評価する際の診断マーカーは、ウシNCAPG遺伝子のe9部位におけるSNPを検出するための遺伝子関連物質をいう。例えば、NCAPG遺伝子を含むDNA、転写物であるhnRNAやmRNA、翻訳物であるポリペプチド、最終産物であるタンパク質などが含まれる。
e9部位における塩基の種類は、分子生物学的に決定すればよく、例えば、ウシ細胞からゲノムDNAを抽出し、e9部位の塩基を常法によって決定する。このe9部位の塩基がGのヘテロ接合またはGのホモ接合であれば、そのウシの枝肉の重量は重いと評価できる。
NCAPG遺伝子の少なくとも一方のアリルで、e9部位の塩基がGであり、そのためE9部位のアミノ酸がメチオニンであるNCAPGタンパク質を発現する変異ウシにおいては、実施例のように、枝肉重量が増加している。このNCAPG遺伝子において、e9部位以外の変異はないか、あっても枝肉重量の増加とは関連しない。
ゲノムDNAは、精液、腎周囲脂肪もしくは血液より常法により抽出した。目的とするゲノム断片を特異的に増幅できるプライマーを用いて、PCR法により該当ゲノム領域を増幅した。マイクロサテライトについては、リバース側プライマーを蛍光標識し、PCR増幅産物をABI 3730 DNAアナライザー(アプライドバイオシステムズ社)で電気泳動後、GENESCANとGeneMapperソフトウェア(アプライドバイオシステムズ社)により解析することでタイピングを行った。SNPについては、Big Dye Terminator v.3.1 Cycle Sequencing Kit (アプライドバイオシステムズ社)を用いてPCR増幅産物のダイレクトシークエンシングを行うことによって配列を決定し、SNPの検出およびタイピングを行った。表2のSNP 19については、繰り返し配列の多型であるので、リバース側プライマーを蛍光標識し、PCR増幅産物をABI 3730 DNAアナライザー(アプライドバイオシステムズ社)で電気泳動後、GENESCANとGeneMapperソフトウェア(アプライドバイオシステムズ社)により解析することでタイピングを行った。
枝肉重量は、屠場に出荷されたウシの枝肉の格付け成績を用いた。
本実施例では、NCAPG遺伝子のe9部位に生じたGへの変異が優性変異であり、枝肉重量に影響を及ぼすことを示す。
Claims (7)
- ウシ個体における枝肉重量を増加させる遺伝的能力を評価する評価方法であって、
NCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)遺伝子のe9部位における塩基またはNCAPGタンパク質のE9部位におけるアミノ酸を決定し、
前記塩基がGであるか、または、前記アミノ酸がメチオニンである場合、その個体の枝肉重量を増加させる遺伝的能力が、前記塩基がTであるウシ個体よりも高いと評価することを特徴とする評価方法であり、
ここで、前記e9部位は、ウシNCAPG遺伝子において、配列番号1のウシNCAPG遺伝子cDNA(NM_001102376)における1372番目の塩基に対応する塩基であって、
前記E9部位は、ウシNCAPGタンパク質において、配列番号2のウシNCAPGタンパク質(NP_001095846)における442番目のアミノ酸に対応するアミノ酸である、評価方法。 - e9部位における塩基がGであることを特徴とするウシNCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)遺伝子であって、
前記e9部位は、ウシNCAPG遺伝子において、配列番号1のウシNCAPG遺伝子のcDNA(NM_001102376)における1372番目の塩基に対応する塩基である、遺伝子。 - E9部位におけるアミノ酸がメチオニンであることを特徴とするウシNCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)タンパク質であって、
前記E9部位は、ウシNCAPGタンパク質において、配列番号2のウシNCAPGタンパク質(NP_001095846)における442番目のアミノ酸に対応するアミノ酸である、タンパク質。 - ウシNCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)遺伝子のe9部位を含む前記遺伝子の一部又は全部を有し、当該e9部位における塩基がGであることを特徴とするDNAであって、
前記e9部位は、ウシNCAPG遺伝子において、配列番号1のウシNCAPG遺伝子のcDNA(NM_001102376)における1372番目の塩基に対応する塩基である、DNA。 - ウシ個体における枝肉重量を増加させる遺伝的能力を評価する遺伝子マーカーであって、
ウシNCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)遺伝子のe9部位を含む前記遺伝子の一部又は全部を有するDNAからなり、
前記e9部位は、ウシNCAPG遺伝子において、配列番号1のウシNCAPG遺伝子のcDNA(NM_001102376)における1372番目の塩基に対応する塩基である、遺伝子マーカー。 - 枝肉重量を増加させる遺伝的能力の高いウシ個体を選択する選択方法であって、
各ウシ個体でNCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)遺伝子のe9部位における塩基を決定する工程と、
NCAPG遺伝子の少なくとも一方のアリルで、当該塩基がGである個体を選択する工程とを含み、
前記e9部位は、ウシNCAPG遺伝子において、配列番号1のウシNCAPG遺伝子のcDNA(NM_001102376)における1372番目の塩基に対応する塩基であることを特徴とする、選択方法。 - E9部位のアミノ酸がメチオニンであるNCAPG(non-SMC (structural maintenance of chromosomes) condensin I complex, subunit G)タンパク質を発現する発現ベクターであって、
前記E9部位は、ウシNCAPGタンパク質において、配列番号2のウシNCAPGタンパク質(NP_001095846)における442番目のアミノ酸に対応するアミノ酸である、発現ベクター。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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JP2008091328A JP4696195B2 (ja) | 2008-03-31 | 2008-03-31 | ウシ個体における枝肉重量を評価する遺伝子マーカー及びそれを用いた枝肉重量評価方法 |
CN2009101283505A CN101580880B (zh) | 2008-03-31 | 2009-03-30 | 评价牛个体的胴体重量的基因标记及使用其的胴体重量评价方法 |
CA002660936A CA2660936A1 (en) | 2008-03-31 | 2009-03-30 | Gene marker for evaluating genetic ability for carcass weight in bovine and method for evaluating genetic ability for carcass weight using the same |
GB0905386.9A GB2458788B (en) | 2008-03-31 | 2009-03-30 | Gene marker for evaluating genetic ability for carcass weight in bovine and method for evaluating genetic ability for carcass weight using the same |
DE102009015719A DE102009015719A1 (de) | 2008-03-31 | 2009-03-31 | Genmarker zur Bewertung der genetischen Fähigkeit für Schlachtkörpergewicht bei Rindern und Verfahren zur Bewertung der genetischen Fähigkeit für Schlachtkörpergewicht unter dessen Verwendung |
KR1020090027269A KR100934438B1 (ko) | 2008-03-31 | 2009-03-31 | 소 개체에 있어서의 지육중량을 평가하는 유전자 마커 및 그것을 이용한 지육중량평가방법 |
AU2009201255A AU2009201255B1 (en) | 2008-03-31 | 2009-03-31 | Gene marker for evaluating genetic ability for carcass weight in bovine |
US12/415,143 US20090260095A1 (en) | 2008-03-31 | 2009-03-31 | Gene Marker for Evaluating Genetic Ability for Carcass Weight in Bovine and Method for Evaluating Genetic Ability for Carcass Weight Using the Same |
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CN (1) | CN101580880B (ja) |
AU (1) | AU2009201255B1 (ja) |
CA (1) | CA2660936A1 (ja) |
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CN103866001A (zh) * | 2014-01-17 | 2014-06-18 | 甘肃农业大学 | 牦牛胴体性状候选基因检测试剂盒及其检测方法 |
WO2023196818A1 (en) | 2022-04-04 | 2023-10-12 | The Regents Of The University Of California | Genetic complementation compositions and methods |
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DE102009015719A1 (de) | 2009-11-05 |
GB0905386D0 (en) | 2009-05-13 |
AU2009201255B1 (en) | 2010-06-24 |
GB2458788A (en) | 2009-10-07 |
GB2458788B (en) | 2012-05-30 |
CN101580880B (zh) | 2012-07-11 |
CA2660936A1 (en) | 2009-09-30 |
CN101580880A (zh) | 2009-11-18 |
KR100934438B1 (ko) | 2009-12-29 |
JP2009240233A (ja) | 2009-10-22 |
KR20090104749A (ko) | 2009-10-06 |
US20090260095A1 (en) | 2009-10-15 |
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